Arduino Due and BMI160 sensor example

The BMI160 is a small, low power, low noise 16-bit inertial measurement unit designed for use in mobile applications like augmented reality or indoor navigation which require highly accurate, real-time sensor data.

In full operation mode, with both the accelerometer and gyroscope enabled, the current consumption is typically 950 μA, enabling always-on applications in battery driven devices. It is available in a compact 14-pin 2.5 x 3.0 x 0.8 mm³ LGA package.

Parameter	Technical data
Digital resolution	Accelerometer (A): 16 bit Gyroscope (G): 16bit
Measurement ranges (programmable)	(A): ± 2 g, ± 4 g, ± 8 g, ± 16 g (G): ± 125°/s, ± 250°/s, ± 500°/s, ± 1000°/s, ± 2000°/s
Sensitivity (calibrated)	(A): ±2g: 16384LSB/g ±4g: 8192LSB/g ±8g: 4096LSB/g ±16g: 2048LSB/g (G): ±125°/s: 262.4 LSB/°/s ±250°/s: 131.2 LSB/°/s ±500°/s: 65.6 LSB/°/s ±1000°/s: 32.8 LSB/°/s ±2000°/s: 16.4 LSB/°/s
Zero-g offset (typ., over life-time)	(A): ±40mg (G): ± 10°/s
Noise density (typ.)	(A): 180 μg/√Hz (G): 0.008 °/s/√Hz
Bandwidths (programmable)	1600 Hz … 25/32 Hz
Digital inputs/outputs	SPI, I²C, 4x digital interrupts
Supply voltage (VDD)	1.71 … 3.6 V
I/0 supply voltage (VDDIO)	1.2 … 3.6 V
Temperature range	-40 … +85°C
Current consumption – full operation – low-power mode	950 μA 3 μA
FIFO data buffer	1024 byte
LGA package	2.5 × 3.0 × 0.8 mm³
Shock resistance	10,000 g x 200 μs

Connection

Arduino Due	Module Pin
3v3	3v3
Gnd	Gnd
SDA/21	SDA
SCL/20	SCL

Arduino Due Module Pin

Code

This example used the following library – https://github.com/hanyazou/BMI160-Arduino

[codesyntax lang=”cpp”]

#include <BMI160Gen.h>

const int select_pin = 10;
const int i2c_addr = 0x69;

void setup() {
Serial.begin(9600); // initialize Serial communication
while (!Serial); // wait for the serial port to open

// initialize device
//BMI160.begin(BMI160GenClass::SPI_MODE, select_pin);
BMI160.begin(BMI160GenClass::I2C_MODE, i2c_addr);
}

void loop() {
int gx, gy, gz; // raw gyro values

// read raw gyro measurements from device
BMI160.readGyro(gx, gy, gz);

// display tab-separated gyro x/y/z values
Serial.print("g:\t");
Serial.print(gx);
Serial.print("\t");
Serial.print(gy);
Serial.print("\t");
Serial.print(gz);
Serial.println();

delay(500);
}

[/codesyntax]

Output

Open the serial monitor

g: 90 86 9
g: 69 69 40
g: 35 97 -9
g: -7370 3961 -1786
g: -31829 -2652 32767
g: -3221 25109 32767
g: 26020 31878 -26125
g: -20332 -21698 -15712
g: -7297 3463 -1723
g: -1137 1521 420
g: -203 305 96
g: 144 -102 54
g: 77 116 35

Links

https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BMI160-DS000-07.pdf

BMI160 Latest Stance Accelerometer Gyroscope module 6 Dof inertial Measurement Sensors