GPIO Wiring

There are 3 “Sensor Pis”, and each will be attached to a GPIO button that will pass in signals to its Pi, as well as an LED strip and a Voltage Level Shifter, which toggles the monitor power when the RPi boots.

Repeat this process for each “sensor pi”.

For reference, here is the standard pintout of the Raspberry Pi:

Raspberry Pi Pinout

Images of the wiring can be seen below:

Raspberry Pi Pin Header Wiring
The following pinout should be followed:

  • Board Pin #1, 3v3 Power –> Level Shifter Input Wire

  • Board Pin #3, BCM2/GPIO2/SDA –> Button Input Wire

  • Board Pin #6, GND –> Level Shifter Ground Wire

  • Board Pin #12, BCM18/GPIO18/PWM0 –> LED Signal Wire

  • Board Pin #39, GND –> Button Ground Wire