Pinouts

Power Pins

  • Vin - this is the power pin. Since the sensor chip uses 3 VDC, 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
  • 3Vo - this is the 3.3V output from the voltage regulator, you can grab up to 100mA from this if you like
  • GND - common ground for power and logic

I2C Logic Pins

  • SCL - this is the I2C clock pin, connect to your microcontroller's I2C clock line.
  • SDA - this is the I2C data pin, connect to your microcontroller's I2C data line.

Alert Pins

  • A1 - A4 - Alert 1 - Alert 4 output pins

Address Pin

  • ADR - Allows for setting I2C address
This guide was first published on Jun 12, 2019. It was last updated on Jun 12, 2019. This page (Pinouts) was last updated on Jul 19, 2019.