Breakout pins.

Pin Label

Pin Function

Input/Output

Notes

3.3V

Power Supply

Input

3.3V on Qwiic system.

GND

Ground

Input

Ground

SDA

I C Data Signal

Bi-directional

Bi-directional data line.

SCL

I C Clock Signal

Input

Master-controlled clock signal.

Jumpers

There are two jumpers on this board. The first, connects pull-up resistors to the I C bus and the other connects the

LED and I2C jumper pads.

Name

Description

Usage

I2C

I C Pull-Up Resistors

Opening these disables theI C pull-up resistors used for I C communication. If

multiple I C devices are being used, these pull-ups should be disabled on all

but one device. If these pins (SDA/SCL) are being used for other purposes

(UART, LEDs, GPIO), the pull-up resistors should usually be disabled.

LED

Enable/Disable LED

Cut this jumper to disconnect the LED and save power!

2

2

2

2

2

2

2