silicon-accelerometer

Read accelerometer data from Apple Silicon Macs via Bun FFI.

A TypeScript wrapper around a C implementation based from apple-silicon-accelerometer, exposing x, y, z, and timestamp readings through a simple class interface.

Video demo

silicon-accelerometer-demo.webm

Requirements

• macOS, Apple Silicon (arm64)
• Bun

Install

bun add silicon-accelerometer

Usage

import { Accelerometer } from "silicon-accelerometer";

const accel = new Accelerometer();
accel.start();

const reading = accel.read();
// { x: 0.01, y: -0.03, z: 9.81, timestamp: 1234567890n }

accel.stop();

read() returns null if no valid sample is available. stop() is called automatically on process exit.

API

Method	Description
start()	Start the accelerometer. Throws if already started.
stop()	Stop and release the native library. Safe to call multiple times.
read()	Return { x, y, z, timestamp } or null if no valid sample.

Build

To recompile the native dylib:

bun run build:dylib

License

MIT