Bench power supply with adjustable voltage and current limits.
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Arduino code to control the display of measured and setpoint current and voltage to an LCD as part of my bench power supply

  • 4 analog input chanels are used to monitor the 4 signals (measured and setpoint current and voltage)
  • The values are output to a 20x4 charcter LCD display
  • There is a separate calibrate mode which displays the raw measured voltages at each pin
  • The actual voltage and current must be measured on a multimeter and divided by the display values to get the calibration factors.