LSM303AGR is a 6-axis MEMS sensor from STMicroelectronics, integrating 3-axis accelerometer and 3-axis magnetometer, commonly known as electronic compass or attitude sensor.

Key Specifications

• Brand: STMicroelectronics

• Function: 6-axis combo sensor integrating 3-axis accelerometer + 3-axis magnetometer

• Accelerometer: Programmable full-scale ranges: ±2g / ±4g / ±8g / ±16g

• Magnetometer: ±50 Gauss magnetic field measurement range

• Data Output: High-precision 16-bit digital output

• Communication Interface: I²C (preferred) / SPI

• Operating Voltage: 1.71V ~ 3.6V, ideal for battery-powered products

• Ultra-Low Power Consumption: ~0.9μA for accelerometer, ~11μA for magnetometer

• Package: LGA-12, compact dimension 3×3×1mm

• Operating Temperature: -40℃ ~ +85℃

2. Main Functions

Core function: Detect attitude, heading, motion and tilt to equip devices with spatial perception capability.

• Attitude & tilt detection: Identify flat, upright, left/right tilt status; applied for smart lamps, remote controllers & tablet screen auto-rotation.

• Electronic compass: Tilt-compensated compass combined with accelerometer to output north/south/east/west heading, used for outdoor gadgets, drones and handheld terminals.

• Motion & gesture recognition: Tap, flip and shake trigger wake-up or function switch for smart speakers, smart bands and remotes.

• Free-fall detection: Activate equipment protection when dropping down for hard disk and wearable electronics.

• Power-saving wake-up: Sleep at static status and wake up upon movement for low-power IoT modules.

3. Application Fields

Consumer Electronics

• Smart speaker: Gesture control (tap to switch songs, flip to mute)

• Smart band & watch: Pedometer, attitude detection and digital compass

• Remote controller: Motion sensing, power on/off via flipping

• Tablet & game console: Screen rotation and motion control

Industrial & IoT

• Smart streetlight & sensor node: Tilt monitoring and status reporting

• Asset tracker: Motion wake-up, anti-tamper and attitude monitoring

• Drone & RC aircraft: Heading reference and auxiliary attitude control

• Smart home: Door/window status & human motion detection

Automotive (Non-safety applications)

• Car navigation & dashcam: Direction positioning and screen rotation

• In-vehicle smart devices: Motion-triggered wake-up and attitude sensing

4. Summary Slogan (for customer & social media)

LSM303AGR from ST is a low-power 6-axis attitude sensor combining 3-axis accelerometer and 3-axis magnetometer in LGA-12 package. It supports electronic compass, tilt/attitude measurement, gesture recognition and motion wake-up, widely adopted in smart speakers, wearables, IoT and outdoor equipment.