PIC based Oscilliscope

I have seen many examples of microcontroller oscilliscopes on the web and have had an itch to build one myself.  In order to accomplish this my initial thought is to sample an input (ADC) at consistant time increments and then display the waveform on a graphic lcd display.  If I want to change the time scale I can just change the rate of time between samples, and if I want to increase the voltage scale I ca ...

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