SparkFun 9DoF IMU Breakout - ICM-20948 (Qwiic)

The SparkFun 9DoF IMU Breakout - ICM-20948 (Qwiic) is a sophisticated, Qwiic-enabled device that combines the advanced features of Invensense's ICM-20948. This low-powered, I²C and SPI enabled 9-axis motion tracking device is perfect for smartphones, tablets, wearable sensors, and IoT applications. The breakout board includes a logic shifter and broken out GPIO pins for versatile motion sensing applications. It also allows solder-free connection to your system using the Qwiic system, while also offering 2.54mm-spaced pins for breadboard users.

The ICM-20948 includes a 3-Axis Gyroscope with four selectable ranges, a 3-Axis Accelerometer with four selectable ranges, and a 3-axis magnetometer with an FSR to ±4900µT. A standout feature is the Digital Motion Processor that efficiently computes motion sensing algorithms, ensuring optimal performance of the sensors. All the ICM-20948 pin functionality is broken out to GPIO and labeled I²C on the front, SPI on the back for easy identification.

It's important to note that the I²C address of the ICM-20948 is 0x69 and can be jumper selected to 0x68. A multiplexer/Mux is required to communicate to multiple ICM-20948 sensors on a single bus. If you need to use more than one ICM-20948 sensor, consider using the Qwiic Mux Breakout.

The SparkFun Qwiic Connect System is a robust ecosystem of I²C sensors, actuators, shields, and cables that simplify prototyping and reduce errors. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector, which minimizes required PCB space and prevents incorrect connections due to polarized connections.

Key features of the SparkFun 9DoF IMU Breakout - ICM-20948 (Qwiic) include a supply voltage of 1.95 V to 3.6 V, Triple-axis MEMS gyroscope and accelerometer with user-programmable full-scale ranges, a Triple-axis silicon monolithic Hall-effect magnetic sensor with full scale measurement range to ±4900 µT, I²C at up to 100 kHz (standard-mode) or up to 400 kHz (fast-mode) or SPI at up to 7 MHz for communication with registers, an on-board digital motion processor (DMP), and a digital-output temperature sensor. The device also has 2x Qwiic Connection Ports and an I²C Address of 0x69 (0x68 with Jumper).

Supporting documents for the SparkFun 9DoF IMU Breakout - ICM-20948 (Qwiic) include a schematic, Eagle Files, a Hookup Guide, a Datasheet (ICM-20948), an Arduino Library, Python Support (Qwiic_Py), and a GitHub Hardware Repo.