DFRobot Gravity: BMI323 6DOF IMU Sensor (I2C / UART, Plug & Play)

The DFRobot Gravity: BMI323 6DOF IMU Sensor is a high-performance motion sensing module based on the Bosch BMI323 IMU, combining a 3-axis accelerometer and a 3-axis gyroscope for accurate motion and orientation detection. It supports advanced onboard motion algorithms including step counting, tap detection, tilt detection, free-fall detection, and activity recognition, reducing the need for complex host-side processing. With support for both I²C and UART communication, selectable I²C addresses, and Gravity plug-and-play connectivity, it enables quick integration with Arduino, Raspberry Pi, ESP32, and other embedded platforms. The integrated 2048-byte FIFO buffer ensures reliable high-speed data transfer, while multiple power modes help optimize energy consumption. Its GUI visualization software further simplifies sensor testing and development, making it ideal for rapid prototyping, robotics, wearables, and IoT motion sensing applications.

Features:

1. Bosch BMI323 high-performance 6-axis IMU
2. 3-axis accelerometer and 3-axis gyroscope
3. Built-in step, tap, tilt, free-fall and activity detection
4. Supports I²C and UART communication
5. Integrated 2048-byte FIFO data buffer
6. Four selectable I²C addresses
7. Multiple operating modes for power optimisation
8. Compatible with Arduino, ESP32 and Raspberry Pi

Useful Link: https://wiki.dfrobot.com/sen0692/

Specifications:

1. Product Type: 6DOF IMU Sensor
2. IMU Chip: Bosch BMI323
3. Motion Sensors: 3-axis Accelerometer + 3-axis Gyroscope
4. Operating Voltage: DC 3.3–5V
5. Operating Current: 3.1mA
6. Communication Interface: I²C / UART
7. Connector Type: PH2.0-4P (Gravity) / 2.54mm Pin Header
8. I²C Address: 0x4A (Default), 0x4B, 0x4C, 0x4D
9. Programmable Interrupt Pins: 2
10. Accelerometer Resolution: 16-bit
11. Accelerometer Range: ±2g, ±4g, ±8g, ±16g
12. Accelerometer Sensitivity: 16384, 8192, 4096, 2048 LSB/g
13. Accelerometer Sensitivity Error: ±0.5%
14. Zero-g Offset: ±50mg
15. Accelerometer Output Data Rate: 12.5Hz–6400Hz (High Performance/Normal), 0.78125Hz–400Hz (Low Power)
16. Gyroscope Resolution: 16-bit
17. Gyroscope Range: ±125, ±250, ±500, ±1000, ±2000°/s
18. Gyroscope Sensitivity: 16.384–131.072 LSB/(°/s)
19. Gyroscope Sensitivity Error: ±3% (Without Self-Calibration), ±0.7% (After Self-Calibration)
20. Zero-Rate Offset: ±1°/s
21. Gyroscope Output Data Rate: 12.5Hz–6400Hz (High Performance/Normal), 0.78125Hz–400Hz (Low Power)
22. FIFO Buffer: 2048 Bytes
23. Motion Detection: Step Counting, Tap Detection, Tilt Detection, Free-Fall Detection, Activity Recognition
24. Operating Modes: Sleep, Low Power, Normal, High Performance
25. GUI Support: Yes
26. PCB Size: 32 × 27mm
27. Mounting Type: Through-Hole Mount
28. Mounting Hole Spacing: 20mm
29. Mounting Hole Diameter: 3.1mm
30. Weight: 5g

Applications:

1. Gesture-Controlled Devices
2. Wearable Motion Detection
3. Robotics Motion Feedback
4. IoT Motion Wake-Up
5. Motion Event Detection
6. Embedded Motion Sensing
7. Smart Interactive Projects

Package Includes:

1 x DFRobot Gravity: BMI323 6DOF IMU Sensor (I2C / UART, Plug & Play)