LSM303AGRTR (STMicroelectronics) 3-axis accelerometer + 3-axis magnetometer combined MEMS sensor

1. 3-axis acceleration measurement: detects gravity, tilt, vibration and shock; supports tilt calculation, free-fall detection, motion wake-up and double-tap detection.

2. 3-axis magnetometer (geomagnetic sensor): measures the Earth’s magnetic field. Combined with acceleration data, it implements a **tilt-compensated electronic compass to calculate heading angle**.

3. Built-in **16-bit ADC** with digital output. The accelerometer and magnetometer can be powered on/off independently and put into separate sleep modes for controllable power consumption.

4. Programmable interrupts available: free-fall, motion trigger, and magnetic field detection interrupts.

5. Integrated 32-level FIFO, on-chip self-test and on-chip temperature sensor to reduce MCU workload.

6. Communication interfaces: I2C (up to 3.4 MHz high-speed) + 3-wire SPI, dual interface options.

Manufacturer: STMicroelectronics*

 Key Parameters

Package: LGA-12, ultra-small 2.0×2.0 mm surface-mount package

Supply voltage: 1.71V ~ 3.6V, suitable for battery-powered devices

Selectable acceleration full scale: ±2g / ±4g / ±8g / ±16g

Magnetometer full scale: **±50 Gauss (Gs)**

Power consumption: typical 250μA in high-resolution combined mode; minimum 60μA in low-power combined mode

Operating temperature: -40℃ ~ +85℃

Output: 16-bit digital data

Environmental compliance: RoHS / ECOPACK

 Applications

Important note: **No gyroscope. It only provides tilt and geomagnetic heading, and cannot perform inertial navigation.**

1. Consumer electronics: smart watches, fitness bands, phone electronic compasses, screen rotation control

2. Handheld devices: handheld survey instruments, portable north-finding units, handheld compasses (low-cost solution)

3. IoT / low-power devices: asset tracking tags, attitude sensing, vibration monitoring

4. Robotics: simple heading for AGVs, gimbal tilt measurement, vehicle attitude monitoring

5. VR/AR remote controllers, game controllers, pedometers

6. Industrial simple attitude monitoring and tilt alarm

LSM6DSV32XTR

LSM303AGRTR 

LSM6DSOETR3

ASM330LHHTR 

LIS2DWLTR 

LSM6DSK320XTR