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Found 1 result

  1. Hi, I've been working on replacing the two 10k potentiometers for voltage and current control with two rotary encoders. The idea is to get (theoretically) arbitrarily fine control via software on an ATMega328P microcontroller. The microcontroller would also be in charge of outputting desired and measured voltage and current values to an LCD. Since I haven't found any suitable digital potentiometers I figured I'd simply generate the analog voltages for the non-inverting inputs of U2 and U3. U2 gets a voltage between 0 and 10V using the uC's PWM output, a low pass filter and an op amp. Poi
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