Arduino Waveform Generator

Waveform generators (also called function generators) are useful for testing and debugging circuits. I often use them to test the frequency response of electronics components like op amp and sensors. This waveform generator is powered by an Arduino. It outputs four waveshapes: sine, triangle, pulse, and saw, each waveshape ranges in frequency from 1Hz-50kHz. The frequency, pulse width, and overall amplitude (gain) of the waveforms is controlled by three potentiometers. I’ve also included (optional) indicator LEDs that let you know which type of wave is currently being sent to the output.”

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