Pinouts

Power Pins:

  • Vin - this is the power pin. Since the sensor chip uses 3 VDC for logic, we have included a voltage regulator on board that will take 3-5VDC and safely convert it down. To power the board, give it the same power as the logic level of your microcontroller - e.g. for a 5V micro like Arduino, use 5V
  • 1V8 - this is the 1.8V output from the voltage regulator, you can grab up to 50mA from this if you like
  • GND - common ground for power and logic

Data Pins

  • SCL - I2C clock pin, connect to your microcontrollers I2C clock line. Can use 3V or 5V logic, and has a 10K pullup to Vin
  • SDA - I2C data pin, connect to your microcontrollers I2C data line. Can use 3V or 5V logic, and has a 10K pullup to Vin
This guide was first published on Jan 17, 2018. It was last updated on Sep 05, 2018. This page (Pinouts) was last updated on Jan 17, 2018.