OpenELAB 9-Axis IMU Module

Overview

The OpenELAB 9-Axis IMU Module combines a 3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer in a compact Qwiic-compatible breakout. Drop-in sensor for orientation, motion tracking, and AHRS.

Features

• ICM-20948 sensor (TDK InvenSense)
• 3-axis accel (±2/4/8/16g), gyro (±250/500/1000/2000 dps), mag
• I2C + SPI interface (Qwiic/Stemma connector)
• 3.3V logic, 5V tolerant on I2C pins
• Onboard LDO + level shifters
• 25.4 x 25.4 mm (1x1 inch)

Pinout

Pin	Function
VIN	3.3–5V input
GND	Ground
SDA	I2C data
SCL	I2C clock
INT	Interrupt (programmable)

Quick Start (Arduino)

#include <ICM_20948.h>
ICM_20948_I2C imu;
void setup() {
  Serial.begin(115200);
  imu.begin(Wire, 0x69);
}
void loop() {
  if (imu.dataReady()) {
    imu.getAGMT();
    Serial.print("Accel X: "); Serial.println(imu.accX());
  }
}

Applications

• Drone/robot orientation (AHRS)
• Gesture recognition
• Pedestrian dead reckoning
• Vibration monitoring

Resources

• Schematic: Schematic and 3D files will be linked here when published.
• 3D enclosure: Schematic and 3D files will be linked here when published.
• Arduino Getting Started