6DOF IMU 2 click

The IMU consists of a state-of-the-art 3-axis, low-g accelerometer, and a low-power 3-axis gyroscope, designed for 6-axis and 9-axis applications. The BMI160 also includes built-in power management unit (PMU) for advanced power management and power-saving modes, as well as allocated FIFO buffer of 1024 bytes for handling external sensor data.

6DOF IMU 2 click communicates with the target MCU through the I2C or SPI bus (user-selectable), with additional functionality provided by the INT pin (for enhanced autonomous motion detection).
The board is designed to use a 3.3 power supply only.

Specification

Features and usage notes

• Integrated 1024 byte FIFO buffer
• Fast start-up mode
• Additional secondary high speed interface for OIS applications
• Hardware sensor time-stamps for accurate sensor data fusion
• Motion detection and tap or double tap sensing
• I2C and SPI interfaces
• Very low power consumption: typ. 925 μA
• 3.3V Power supply
• 2.5 × 3.0 × 0.83 mm 3 LGA package

Programming

Code snippet demonstrates initialization of the 6DOF IMU 2, reading gyro and accel data, and printing them out on TFT.

 1 void main()
2 {
3
4     Display_Init();
5     I2C1_Init();
6     dof6_hal_init(BMI160_I2C_ADDRESS );
7     dof6_sensor_config(accel_normal , gyro_normal);
8
9     while (1)
10     {
11         acc_x=dof6_get_acc_x();
12         acc_y=dof6_get_acc_y();
13         acc_z=dof6_get_acc_z();
14         gyro_x=dof6_get_gyr_x();
15         gyro_y=dof6_get_gyr_y();
16         gyro_z=dof6_get_gyr_z();
17         display_data();
18         Delay_ms(50);
19     }
20 }