Tag: Raspberry Pi

  • Raspberry Pi Electroplating

    Copper plated coins

    Last February I set up an electroplating experiment using a Raspberry Pi 2, and the results were quite good. To do this, I filled a cup with lemon juice and connected some alligator clips to some pennies. I then ran a current across from the Pi’s GPIO pins. I wrote a small program in Node.js to control the GPIO output and to try to calculate the PWM duty cycle to get the correct target output voltage…