From f2dd58393e6bdcea27a261a44508853e082e80d9 Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Tue, 13 Jan 2026 21:44:13 +0000
Subject: [PATCH] feat: introduce promise-based API for async methods

This commit introduces a new Promise-based API for all asynchronous methods in the `i2c` class. The new methods are suffixed with `Async` to ensure backward compatibility with the existing callback-based API.

The following methods have been added:
- `scanAsync`
- `openAsync`
- `writeAsync`
- `writeByteAsync`
- `writeBytesAsync`
- `readAsync`
- `readByteAsync`
- `readBytesAsync`
- `closeAsync`

The `examples/accelerometer/accel.js` example has been updated to use the new `async/await` syntax with the Promise-based API.