Arduino Vacuum Gauge Display

Initial testing. Ignore the humidity sensor, that was for something else. The vacuum gauge outputs 0-10VDC. This had to be changed to a 0-5VDC range using a potential divider so it was compatible with the Arduino. Initial build used a 10k pot in place of a vacuum gauge to make it simpler. The OLED screen simply plugs in over the arduino which made for a nice compact board. A custom pcb would've looked nicer ...

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