Description
Product Overview
The GY-89 10DOF Sensor Module is a comprehensive motion-tracking board that integrates three high-performance sensors on a single compact PCB. This module combines a 3-axis gyroscope (L3GD20) , a 3-axis accelerometer and 3-axis magnetometer (LSM303D) , and a barometric pressure/temperature sensor (BMP180) , providing a complete 10-degree-of-freedom (10DOF) sensing solution for advanced motion and environmental monitoring applications .
The GY-89 is widely used in quadcopters, self-balancing robots, GPS navigation systems, head-tracking devices, and weather stations . All sensors communicate via a shared I2C bus, requiring only two data lines (SDA and SCL) to connect to your microcontroller. The module operates on 3V to 5V power and includes onboard logic-level conversion, making it directly compatible with both 3.3V and 5V systems such as Arduino, ESP32, ESP8266, Raspberry Pi, and STM32 .
Key Features
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10 Degrees of Freedom (10DOF): Combines gyroscope (3 axes), accelerometer (3 axes), magnetometer (3 axes), and barometer (1 axis) on one board .
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L3GD20 3‑Axis Gyroscope: Digital angular rate sensor with user‑selectable full scales of ±250, ±500, or ±2000 dps. Output is 16‑bit per axis .
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LSM303D 6‑Axis Sensor: Integrates a 3‑axis accelerometer (selectable ±2/±4/±6/±8/±16g) and a 3‑axis magnetometer (selectable ±2/±4/±8/±12 gauss) on a single chip .
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BMP180 Barometric Pressure/Temperature Sensor: High‑precision pressure sensor with 24‑bit output. Pressure range: 300–1100 hPa; altitude resolution: approximately 0.25m .
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Single I2C Interface: All sensors share the same I2C bus, requiring only 2 pins (SDA, SCL) to communicate with all three sensors .
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Wide Voltage Compatibility: Operating voltage range of 2.5V to 5.5V, compatible with both 3.3V and 5V microcontrollers .
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Dual Communication Interfaces: Supports both I2C and SPI communication protocols (selected via chip select pins) .
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Compact Form Factor: Dimensions of approximately 22mm × 17mm, ideal for drones and space‑constrained projects .
Technical Specifications
| Parameter | Operating Value |
|---|---|
| Supply Voltage | 2.5V – 5.5V DC |
| Supply Current | 8 mA |
| Communication | I2C or SPI (I2C typically used) |
| Gyroscope (L3GD20) | ±250, ±500, or ±2000 dps (16‑bit output) |
| Accelerometer (LSM303D) | ±2, ±4, ±6, ±8, or ±16 g (16‑bit output) |
| Magnetometer (LSM303D) | ±2, ±4, ±8, or ±12 gauss (16‑bit output) |
| Barometer (BMP180) | 300 – 1100 hPa, 24‑bit output |
| Pressure Resolution | 0.06 hPa (approx. 0.5m altitude resolution) |
| Dimensions | 22mm × 17mm |
| Weight | Approx. 1g (without headers) |
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