The default I2C address is 0x5C.

Power Pins

• VIN - this is the power pin. 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 - I2C clock pin, connect to your microcontroller's I2C clock line. This pin 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 can use 3-5V logic, and there's a 10K pullup on this pin.
• STEMMA QT - These connectors allow you to connect to dev boards with STEMMA QT (qwiic) connectors or to other things with various associated accessories

Interrupt Pin

• INT - This is the interrupt pin. The default state is active high. You can change the state in software.

Power LED and LED Jumper

• Power LED - In the upper left corner, above the STEMMA connector, on the front of the board, is the power LED, labeled on. It is a green LED.
• LED jumper - This jumper, labeled LED on the board silk, is located on the back of the board, in the upper right corner. Cut the trace on this jumper to cut power to the "on" LED.

SA0 Jumper

• SA0 - On the back of the board, towards the center, is the I2C address jumper. It is labeled SA0 on the board silk. If you solder this jumper closed, you'll change the I2C address from the default 0x5C to 0x5D.