Embedded Systems in Egypt

Microcontroller Tutorial Embedded Egypt

2011-10-25T00:52:00.005+02:00

Yaw Rate Gyroscope interface to PIC16F917 ( Analog-to-Digital converter Built-in Module )

2011-10-23T18:15:00.003+02:00

In this post we will study the ADC ( Analog-to-Digital ) Module of the Microcontroller PIC16F917 . We will study a real circuit of PIC16F917 interfacing to a semiconductor Gyroscope.

The Gyroscope is a motion sensor that senses tilt in a certain direction . The used sensor is a yaw rate sensor ( free sample from Analog Devices . The Gyroscope ADXRS613 was sent in an evaluation package EVAL-ADXRS613 ) . Yaw means rotation around the vertical access . And rate means the acceleration of this rotational motion.

This is Microchip PIC 16F917 Microcontroller

The output from this sensor is analog signal which represents the Yaw rate in certain direction ( Left or Right ).

The analog signals are converted in the ADC module of the PIC16F917 and are represented on a LED column according to the yaw rate and direction.

The program is very simple and straight forward. It starts by configuring the ports of the Microcontroller for input and output. Then the ADC Module is also configured ( Channel , sampling rate and result data format ).

Then the infinite loop of the program starts which contains the step of

starting the conversion ,

waiting for conversion to complete and

displaying the result on the LEDs.

When the circuit moves in clock wise direction , number of LEDs in one half of LEDs column illuminate according to the rate of change in angular motion.

And When the circuit moves in counter clock wise direction , the other half of the LEDs illuminate indicating change in direction and indicating rate of change in angular motion.

This is the Gyroscope and its datasheet file . ADXRS613

Evaluation Datasheet EVAL-ADXRS613

This is the circuit diagram

This is a picture of the real circuit

http://www.youtube.com/watch?v=LraBA6oD1jI

And this is a video of the circuit in motion

You can find the code and simulation files on this link

This is the circuit as shown on Proteus 7 simulation environment

The Gyroscope is replaced in simulation by a variable resistance because Proteus 7 does not contain a Gyroscope model.

Read this post in Arabic اقرأ هذه المقالة باللغة العربية

Microcontroller Tutorial Embedded Egypt

2011-05-22T17:46:00.005+02:00

Gyro Horizon. Renesas RX62N Kit

2011-05-21T21:58:00.014+02:00

In this post, we 'll show an advanced kit from Renesas based on a modern microcontroller RX62N .

I received this kit by participation in Renesas Design Contest 2010. The kit has various types of sensors and interfaces to the outer world that cannot be makes you wonder how to use them all in one application. For example, it contains a 3D accelerometer and a temperature sensor, USB , CAN , Ethernet and RS-232 interfaces and an alphanumeric LCD.

This is the Renesas RX62N Kit

The contest allows each contestant participate using only one application.

I wondered what application should I design , and I decided to design an ADI after being inspired by the Embraer 170 ADI ( Attitude Direction Indication )

This is the ADI

The ADI is an important aviation instrument that helps the pilot controlling and the aircraft. It senses and indicates Pitch ( Up and Down ) and Roll ( Right and Left ) attitude of the aircraft.

The actual ADI instrument senses the attitude using sensors in the aircraft called Gyroscope. The modern types of ADI collects attitude data from an electronic device called Laser Gyro or Fiber Optic Gyro.

My version of ADI uses a built in sensor in the Renesas kit called Accelerometer.

This is the running application on the kit ( ADI appears on the LCD )

The Accelerometer is an electronic MEMS sensor that senses acceleration in three dimensions.

The Accelerometer senses the acceleration in three dimensions and then the RX62N microcontroller reads the data and then draws the output indication on the LCD on the kit.

This is the kit and the application on the LCD

This is the video of the kit in action.

Here is the contest entry :

http://www.renesasrulz.com/docs/DOC-1739

16F84A Stepper Motor Control

2010-11-29T20:30:00.036+02:00

In this post , we 'll see how to control a stepper motor using the Microcontroller PIC 16F84A.

The stepper motor is a special type of motor in which motion can be controlled by speed and position. As the name complies, the stepper motor moves in steps (degrees) .

Unlike other types of motors, stepper motors have more than 2 terminals ( They can have 3 , 4 or five terminals ) .

Thus , the stepper motor is driven by switching its coils ON and OFF according to certain sequence. The function of the microcontroller is generating the driving signals.

Of course, the output current of the Microcontroller is not sufficient to drive the motor coils. There is an interfacing IC that can supply the motor coils with the suitable driving current.

This IC is ULN2003. It acts as an electronic switch opened and closed according to the output signals of the Microcontroller.

This is the real circuit connection

As you can see , I used an old hard disk drive motor. This is a three coil stepper motor. Actually it has 4 terminals ( 3 Coils and 1 Common ).

You can see the four terminals on the back of the motor

This video shows the stepper motor connected to the driving circuit and rotating

You can find the source code and simulation files on this link.

The simulation model shows LEDs connected to the Microcontroller 16F84A. That is because this version of Proteus ISIS does not contain a three coil stepper motor model.

This is the schematic diagram of the circuit.

16F84 SERIAL COMMUNICATIONS

2010-07-24T10:48:00.035+03:00

In many projects exists the need to exchange information with outside world. This case can be the need to store information from your project to a database on a standard PC or a need to communicate with another device. RS232 is widely used serial communications protocol. Modern Microcontroller chips contain hardware modules for such communications protocol. In those chips all you have to do is configuring the RS232 module and to choose the right crystal to produce the desired baud rate .

But in Microcontroller as 16F84A there is no such hardware communications modules. Serial communication can be established by software or Bit-Bang method. The standard RS232 protocol uses +12v to represent logic 0 and -12v to represent logic 1 . While TTL uses +5v to represent logic 1 and 0 V to represent logic 0.

An external IC is used as an interface between the Microcontroller and an RS232 enabled device ( PC for example ) . This IC MAX232 or HIN232 performs this level shifting function between the RS232 and TTL protocols.

Recently , I found a website implementing RS232 protocol in software using C language. The new method represented in this website is using the inverted logic ( 0v for logic 1 and +5v for logic 0 ) .

This method enables connection of the Microcontroller directly to the PC. The web page clearly explains this method . The PIC 16f8A can withstand +12v and -12v when receiving data from PC . And for data transmission to PC 0v to +5v can be distinct by the PC as two different levels.

I really wanted to try this code in real world and built the simple circuit as shown in the web page. The designer recommends connecting a resistor for PIC protection .

Of course , you can find that it is a very simple circuit that provides another new usage for the PIC 16F84A.

So how can you use the serial data form the Microcontroller ?

You can write a simple software for the PC that reads from the PC's serial port ( com1 or com2 ) . Or you can simply open the famous program Hyper terminal that comes with all Microsoft windows versions under the menu Programs --> Accessories --> Communications --> HyperTerminal. Then you need to configure the right Com port , Baud rate and Flow control . As shown here

I used a serial connector from an old mouse to connect the circuit board to the PC .

Here is the pinout of the 9 pin serial connector

This is the Hyper terminal program showing "Hello World" message from the Microcontroller .

This is the schematic drawing of the circuit

Here is the real circuit board I built and the serial connector connected to it .

Here, we 'll use the serial communication protocol RS232 to adjust the Microcontroller which in turn controls a DC motor by the PWM signals.

By choosing the motor speeds and sending them to the Microcontroller, we are able to choose PWM signals duty cycles and sending them to the Microcontroller via RS232 protocol.

The ciruit between the Microcontroller and the PC is very simple. All you have to connect is the PIC16F84A , the crystal oscillator and the RS232 9 pin female connector.

The Microcontroller is supplied by the 12V DC from RS232 pin 7 RTS. Do not be afraid of losing the PIC chip, it can withstand it without damage.

The PIC16F84A Tx pin 1 is connected directly to RS232 pin 2 Rx.

The PIC16F84a Rx pin 17 is connected to RS232 pin 3 Tx through 10k ohm resistor to adjust the input voltage to the PIC.

The motor driving part of the circuit has already been explained in the PWM DC motor control post. So I 'll use the same driving circuit.

The PWM signal comes from the PIC16F84A to the NPN 2N2222 transistor base. This transistor acts as an electronic switch.

The DC motor is driven by an external DC 9v battery.

This image shows the Proteus 7 Model of the project

As usual , you may want to try the code and the circuit om the simulator first before building it . So , you 'll find the Proteus 7 model and code in this link . But to properly send and receive data form PIC 16F84A to the virtual terminal model in Proteus 7 environment it must be configured to use inverted data . You 'll find that I configured this for the model . But if you want to see it for yourself , right click on the virtual terminal model and choose inverted .

16F84A VGA Output

2010-07-13T20:47:00.022+03:00

Have you ever thought of this ?

That you can generate any kind of signals using your little Microcontroller PIC 16F84A . And one of these signals is the VGA signal that appears on your PC monitor . I thought of this idea but I couldn't implement it. But I found it at this website. So I wanted to try if it is working and share it with you.

I found an old web page containing this project http://tinyvga.com/pic-vga . I just made some minor modification on that project and put it into a real circuit. I found that the there is a small timing issue in this software that makes the monitor flicker repeatedly.

The circuit is very simple. It consists of the Microcontroller PIC 16F84A and the 15 pin female VGA connector.

This is the schematic diagram of the circuit

This is the pinout of the VGA connector

There is a simple hint for your when downloading the software on the

Microcontroller . Make sure that the configuration is :

PRTE ON

XT

WDT OFF

I took this pictures for the monitor after running the program.

This picture shows the circuit.

You can see in this video the flickering I told you about.

I 'll try to fix this issue and post it when I am done with it. Now I will show you the results of the current software. I hope you enjoy it.

Here is the link for the Proteus 7 Model , source code and Hex file .

Hacking Infrared with PIC 16F84A

2010-07-10T19:33:00.001+03:00

Send an Infrared signal with PIC 16F84 :

In this post, we 'll learn about transmission of the Infra red signals using PIC16F84. You can use Infra red signal in many projects ( Robots, Touch less counters, Theft alarming .. )

All you need to know to start using Infra Red signals are IR transmitters ( IR LEDs ) and IR receivers ( IR receiver modules ) .

The IR LEDs are normal LEDs in the outer shape but they emit IR signals and of course these signals cannot be seen by the human eye. You can though make sure it is working fine by using a digital camera. The digital camera can detect the Infra Red signal and makes them visible to you.

This image shows you how the digital camera in the mobile phone can make you see the IR signal transmitted from a normal IR remote control.

The other difference between visible light LED and IR LED is that in visible light LED, the +ve terminal (Anode) is the longer one. But in IR LED, the +ve terminal (Anode) is the shorter one.

The second thing you need to know is the IR receiver module. It is an IR receiver component connected to a demodulator and amplifier circuit. The function of the demodulation circuit is to demodulate the modulated signal received by the receiver module. This means that this module can receive and understand ONLY modulated signals !!!

YES , that's true. And this is used to differentiate between the IR communication and control signals and IR signal emitted from all the objects around us and from all visible light sources. The demodulator circuit has a Band Pass Filter (BPF) that can detect only signals modulated by a 34kHz carrier signal. Here is a datasheet for TSOP312 Infrared receiver module .

This means that if you want to transmit a signal that can be demodulated as (1), you need to send a continuous signal of 34kHz from your IR transmitter LED.

This is the signal I captured from the Remote Control by the IR receiver

And this is the signal I generated from the PIC 16F84A

The software is very simple this time and written in Assembly Language . All it does it sending pulses to the IR LED at the correct frequency for the correct periods of time. It consists of a 34KHz carrier modulated by the signal of consecutive zeros and ones.

I knew the time coding of the TV remote control by capturing the signal using the IR receiver module to the sound card of the PC . Then I viewed it using a sound editing software to show the exact times for the IR signal.

Here is the link for the Proteus 7 model and software for the project.

7 Segment POV

2010-06-07T21:00:00.002+03:00

This is a post about the POV ( Persistence of Vision ) Display that uses one 7 Segment display.

In short, I made this little project as a prove of concept of something I 've always noticed in many electronic devices those used 7 segment display.

In those devices, the 7 segment display was flickering instead of lighting it with steady volt and displaying the number accordingly. That flickering effect may be nice to some people and may be annoying for others.

So I decided to build this project so fast on a breadboard and wrote the C code for it.

In this image you can see the 7 segment connected to the PIC16F84A Microcontroller on a breadboard and flickering with numbers.

I just made this 7 segment display flickers with different numbers

I thought that if those flickering devices displayed many numbers at high speed and have been moved , guess what , the POV effect will be produced.

That's right. the same POV effect we 've seen made using LEDs can be produced by a single moving 7 segment display.

Here, you can see some pictures of the breadboard while being waved to the left and right in front of the camera.

The POV effect here makes our eyes ( and the camera too ) see the numbers as separate from there each other as four digits.

Here is a short video.

The circuit is very simple. I used a common anode 7 segment display directly driven by the PIC16F84A. And written the program in C code. The 7 segment patterns are directly sent to PORTB to be displayed on the 7 segment display.

You can find the Proteus 7 model and C program here .

I hope you enjoy this project.

I love PIC 16F84 :LCD to PIC 16F84 Interface

2010-05-08T18:45:00.013+03:00

LCD Interface to PIC 16F84

I really love this Microcontroller PIC 16F84 . I am always searching for programs and projects and piece of code written for this old Microcontroller.

Today I found code on the web for this chip interfacing it to a standard LCD module.

http://www.electronic-engineering.ch/microchip/projects/LCDx_test/LCDx_test.html#assembler_code

It is written in assembly language and I am not going to explain it. So I 'll leave it to you to understand.

I only made a Proteus 7 model for the circuit that you can find it here . I promise you to make a new post for the LCD interface using the embedded C language.

Microcontroller and Success : A true Story

2010-04-29T22:21:00.046+02:00

At the year of 2008 , I found an advertisement in Appliance magazine about a free kit from a Microcontroller company called Renesas.

I really wanted to get this development kit. It was dedicated to motor control. I registered for this kit but unfortunately it was available only in USA and Canada.

However, my email was added in the company's clients database. Next, the company started a design contest at the same year called Renesas HTS Design Contest 2008.

The company invited me to participate in this design contest. It was a world wide contest which included shipment of free development kit to each eligible participant.

First I was admired by the idea itself of receiving a free development kit for the contest. I wanted to have this kit to learn more about Embedded C programming and to learn the Renesas technology which was new to me until that time.

To be eligible to receive the kit, there was a short demo for the company's other educational boards over a Virtual Lab environment. Then you are asked few questions to qualify for receiving the kit.

I passed through the stages of qualification and waited to receive the kit. When I received it I started to develop my design right away.

The company made a very good idea for improving the challenge through the launch of a forum for the challenge.

Each participant posted the idea of his entry and provided some technical details about it . This idea was very helpful and motivational. Any visitor or another participant can see your posted details and get admired with it or comment on it.

My design was a Multichannel Oscilloscope. The idea was very simple. I made the analog signals read by the analog-to-digital converter of the Microcontroller M16C ( on which the board is based )

The M16C has many A/D inputs but and there were 3 of them available in the challenge board.
The signals values were converted into digital in the Microcontroller and they were sent to a PC based client software which incorporated the display of a virtual Multichannel Oscilloscope.

Virtual Oscilloscope

This is the Renesas HEW program window

From the PC based client, the user can choose the input channel to be displayed on the virtual oscilloscope and the rate at which it is displayed.

Program Control Panel

Before the last day of the deadline of the contest I submitted the source code for the Microcontroller side (written in Embedded C ) and the source code of the PC client (written in Visual Basic.Net) .

The results of the contest were announced on Renesas DevCon 2008.

I've got the 4th honorable mention prize for my entry "Multichannel Oscilloscope".

This contest was very challenging and rewarding. Thanks to Renesas who has helped me through all this contest.

Location for the HTS 2008 projects:

http://www.renesasrulz.com/thread/2225;jsessionid=7AFAE50480BD5DF2D4D3F616A03277EA?decorator=print&displayFullThread=true

Here is the location for my project:

http://www.renesasrulz.com/docs/DOC-1290

Information Disaster Recovery .

2010-04-17T17:01:00.016+02:00

Data Recovery In Egypt

This post is not about Embedded Systems. It is about a problem that many people face it. Many people save their valuable data on their PCs and then something happens. A virus infects the MBR( Master Boot Record ) of the hard disk and all the partitions and data on that PC is not accessible. Or somebody saves his data on partitions other than the system partition but tries to setup Windows on the system partition and makes a mistake and installs Windows on the data partition. When he finds this out, He tries to get his important and valuable data but he can't.

I've seen the two examples happening to many people. When your PC contains some games or songs or some sources for some common programs , then your loss wouldn't be great.

But what if these data were collected and produced over a long period of time ?

And what if these data were precious photos and memories that you cannot get from any where and you didn't make backup for them ?

And what if you have saved your Master or PHD data on this PC without making backup ?

Fortunately, you can recover the data form your hard or flash disk even if they were formatted by mistake or their MBR is corrupted due to a Virus infection or a wrong operating system installation procedure.

Many programs can help you to get you lost data. But they sometimes are hard to use.

I myself have done this many times. Both recovering data form a hard disk which the user has installed Windows on the data partition by mistake and recovered data form a Hard Disk with a totally corrupted MBR .

If you faced this problem some day and don't know where to start from, just give me a call 0104718050. I am sure I can help.

0104718050

aebeed@odesk.com

Disaster Recovery Specialist.

Embedded Systems Committee

2010-03-11T21:21:00.009+02:00

Well , this is not a technical post. I wanted to share this with all my friends in Egypt . Embedded Systems Committee is a group of Egyptian Embedded Systems Engineers who graduated from ITI intake 27 . They wanted to do something useful to there community . They wanted to share there knowledge with their colleges and Engineering students through this group.

I found about this group and their activities in Egypt on EED '09 , and since then I 've been trying to find their contacts .

Now, I will share this information with you to contact them and you may attend one of their seminars .

This is their group on Facebook

http://www.facebook.com/group.php?gid=18263984084

And this is their Email address :

info@ESCommittee.com

Website :

www.ESCommittee.com

And this is a group I created on Facebook just after I heard about them in EED '09 before I find theirs .

http://www.facebook.com/group.php?v=info&gid=113460832366#!/group.php?v=wall&gid=113460832366

Finally, I hope you found this post useful.

PSoC Rocks !!

2010-02-05T00:03:00.060+02:00

Cypress PSoC 3 First Touch Starter Kit

I just received the PSoC 3 first touch starter kit. I new about it from the Cypress news letter I receive regularly. This is a free educational kit. It contains many sensors and shipped with sample codes for programs implementing all these sensors.

The contains thermal sensor , proximity sensor , capacitive touch panel , wireless communications module and my favorite sensor 3D accelerometer .

The first application I found as I opened the kit was PSoC Rocks . This is a manually scanned AirText display that is the same as the I made using Microchip PIC 16F84. But this one is a more advanced application that uses the accelerometer in the direction at which the circuit is waved . It uses the POV ( Persistence Of Vision ) .

When the acceleration threshold is reached, the scanned display is started. And it determines the direction of waving so that it doesn't draw the display in the opposite direction. Actually this is the same advancement I thought for my previous application.

I shoot this one myself as I started using the kit

For people who don't know about Cypress and PSoC :

PSoC ( Programmable System on Chip ) is an advanced microcontroller architecture from PSoC which includes some digital and analog modules for simplifying designing Embedded Systems with digital and analog peripherals. Examples of digital modules ( counters , timers , RS-232 , UART , USB .. ) and analog modules ( Programmable Gain Amplifiers , filters ... )

This is the actual kit I received

This is a video for the kit

16F84 POV AirText

2009-12-12T16:41:00.044+02:00

POV (Persistence Of Vision)

This is a post of LEDs project. The project is called POV (Persistence Of Vision). If you are not familiar with this concept, it works as an LED matrix display.

The difference is that POV display consists of one column of LEDs only and is mechanically scanned through space to give the vision of a 2D LED Matrix Display.

Many projects are built in rotating ( circular motion ) or in oscillating layout ( moving left and right) .

I 've seen this project "AirText " based on the Sun Microsystems Sun Spot , then I wanted to make a similar yet more simple project.

There are many Microcontroller projects based on the POV concept. But i think this is the simplest circuit that can do the job with minimum hardware.

The only drawback with this circuit is that it has no sensor for direction of motion. The
Sun Microsystems Sun Spot has a built in motion sensor called accelerometer. Which senses the amplitude and direction of acceleration. So when the module is moved in one direction it draws the scanned characters according to this direction.

But with this simple circuit using PIC16F84, the characters are drawn in one direction independently of the circuit direction of motion.

You can find the source code , Hex file and Proteus 7 design file here.

PIC 16F84 Tetris Video Game

2009-11-25T23:27:00.015+02:00

This is an old project that uses the Microcontroller chip PIC16F84 for the famous game Tetris. The output of this circuit is displayed on a TV screen. It also produces sound signals and can be controller by joystick.

I didn't design this circuit nor wrote the software for it , but I found it here and assembled it and found it very interesting. That's why I wanted to share it with my friends.

Here is a screen shot of the game.

And this is the schematic diagram for the circuit.

There is a free Emulator for the Microchip PIC that contains TV screen plug-in for viewing PIC signals that is directed to the TV. I found it here . I also uploaded the file Here.

You can get the project package form here . It contains the schematics , PCB and software .

Moway robot

2009-10-05T17:36:00.011+02:00

Moway is a robotic system based on the famous Microchip PIC Microcontroller. It is very useful for students of robotics and embedded systems courses.

Moway is a small autonomous robot designed mainly for practical applications of mobile robotics.

Technical Specifications:

The robot is controller by a 4Mhz PIC16F876A Micorcontroller.

As for the drive system, Moway has a dual servo-motor unit enables it to move.

The drive system is a closed loop system that uses PWM signals to control the speed of the motor and an encoder signal to measure the speed.

The movement of Moway can be controlled through different parameters:

Speed control, Time control , Distance traveled and Angle control.

Also, Moway is equipped with sensors used for advanced autonomous motion control :

Line sensor : Mounted on the lower front part of the robot to determine the shade of color on which the robot is standing.

Obstacle detection sensors : These sensors operate in the same way as the line sensors, but they can determine the presence of obstacles ( in digital mode ) and the distance of it ( in analog mode ).

Light sensors : Measures the intensity of ambient light and the change in it.

Moway has an expansion connector to which an RF module can be connected to communicate with other Moways or with a PC.

There are four LEDs used for indication.

http://www.moway-robot.com/

16F917 CCP Block PWM

2009-09-20T10:09:00.020+02:00

PIC 16F917 PWM Generation:

PWM can easily be generated on the PIC 16F917 using the CCP block . If you are new to this concept then let me introduce it to you.

New Microcontrollers contain dedicated hardware blocks for generating signals and for doing special functions. An example of these blocks is the CCP block in many Microchip Microcontrollers.

In this post, I 'll introduce you with the CCP block of the PIC 16F917 Microcontroller.

It is called Capture , Compare and PWM block. Here, we explain the PWM function.

As the name implies, it generates PWM signals in hardware instead of the software PWM signal we generated using the PIC 16F84 in an old post of this blog.

The advantage of this concept is that you save code space and processing time for another functions and tasks.

So how can you configure this block ?

You 'll find an extensive explanation for this topic on the PIC 16F917 datasheet.

And I used this link to calculate the values for the block configuration registers.

http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator

You can find the design files and source code for the project here .

Now you can use this project to control any circuit with PWM signals generated with PIC 16F917 CCP PWM block as you did before by using PIC 16F84.

You can control DC motor speed , LED intensity and make Mood Light.

If you have any questions or feedback, contact me.

PIC 16F84 Sound Generation

2009-07-29T16:17:00.012+03:00

Do you know that you can generate tones of sound with the PIC16F84?

Yes you can generate these tones similar to the Midi tones of the old mobile phones. This is a very simple and funny circuit and you can try it on the simulation software Proteus ISIS 7 before building it.

Actually the circuit is so small nearly contains no components other than the microcontroller, the crystal oscillator and some resistors.

The software generates the tones according to the predefined words which represent tones.

The circuit lets you choose one of two tones with two push buttons.

You can find the Proteus ISIS Design files DSN, Code ( Assembly ) and HEX file as a sample project in Proteus ISIS 7. From the menu bar , press open file . You 'll find the project under the Proteus --> Samples --> VSM for PIC16 --> PIC Doorbell.

So , open the design now and if you like , start building the circuit and make you own tones.

Have a nice time.

New Microcontroller Chip

2009-07-13T18:27:00.012+03:00

Microchip PIC 16F917

I used the Microchip PIC 16F917 in simple programs and tried the good features of it. I ordered some samples from Microchip.com and they sent them to me. I searched online for a simple programmer that I use it to program the chip the same way I do with the PIC 16F84. I found it here . And I uploaded it here in case you couldn't find it .

The programming circuit is very simple and uses the serial port.

Here is the schematic diagram :

After you build this simple circuit, you can use the program to load the HEX file.

This is a snapshot of the software :

The Microchip PIC 16F917 microcontroller is a very nice and modern chip. You can find its datasheet here :

You can see the circuit I built lately here :

You 'll see more projects using this chip. And I 'll be posting projects for the PIC 16F84.

By the way, The PIC 16F917 is backward compatible with the PIC 16F84. That means if you write a code for PIC 16F84 in assembly or C or even compiled it to HEX file , you can still use it with the PIC 16F917 without a change in code or a recompilation.

Happy programming. Have a nice time.

LED there be light :

2009-06-17T00:37:00.015+03:00

I love LEDs !!!

In this lesson we’ll not learn any new technique from the technical point of view. But this is a cool project. I love LEDs. That‘s true. I cannot deny that. In this project I designed a nice and a simple thing. It is called a chaser. It consists of a row of LEDs. Only one LED is ON during a certain time and all the others are OFF. Then the next one is ON. And so on until reaching the last LED in the row. Then the LED before the last on is ON until reaching the start of the row. The light continues going back and forth. For those who saw the series ‘Night Rider ‘, it reminds you of the front logo of the car Kitt.

As usual, I give you the code and the design files of this project to see the simulation running on the Proteus ISIS 7 here. And for those who like it, the project can easily be built within minutes.

If you need any information, you can comment or send me an Email.

Thank you for dropping by.

DC MOTOR PWM CONTROL :

2009-04-02T21:13:00.028+02:00

In this post, we 'll learn the DC motor control using PWM signal. We learned how to generate PWM signal using PIC 16F84 Microcontroller.

Hardware :

The PWM signal drives a 2N2222 transistor which acts as an electronic switch. The transistor switches the motor driving current on and off at high rate.

In the following figure, there are two circuits. The control circuit ( the microcontroller ) and the driving circuit ( the motor and the transistor ).

The DC motor draws relatively high current than the current in the microcontroller circuit. The transistor isolates the two circuits.

By changing the duty-cycle of the PWM signal, we get different average DC voltage
for each duty-cycle value . The result is the change of the motor speed corresponding to that duty-cycle.

Software:

We use the PWM routine with two defined duty cycle values. The duty cycle value duty1 is the larger value which drives the motor faster than duty2 value. When the Boost button is pressed, the first duty cycle value is selected. When the button is released, the second value is selected.

The software routine is very simple. As usual, you can download the Proteus 7 model from here.

If you need any help or have any feedback, just let me know.

I wish I met you in person

2009-03-27T14:48:00.007+02:00

I wish I meet you in person to thank you for visiting my blog and for knowing your opinion.
And to get more ideas from all around the world about Microchip PIC.

I also want to meet you to tell you about my religion , Islam. Yes, I am Muslim. And I am proud of being a Muslim. And since I had the chance to communicate with open minded , highly educated people from all the world , I can give you an Introduction to Islam. This religion that I want to tell the whole world the truth about it and how it makes the world a better place for the humanity. So , I invite you to check this Introduction to Islam.

If you need to know more about Islam from trusted sources, you can order free book from here.

PWM Mood Light using PIC 16F84

2009-03-07T08:44:00.092+02:00

Generating PWM signal using PIC 16F84

PWM ( Pulse Width Modulation ) is a square signal involves changes in the duration of the on time ( duty cycle ) . It can be easily generated by the PIC 16F84 . This PWM signal can be used in many applications ( for example : DC motor speed , LED brightness intensity , Mood Light Lamps ) .

PWM can be used when no DAC ( Digital-to-Analog Converter ) is available in the microcontroller chip or as a stand alone chip. The average DC voltage values are equivalent to analoge values as where you used DAC for motor speed control .

And for light brightness intensity , at high frequency , the blinking process is not observed by human eyes and what you see is only brightness intensity corresponding to the duty cycle ( time at which light is ON)

At longer duty cycle , LED is ON for longer time , so you see it brighter.

At shorter duty cycle , LED is ON for shorter time , so you see it less brighter.

The previous examples used constant duty cycles at each time which means constant brightness LED and constant speed for motor.

To make Mood Light LED, you need to change the duty cycle of the PWM signal by increasing and decreasing it back and forth.

You get this one .

Note :

You see this image still, just click it and save it to your PC you 'll see it animating ( PWM is variable ) .

I connected this circuit to the LED and it did just as I expected , it looked brighter then dimmed and then brighter again.

You can have the circuit and the code files from here.

If you need any help configuring the compilation settings for Hi-Tech and ISIS 7 , you can check the previous posts. If you need further help about code and hardware you are welcome to contact me.

Lookup table Sine Wave Generation

2009-02-27T22:19:00.048+02:00

Sine Wave Generation using PIC 16f84A :

In this lesson, we 'll learn to use the PIC 16F84A to generate a sine wave signal using lookup table method .

These are pre-calculated values of a certain signal ( here will be a sine wave ) , then the signal is transmitted at execution time . You can consider this an inverse process of the digitization . At execution time, the signal is sent to the output port of the Microcontroller at the rate you determine. You then get the original signal.

Attached a text file that explains how I calculated the values.

The hardware circuit is very simple. It is called Resistor Ladder Network.

When you configure and run your program , you should get an output signal like this

You can get the circuit for Proteus ISIS 7 and the code from here.

If you need any help for configuring the simulator , check my older posts.

You can also contact me directly if you need any further help.

Introduction to Interrupt

2009-02-04T22:42:00.029+02:00

What is the Interrupt?

What‘s the difference between polling and Interrupt?

Let ‘s take an example when you need to know if you have a phone call , you can know this using one of two ways :

1- Go to the telephone and pickup the handset to see if you have a phone call. You‘ll need to do this many times. And you will stop what you do every time.

2- Wait until the phone rings , then you go to it and pick up the hand-set.

Polling is like the first example and Interrupt is like the second example. You need to use interrupt in some applications. It sure decreases the load on the microcontroller and saves its time while doing another thing.

There are two types of interrupt: software and hardware interrupts.

In the following application, we will use Timer interrupt ( one of the Software interrupts ) which is initiated by the Timer0 overflow.

The timer is a free counting register that increments depending on the crystal oscillator speed and the prescaler settings. We can use the timer to calculate accurate time periods. And because we are using interrupt , we don 't have to keep track of time while we are doing another thing. In the following example , the main program functions to monitor a push button and displays a number on a 7 segment display. The number on the display indicates the period in seconds.

Without using interrupt, we would have to calculate the time of the period and taking the display time into account.

Here is the link for the project file and code.

Today, I revisited this page which contains many Microcontroller projects. This is the Cornell University Electrical Engineering students projects page. Many ideas can be found here.

Input to the PIC 16f84

2009-01-31T14:42:00.062+02:00

Now that we learned how to get output form the PIC ( flashing LED ) , we 'll learn to input the

Microcontroller by a push button . This will give you an idea to get order from the user to do an

action ( open door, turn-off lights, ......... ) .

; Button.ASM
;******************************************************

list p=16f84

include "p16f84.inc"

org 0x00

goto start

org 0x20

start

bcf INTCON,7

movlw 0x00

bsf STATUS,5

movwf TRISA

bcf STATUS,5

movlw 0xFF

bsf STATUS,5

movwf TRISB

bcf STATUS,5

again

btfss PORTB,0

call LED_ON

call LED_OFF

goto again

LED_ON

movlw 0xFF

movwf PORTA

goto again

LED_OFF

movlw 0x00

movwf PORTA

goto again

end

;***********************************************

The program makes the LED is ON when the Button is pressed , LED off when Button is released.

The only new command here is BTFSS which checks if the button is pressed or released.

What it makes is Bit Test F Skip if Set where F is a bit in register. This command is a

bit-oriented command. It means it deals with one bit of the register.

Build the following circuit in Proteus 7 ISIS :

Follow the steps you learned before to add the source code to the circuit and configure it , then

start simulation. Of course in this time you 'll add the Button.ASM source code.

Now , we 'll write the same program in C

//******************************************************

#include"pic.h"

main()

{

unsigned char i;

TRISA = 0 ; // Make PORTB output

TRISB = 0xFF ; // Make PORTB input

PORTA = 0 ; // Initialize PORTB

for(;;) // This is the infinite loop that keeps the PIC running

{

if ( PORTB == 0 )

PORTA = 1;

else

PORTA = 0 ;

}

}

//************************************************************

Note that the logic is inverted because the button by default inputs one to the PIC and when pressed inputs zero.

Again , you can configure the project for the C source code from this lesson.

You can download the project files and source code from here.

Enjoy.

Building your first circuit application:

2009-01-22T14:42:00.004+02:00

Enough simulators!!

You may want to try the real circuit to see the microcontroller in action right now. I encourage you to build the circuit and feel it working. This will make you happy and will be a motivation to learn more about microcontrollers and make useful circuits.

So what do you need to get started?

- I guess you have the programming circuit and you have loaded the chip with the HEX file. If not yet, please do it now.

All you need you do is to put the chip in its socket in the programmer and open the program ICProg.

You need to configure the program as follows:

1) Form Settings menu, select Hardware.

- Select JDM Programmer.
- Select the com port you use.
- Select Windows API for Interface menu.

2) Select the microcontroller of your focus (Microchip PIC 16F84A) from the device menu.

3) Select the Flasher.Hex file to be loaded into the Microcontroller .

4) Choose HS for the Oscillator and clear WDT option.

- Build the simplest application circuit for the PIC, the LED flasher.

Here is the schematic.

Simple, isn‘t it?

You don‘t need to make it complex. The push button connected to the pin 4 (~MCLR) is connected to demonstrate how to connect the circuit if you want to reset the microcontroller. If you don‘t need to do this (in this small project) connect the pin 4 to Vcc directly (+ terminal of the battery). This connection makes the microcontroller awake (not reset).

If every thing goes right, you get the LED flashing at a visible rate. Congratulations , you ‘ve just built your first embedded project!

Let 's speed up the rate !!

2009-01-15T20:14:00.004+02:00

Now that we learned to flash an LED using the PIC 16F84, we 'll increase the rate of information flow.

We 'll write the same program using C language. This will be very easy as it is a popular language and it also a high-level language. Most of us used it for computer programming.

That 's the flasher program:

//************************************************

#include"pic.h"

main()

{

unsigned char i;

TRISB = 0 ; // Make PORTB output

PORTB = 0 ; // Initialize PORTB

for(;;) // This is the infinite loop that keeps the PIC running

{

PORTB = 0x00;

// turn all LEDS off

for(i = 100 ; --i ;);

// Delay

PORTB = 0xFF;

// turn all LEDS on

for(i = 100 ; --i ;);

// Delay

}

}

//************************************************

I guess the program is self explaining.

Now again, we 'll try it in Proteus to see it working.

Here are the steps to add the C source code file and compile it.

1. Copy and paste the previous code into a file named flasher.c .

2. Install the program HiTec PIC C .

3. In ISIS 7 , open the flasher.DSN model you used before.

4. On the Source menu , choose Define Code Generation Tools.

5. Press New.

6. Brows to the folder of HiTec PIC C and to Bin folder , choose picl.exe.

7. To add the source , choose Source --> Add/Remove Source files , press New to add

flasher.c choose PICC from the drop-down menu under Code Generation Tool , and on the

Flags text box , type --chip=16f84a to choose the microcontroller type.

8. Now press Source --> Build All.

9. Now choose the oscillator speed and the flasher.HEX file as you did in the Assembly

example.

10 . Press F12 to Run the program.

Here you can find the Proteus ISIS model and the source code

Explaining Flasher Program in Detail

2009-01-02T16:43:00.000+02:00

You may have felt that the Flasher program is difficult. But this is not true.

Now, we 'll explain it step-by-step. Just remember, when I started learning Microcontroller programming, I started by understanding this program in detail and put on it my own comments to make me remember what each piece of code did.

list p=16f84
include "p16f84.inc"

; This part is necessary for the compiler to
; know the type of the PIC you are using.

org 0x00
goto start

; The word ORG tells the compiler to put the following code ( goto
; start label ) in the address 0x00 which is the reset vector of the PIC

org 0x20
start

; Again. Puts the label start at the address 0x20

bcf INTCON,7

; Clear the R7 bit in the register INTCON which disables the interrupts

movlw 0x00

; Put 0x00 in the W register

bsf STATUS,5

; Set the Bit 5 in the status register which selects Bank 1 in the RAM

movwf TRISB

; Copy the W register content into TRISB register
; [ makes PORTB output]

bcf STATUS,5

; Clear the Bit 5 in the status register which selects Bank 0 in the RAM

again

; This is a label for the repeating part of the program

movlw 0x80
movwf PORTB

; Copies 0x80 [binary 1000 0000 ] in the W register
; Copy the W register content into PORTB register

call delay

; This command calls the Delay routine.

movlw 0x00
movwf PORTB

; Copies 0x00 [binary 0000 0000 ] in the W register
; Copy the W register content into PORTB register

goto again

; This label is important to keep the program running forever

delay

; This is the label for the delay routine
; The delay consists of 3 nested loops

movlw 0x01
movwf 0x0e

; Put 0x01 in W register
; And copy it to the memory address 0x0e in RAM

loop3

; Label

movlw 0xfa
movwf 0x0d

; Put 0xfa in W register
; And copy it to the memory address 0x0d in RAM

loop2

; Label

movlw 0xfa
movwf 0x0c

; Put 0xfa in W register
; And copy it to the memory address 0x0c in RAM

loop1

; Label

decfsz 0x0c,1

; Decrease contents of memory address 0x0c by 1 ,
; then skip the next command if the result is zero

goto loop1

; goto the outer loop

decfsz 0x0d,1

; Decrease contents of memory address 0x0d by 1 ,
; then skip the next command if the result is zero

goto loop2

; goto the outer loop

decfsz 0x0e,1

; Decrease contents of memory address 0x0e by 1 ,
; then skip the next command if the result is zero

goto loop3

; goto the outer loop

return

; Retrun from the Delay routine

end

; must be put at the end of the program

;*********************************************************************

This is the end of the program. Now that you understand this basic program of LED flasher, you can understand more complex programs and tricks.

Run your first program on simulator

2008-12-25T20:23:00.002+02:00

You can start to test the flasher program on the
simulator.

The simulator is a program that simulates
Microcontroller code execution and other electronic
component behavior.

One good simulator I 've tried and I recommend is Labcenter Proteus 7.

You can install it and try the hardware components and software program and debug them for run-time errors and functioning errors. All this before building the real-world application on the board. This approach is very useful and can reduce developing time and frustration and eliminate situations such as you connect the circuit and get no action at all. You then wonder
what 's wrong. And you can get lost debugging hardware and software and don 't know where to
start from.

This introduction is to show the advantages of using the simulator before building your circuit board.

Let 's get started ..........

1- Install the simulator ( Labcenter Proteus 7 ).

2- Run the program ISIS.

3- Draw the components of the flasher application as in this screen-shot.

4- After you copy the code from the previous post into a file named Flasher.ASM, add the source

file as follows ;

- From the source menu , select Define Code Generation Tools ...

- Choose the MPASMWIN from the scroll menu as the screen-shot,

- Add the source form the source menu --- > Add/Remove Source files ...

and choose the code generation tools MPASMWIN and the source file Flasher.ASM

Now you have successfully configured the source file and code generation tools for code

compilation.

5- You can now compile the program by choosing the Source menu ---> Build All .

If every thing goes right, you should get the screen

6- You will notice that a Flaher.HEX file has been generated in the working folder.

7- Now double-click on the PIC16F84A component in your design , you get the window,

Choose the Flasher.HEX and set the Processor Clock Frequency to 4MHz.

8- Now press the play button to start debugging and running the program.

Now , you see the led flashing . Congratulations !!! The program is running.

We can start to build our first real-wold circuit....

This is your first program

2008-12-10T23:49:00.001+02:00

HELLO WORLD

As in PC programming world, when you learn a new language , you start with the famous
"Hello World" program.

This program in Microcontroller is flashing a LED.

Here is the code:

;*************************************************
; Flasher.asm

list p=16f84 ; This is how you can comment
include "p16f84.inc"
org 0x00
goto start
org 0x20
start
bcf INTCON,7
movlw 0x00
bsf STATUS,5
movwf TRISB
bcf STATUS,5
again

movlw 0x80
movwf PORTB

call delay

movlw 0x00
movwf PORTB

call delay

goto again

delay
movlw 0x01
movwf 0x0e
loop3
movlw 0xfa
movwf 0x0d
loop2
movlw 0xfa
movwf 0x0c
loop1
decfsz 0x0c,1
goto loop1
decfsz 0x0d,1
goto loop2
decfsz 0x0e,1
goto loop3
return
end

;*********************************************************************

1 - Copy the above text and paste it in an empty text file and save it as Flasher.asm

2 - Install the MPLab program and search for the file MPASMWIN.EXE in its path.

3- Run the program. It looks like this :

Uncheck the case-sensitive option.

4 - Browse for the Flasher.asm file and press Assemle.

If every thing goes write , you will have the window :

Congratiulations, the assemble process is complete !!
The Flasher.hex file will be generated in the same directory of Flasher.asm

Note : If you like this blog ( or don't ) , please give me feedback by commenting. Thanks ...

Getting Started With Microcontroller Programming

2008-12-08T23:20:00.001+02:00

Resources needed for a Quick jump-start :

For the simplicity of the learning process for the beginner, I 'll start with the most famous Microchip PIC16F84 ( which was the first uC I learned )

You need to prepare these stuff before start programming :

1- The target IC ( the uC PIC 16F84A ) and its Datasheet .

2- Programming circuit ( JDM programmer ) - you need to build it your self - or buy a Microchip PIC programmer.

3 - Loader program ( ICProg ) - you 'll need it if you use JDM programmer - , but if you buy a ready-made programmer , you will have the software with it.

4 - MPLab program ( to assemble ) the programs you write in Assembley .

5 - HiTec PICC ( to compile programs in C ) .

6 - Proteus 7.0 Simulator

You can get all these stuff for FREE from the Internet.

Microcontroller Tutorial :

2008-12-07T22:57:00.001+02:00

I decided to start a Microcontroller Tutorial for beginners. If you like to learn about Microcontroller programming and embedded systems , this blog may be helpful.

Prerequisites:

All you need to know before start programming your microcontroller is basic programming knowledge, basic electronics and Boolean Algebra ( AND , OR & NOT gates ... ) .

And the first thing to know is:

What is the Microcontroller ?

It is a smart IC that can be programmed to do some task. Unlike a typical IC which does a certain function that cannot be changed, the Microcontroller function is defined by its software code written on it. you can change the code when you want and thus change its function. Smart means it can decide and take actions according to its code.

So what 's the difference between Microcontroller(uC) and Microprocessor(uP) ??

uP needs some other devices to be able to work ( BIOS, RAM, I/O Ports , ... ) all these devices are other IC 's.

Although the uP is more general purpose than than the uC , but the fact that the uC contains all the required devices in one package ( EEPROM, RAM, IO Ports , ADC , UART , etc ... ) overcomes the limited abilities and small instruction set of the uC.

It all started with the computer

2008-12-06T14:28:00.001+02:00

It all started with the computer

I started with the old computer AQUARIUS at the 80 's. It had Microsoft Basic on it. I learned programming in Basic. I then got my Pentium 1 at 90 's.

I learned Microsoft DOS and Windows. Then I learned C language.

I got AMD PC at year 2000 and I learned more about PC hardware.

I also knew about Microcontrollers ( Microchip PIC , Atmel , Renesas ) .

I programmed Microcontrollers in Assembly and C.

At 2006 I got Toshiba Satellite Notebook.

This year, I joined the Renesas HTS contest. I submitted my project " Multichannel Oscilloscope" and guess what , I had the forth honored mention.

http://www.renesasrulz.com/thread/2225;jsessionid=7AFAE50480BD5DF2D4D3F616A03277EA?decorator=print&displayFullThread=true

Embedded Software in Egypt

2008-03-12T16:06:00.050+02:00

Embedded software is one of the fast growing markets in Egypt. There are many multinational companies have opened software development offices in Egypt. There are also many companies established by Egyptian engineers. Also, there are many students and engineers who are working independently in software development for embedded systems. I have a growing company which I called MicroMonitor.

As an Egyptian engineer, I invite more companies to invest in this growing industry in Egypt.

Here is a List of embedded systems companies in Egypt :

AlManar for Electronic Systems
http://www.almanar.com.eg/index.html

avelabs
http://www.avelabs.com

avelabs LLC.
31 EL Obour Buildings,
Salah Salem St.,
Cairo, Egypt. (directions on map)
Telephone: +20 100 0668 7922
e-mail: info@avelabs.com

BadrIT ( Mobile Applications )
http://www.badrit.com/

Badr for Information Technology
2 Ibrahiem Ragi Street, Roshdie
Alexandria, Egypt
PO Box 21531

Baccah
http://www.baccah.ca/

Bird ICT ( Mobile Applications )
http://www.birdict.com/

Edge Technology - Egypt

http://www.edge-techno.com

33 Al-Madrasa Al-Qawmia st.
El-Manial - Cairo - Egypt
11451
www.edge-techno.com
info@edge-techno.com
+202 236 39351
+202 236 39351

Elsewedy Electrometer Egypt
http://www.sewedy.com.eg/

Engineering Office for Integrated Projects - EOIP
http://eoip-egypt.com/en/index.aspx?id=1

Hyper Embedded Systems
http://www.hyperes.com

Tel/Fax: (203) 544 2437
Tel: 2 0123346577

Hyper Embedded Systems
28 El-Deer Street,
Cleopatra,
Alexandria, Egypt
E-mail: sales@hyperes.com

Intelligent Services Solutions (ISS)

http://www.issholding.com

MasrTec For Embedded Systems

Name:	MasrTec for Embedded Systems
Contact :	Mr. Hassan Abdelaziz
Street :	4 Eltawhid St, From Elhadid We Elsolb St.
City :	Alexandria
Country :	Egypt
Telephone :	002-03-4396450
Mobile :	0020102544516
Fax :	002-03-4399575

Mentor Graphics Egypt

http://www.mentor.com/

78, El-Nozha St., El-Sabaa Emarat Sq.
Heliopolis,
Cairo
Egypt
Phone : ‎+20 2 24141306(6 lines)
Fax : ‎+20 2 24186945

MTSE

http://www.mtse.com.eg/En/index.html

Address : 7 Amin Annis St., 4th Section, Heliopolis, Cairo.
Tel : (02) 2903160 - (02) 4147507
Fax : (02) 2903160
Postal Code: 11341
E-mail : info@mtse.com.eg
Sales : sales@mtse.com.eg

Newport Media

http://www.newportmediainc.com

Newport Media Inc. Egypt Design Center
11 Markaz El-maalomat St., block 1157
Masaken Sheraton Heliopolis
Cairo 11361
Egypt
Phone: +20 2 2696 1700
Fax: +20 2 2696 1777

QuinDev ( Mobile Applications )

http://www.quindev.com

Saba-Basha, 38 Mostafa Abo Hiaf
Alexandria, Egypt.
(203) 585-8270 or (203) 584-5313

Sheimymicro

http://sheimymicro.freehostia.com/

SilMinds
http://www.silminds.com


	Badr Tower, 56 Misr-Helwan Road, Maadi
	Helwan
	Egypt
	11431

+202 275 3040 1

floor 6, app 14

Smartec-Group ( Training and courses )

http://smartec-group.com

152 First region - second district

6 October City

Egypt

12451

	info@smartec-group.com
	+20 2 383 634 98
	+20 2 383 561 67

SySDsoft
http://www.sysdsoft.com/

Alexandria: http://wikimapia.org/6755233/SySDSoft-Alexandria

Cairo : http://wikimapia.org/3748052/SySDSoft-s-Villa

Tahackom

http://www.tahackom.com

mohamed.mokhtar@tahackom.com

mazen.faiter@tahackom.com

Or call

0100555043
0105080492

Tarabay Egypt

http://www.tarabayegypt.com

Valeo

http://www.valeo.com/en/home/the-group/global-presence.html

http://www.valeoservice.com/html/egypt/en/

VIAS EGYPT -Valeo InterBranch Automotive Software-
SMART VILLAGE, Building B124, Tower 2, Floor 1,
Cairo-Alexandria Desert Road Km 28, PO Box 99 GIZA EGYPT
Cairo
Tel : 20 235 38 0500
Fax : 20 235 38 0600

Places to buy Microcontrollers and Electronics in Egypt:

Alexandria:

> Hamada Electronics حمادة ألكترونيكس

Naby Danial St. - Mahatat Misr شارع النبى دانيال - محطة مصر

Cairo :

> Al Amir Electronics

http://www.ekt2.com/

46 El Falaki St.
Bab El Louk, Cairo

Tel: 02-23929789, 012-9379569

Fax: 02-23929789

> Ram Electronics

http://www.ram.com.eg

http://ram-e-shop.com

23 Abd El Salam Areef St., El Falaky Electronic Center , Shop 18 , El Tahreer
Cairo, Egypt.
Tel: +202 - 3918961
Fax: +202 - 7924854

Microcontroller & Embedded Systems Courses :

ANZMA
Embedded Systems Diplomas

http://anzma.com/

Jelecom Egypt

http://www.jelecom.com

NTI National Telecommunications Institute

http://www.ntiegypt.sci.eg

In the communications electronics section

Pi-Technologies

http://www.PiTechnologies.net

Software Engineering Competence Center (SECC)

http://www.secc.org.eg/Contact%20Us.asp

Note for dear visitors :

Do you know that the main traffic source for this blog is the

Embedded Systems Companies in Egypt ?

If you know any resources ( Companies names , Websites , Institutes , Courses or Vendors ) for Embedded Systems in Egypt , just post a comment for it and I add it here. Thank you all for valuable comments and feedback.

Thanks to all visitor from all of the world.

If you want to buy kits for Embedded Systems learning , contact me.

If you have kits that you want to sell , you can also contact me.

If you need custom made kits for training purpose , please contact me.