LSM303AGR click

LSM303AGR click measures acceleration and magnetic field characteristics. It carries the LSM303AGR 3D accelerometer and 3D magnetometer. LSM303AGR click is designed to run on a 3.3V power supply. It communicates with the target microcontroller over I2C interface, with additional functionality provided by the INT pin on the mikroBUS™ line.

How the click works

The acceleration and magnetic field data is contained in the onboard chip’s registers, and it can be read out through I2C communication. You'll never lose your way with the LSM303AGR click by your side. 

LSM303AGR microcontroller features

The LSM303AGR is an ultra-low-power high-performance system-in-package featuring a 3D digital linear acceleration sensor and a 3D digital magnetic sensor.

The sensor has linear acceleration full scales of ±2g/±4g/±8g/±16g and a magnetic field dynamic range of ±50 gauss.

The magnetic and accelerometer blocks can be enabled or put into power-down mode separately.

Accurate three-dimensional sensing

LMS303AGR click offers precise three-dimensional magnetic sensing. It detects the magnetic field in x,y, and z direction. With the low power consumption, it's ideally suited for small IoT projects and hand-held devices.


 

Specifications

Pinout diagram

This table shows how the pinout on LSM303AGR click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
	NC	1	AN	PWM	16	NC
	NC	2	RST	INT	15	INT	Magnetometer interrupt/data-ready signal
	NC	3	CS	TX	14	NC
	NC	4	SCK	RX	13	NC
	NC	5	MISO	SCL	12	SCL	I2C serial clock
	NC	6	MOSI	SDA	11	SDA	I2C serial data
Power supply	+3.3V	7	3.3V	5V	10	NC
Ground	GND	8	GND	GND	9	GND	Ground

Programming

Code examples for LSM303AGR click, written for MikroElektronika hardware and compilers are available on Libstock.

Code snippet

The following code snippet shows the initialization and reading of the sensor.

01 LSM303AGR_disableAcc();
02 LOG( "Accelerometer disablednr" );
03 LSM303AGR_setPowerMode( LSM303AGR_MAG, LSM303AGR_LOW_POWER );
04 LOG( "Magnetometer power mode set to low-powernr" );
05 LSM303AGR_setMeasureMode( LSM303AGR_CONT );
06 LOG( "Magnetometer measuring mode set to continuousnr" );
07 LSM303AGR_SetDataRate( LSM303AGR_MAG, 0x00 );
08 LOG( "Magnetometer data rate set to 10Hznr" );
09 LSM303AGR_readOutput( LSM303AGR_MAG, output );
10 LOG( "Reading magnetometer outputnr" );
11 Delay_ms( 200 );
12 WordToHex( output[0], txt );
13 LOG( "X: " );
14 LOG( txt );
15 WordToHex( output[1], txt );
16 LOG( "nrY: " );
17 LOG( txt );
18 WordToHex( output[2], txt );
19 LOG( "nrZ: " );
20 LOG( txt );
21 LOG( "nr" );

Downloads

 LSM303AGR click schematic