ICM-20948 9-DoF IMU Module, Accelerometer, Gyro and Magnetometer, STEMMA QT/Qwiic

When you want to sense orientation using inertial measurements, you need an Inertial Measurement Unit, and when it comes to IMUs, the more DoFs, the better! The ICM20948 from Invensense packs 9 Degrees of freedom into a teeny package, making it a one-stop-shop for all the DOFs you need! Within its svelte 3x3mm package, there is not just one MEMS sensor die like your common sensors, but two sensor dies! The ICM20948 pair’s Invensense’s MEMS 3-axis accelerometer and gyro with the AK09916 3-axis magnetometer from Asahi Kasei Microdevices Corporation. This chip is considered TDK's 'upgrade' for the popular (and now discontinued) MPU-9250 - but please note it is not exactly code compatible! All 9 axes of measurement are made available thanks to a crew of 16-bit Analog to Digital Converters, diligently converting the raw analog signals from the MEMS sensors to digital readings that are accessed via I2C. (Note that we expose the SPI interface but the magnetometer is I2C only!) Each of the sensors has the quality specs you would expect from such a sensor. Just see what the datasheet has to say: • 3-Axis Gyroscope with Programmable FSR of ±250 dps, ±500 dps, ±1000 dps, and ±2000 dps • 3-Axis Accelerometer with Programmable FSR of ±2g, ±4g, ±8g, and ±16g • 3-Axis Compass with a wide range to ±4900 µT Now that’s a handy and capable team of sensors, ready to help orient your project in the right direction! Like any high-performance device, the ICM20948 can a bit particular about how it needs to be worked with. Unlike the pick and place machines that normally handle these sensors, most of us humans can’t readily take a little guy like the ICM20948 and plop it into our circuit; it’s small! What’s more, the ICM20948 runs on 1.8V which is increasingly common for device manufacturers but isn’t hardly common for makers, learners, prototypes, or the like. With that in mind, we’ve put the ICM20948 on a breakout with a 1.8V voltage regulator as well as level shifting circuitry to allow your 3.3V device such as a Feather M4 or Raspberry Pi, or a 5V device such as the for Arduino Uno.