Gravity: 6DOF IMU Sensor for Motion & Gesture Detection (I2C / UART, Plug & Play)
- Delivery nationwide via The Courier Guy — R150 flat, free over R2,000
- Free collection from our Milnerton (Cape Town) warehouse
- Secure checkout — PayFast card payment or EFT
- Questions? WhatsApp us on +27 65 900 8570
Description
The Gravity BMI323 6DOF IMU Sensor is a plug-and-play motion tracking module combining a 16-bit 3-axis accelerometer and a 16-bit 3-axis gyroscope. Designed for Arduino, ESP32, and Raspberry Pi platforms, it features built-in gesture algorithms, I2C/UART connectivity, and dedicated GUI visualisation. It is well suited to students, hobbyists, and developers building robotics, wearable tech, and interactive motion-controlled devices.
High-rate 6-axis motion measurement
Built around the Bosch BMI323, the module delivers output data rates up to 6400 Hz with low noise and on-chip temperature compensation. It supports selectable acceleration ranges from ±2 g to ±16 g and angular rate ranges from ±125 °/s to ±2000 °/s to capture both slow tilt and rapid rotation.
Hardware-level motion and gesture detection
Integrated hardware algorithms detect step counting, single and multiple taps, tilt, free fall, and activity states directly on the sensor. Two programmable interrupt pins alert your microcontroller when events occur, removing the need for continuous host-side polling.
Plug-and-play Gravity interface and GUI
Featuring an onboard MCU and a standard PH2.0-4P connector, the module supports I2C and UART communication with wide 3.3–5 V operating voltage support. Dedicated Gravity GUI software allows live motion data inspection before writing application code.
FIFO buffering and flexible power modes
A built-in 2048-byte FIFO buffer stores motion samples to maintain continuous data collection when the host processor is busy. Developers can tailor energy consumption to their application using Sleep, Low Power, Normal, and High Performance operating modes.
Broad compatibility for interactive projects
With four selectable I2C addresses (0x4A to 0x4D) and compact 32 mm × 27 mm mounting dimensions, the sensor integrates easily into multi-device setups. It is ideal for robot tilt feedback, gesture-controlled devices, and game controllers across Arduino, ESP32, and Raspberry Pi ecosystems.
Downloads & documentation
Specifications
| Operating Voltage | DC 3.3–5 V |
| Operating Current | 3.1 mA |
| Communication Interface | I²C / UART |
| Connector Type | PH2.0-4P (Gravity pinout) / 2.54 mm pin header holes |
| I²C Addresses | 0x4A (default) / 0x4B / 0x4C / 0x4D |
| Programmable Interrupt Pins | ×2 |
| Measurement Ranges | ±2 g, ±4 g, ±8 g, ±16 g |
| ADC Resolution | 16-bit |
| ±2 g range | 16384 LSB/g |
| ±4 g range | 8192 LSB/g |
| ±8 g range | 4096 LSB/g |
| ±16 g range | 2048 LSB/g |
| Sensitivity Error | ±0.5% |
| Zero-g Offset | ±50 mg |
| High Performance / Normal mode | 12.5 Hz ~ 6400 Hz |
| Low Power mode | 0.78125 Hz ~ 400 Hz |
| Angular Rate Ranges | ±125, ±250, ±500, ±1000, ±2000 °/s |
| ±2000 °/s range | 16.384 LSB/(°/s) |
| ±1000 °/s range | 32.768 LSB/(°/s) |
| ±500 °/s range | 65.536 LSB/(°/s) |
| ±250 °/s range | 131.072 LSB/(°/s) |
| Zero-Rate Offset | ±1 °/s |
| PCB Size | 32 mm × 27 mm |
| Mounting Hole Spacing | 20 mm |
| Mounting Hole Diameter | 3.1 mm |
In the box
| Gravity: BMI323 6 DOF IMU Sensor ×1 | 1 |
| Gravity 4P Sensor Cable ×1 | 1 |
| 2.54 mm Black Single Row Pin Header – 10-Pin ×1 | 1 |
Reviews
No reviews yet — be the first to review this product.
From the same brand
Gravity: 4Pin I2C/UART Sensor Cable (10PCS)
Gravity: Analog CH4 Gas Sensor (MQ4) For Arduino
Gravity: Analog Gas Sensor (MQ2)
3xAAA Battery Holder
You might like
KY-008 650nm Laser Transmitter Module, 5V
Nano I/O Expansion Board for Arduino Nano V2.X and V3.X
1.3-Inch 128x64 Blue SPI OLED Display Module (SH1106)
