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10 DOF IMU Sensor (C) User Manual

V1.1, Jan. 10 2017

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10 DOF IMU Sensor (C)

User Manual

1. Feature

Driver IC

MPU9255

(3-axis

accelerometer

3-axis gyroscope

3-axisdigital

compass)

Built-in 16-Bit AD convertor

Gyroscope full-scope range: ±250, ±500, ±1000, ±2000°/sec

Accelerometer full-scale range: ±2, ±4, ±8, ±16g

Compass full-scale rage：±4800uT

BMP280

(Digtal pressure

sensor)

Built-in temperature sensor with temperature measurement

compensation

Pressure measuring range: 300~1100hpa (+9000m ~ -500m

relating to sea level)

Accuracy: ±0.12hPa(±1m) (700hPa~900hPa,25°C~40°C)

Working

voltage

3.3V，5V

Supported

interface

I2C

Dimensions

31.2mm*17mm

Table 1: Product features

2. Applications

 Quadcopter;

 Action game controller;

 Indoor inertial navigation;

 Self-balancing Robot;

 Altimeter;

 Industrial measuring instrument.

Summary of content (5 pages)

PAGE 1
share awesome hardware 10 DOF IMU Sensor (C) User Manual 10 DOF IMU Sensor (C) User Manual 1.
PAGE 2
share awesome hardware 10 DOF IMU Sensor (C) User Manual 3. Interface Descriptions Pin No. Symbol Descriptions 1 VCC 3.3V or 5V power supply 2 GND Supply ground 3 SDA I2C serial bus data 4 SCL I2C serial bus clock input 5 INT MPU9255digital interrupt output 6 FSYNC MPU9255frame synchronous signal Table 2: Interface descriptions 4. How to use We will illustrate the usage of the module with an example of working with a STM32 series’ development board.
PAGE 3
share awesome hardware 10 DOF IMU Sensor (C) User Manual 10 DOF IMU Sensor. For detail operations as below: A. Flatting 10 DOF IMU Sensor on the horizontal position and no motion is allowed,when serial terminal received the stable data from USART1, then press JOYSTICK button down, LED1 is flashing and both of LED2 and LED3 turn off at the mean time. B.
PAGE 4
share awesome hardware 10 DOF IMU Sensor (C) User Manual Altitude Temperature Altitude value (m) Temperature value (℃) Table 4: The meanings of the serial output 5. Parameter calibration and calculation 5.1 Altitude calibration For your first time to use 10 DOF IMU Sensor, you may find that there is a large difference between the altitude value outputted by the module and the actual altitude.
PAGE 5
10 DOF IMU Sensor (C) User Manual share awesome hardware 5.3Gyroscope angular velocity calculation Gyroscope angular velocity calculationAngular velocity measured by the program is in the unit of LSB (Least Significant Bit), however it is usually translated into the unit of angular velocity (°/sec) in practical application. In the sample code of the module, the default setting is FS_SEL=2, of which the corresponding measurement range is 32.