This tiny 10-DOF GY-91 sensor module is more compact than GY-80 module. The module uses combination of Single chip MPU-9250 with built-in 3 axis Gyro, 3axis Accelerometer, digital Compass and BMP280 improved barometric pressure sensor.

The MPU-9250 is the company’s second generation 9-axis MotionTracking device for smartphones, tablets, wearable sensors, and other consumer markets. Improvements include supporting the accelerometer low power mode with as little as 6.4µA of and it provides improved compass data resolution of 16-bits (0.15 µT per LSB). The full scale measurement range of ±4800µT helps alleviate compass placement challenges on complex pcb’s.

Specifications:

• Sensor Chips: MPU-9250 + BMP280
• Interface: standard IIC / SPI communications protocol
• Operating Voltage range: 3.0V – 5.0V (on-board low dropout regulator)
• Module size 14.3mm * 20.5mm (More compact than GY-80)
• Resolution: 16bit AD converter, 16-bit data output
• Gyroscopes range: ± 250, 500, 1000, 2000 ° / s
• Acceleration range: ± 2 ± 4 ± 8 ± 16g
• Field range: ± 4800uT
• Pressure range: 300-1100hPa
• 2.54mm pitch