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.
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