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.
Page last edited March 08, 2024
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