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 microcontroller 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 - I2C clock pin, connect to your microcontroller's I2C clock line. This pin is level shifted so you can use 3-5V logic, and there's a 10K pullup on this pin.
  • SDA - I2C data pin, connect to your microcontroller's I2C data line. This pin is level shifted so you can use 3-5V logic, and there's a 10K pullup on this pin.
  • STEMMA QT - These connectors allow you to make I2C connections to dev boards with STEMMA QT connectors or to other things with various associated accessories.

I2C Address Pins

  • ADM - LIS3MDL Magnetometer I2C address pin. Pulling this pin high or bridging the solder jumper on the back will change the I2C address from 0x1C to 0x1E.
  • AGAD - LSM6DS33 Accel/Gyro I2C address pin. Pulling this pin high or bridging the solder jumper on the back will change the I2C address from 0x6A to 0x6B.

Other Pins

  • INT1 -This is the primary interrupt pin for the Accel/Gyro. You can setup the LSM6DS33 to pull this low when certain conditions are met such as new measurement data being available. Consult the datasheet for usage.
  • INTM - This is the primary interrupt pin for the Magnetometer. You can setup the LIS3MDL to pull this low when certain conditions are met such as a value exceeding a threshold. Consult the datasheet for usage.
  • DRDY - The data ready pin. When measurement data is available the sensor will pull this pin low.

This guide was first published on Jun 17, 2020. It was last updated on Jun 17, 2020.

This page (LSM6DS33 + LIS3MDL Pinouts) was last updated on Oct 12, 2021.

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