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Hello Andy - am trying to recreate this Project with RPI3 and also i have bought the octasonic breakout board from Tindie store.Can you please share with me the connection Diagram. I am confused with the detailed write vs your Video. In the Video 5V input is coming from RPi3 5V port and going to Logic level shifter HV Side.. however in the write it says 5V of RPI should be connected to the lower left end of AVR pins.can you please share wiring diagram and pictures are not clear with Wiring.
RPi 3 Starboard / Particle Generator