Sensor Usage

Overview of device sensors utilized via Expo APIs.

Below are the available sensors accessed through the expo-sensors module. Please note these are mostly all supported in modern devices but may cause issues on commodity or old devices that do not have the appropriate sensors.

Sensor Description
Accelerometer Measures acceleration along the x, y, and z axes. Useful for detecting motion or orientation.
Gyroscope Measures the rate of rotation around the x, y, and z axes. Useful for detecting turns or spins.
Magnetometer Measures magnetic field strength. Often used to compute compass headings.
Barometer Measures atmospheric pressure. Can estimate altitude or detect elevation changes.
DeviceMotion Provides processed orientation and motion data by fusing accelerometer, gyroscope, and magnetometer.
Pedometer Counts steps using motion data. iOS supported; Android support is limited.
LightSensor Measures ambient light levels. Experimental and not supported on all devices.

Last modified July 19, 2025: Update _index.md (79adc70)