BLE GATT Toolkit

Build BLE for Android targets without writing your own JNI bridge. This plugin gives you a clean, event-driven C# API for integrating BLE peripherals into production projects.

Its C# API architecture is simple and practical:

• BleClient handles initialization and queues BLE calls until the bridge is ready
• BleUnityCallbackReceiver receives Android callbacks from UnitySendMessage(...)
• BleRouter parses callback messages and raises Unity events
• BleDevice provides per-device methods for connection, notifications, GATT discovery, writes, and error handling

With this asset, you can:

• Scan for BLE devices
• Filter scans by device name
• Connect and disconnect by address
• Track connection state changes
• Discover GATT services and characteristics
• Enable and disable notifications
• Write characteristic data with or without response
• Request MTU changes
• Handle reconnect workflows
• Work with Unity-friendly global and per-device events

This plugin is a strong fit for wearables, microcontrollers, haptics, robotics, sensors, controllers, BLE accessories and other BLE peripherals.

It also includes useful production-focused behavior:

• Initialization retry logic
• Queued BLE operations before startup completes
• Global logging and error routing
• Cached device state by MAC address
• Safe no-op behavior outside Android runtime

Important notes:

• Android only
• Runtime Android BLE permissions must be handled by your project
• The current built-in scan helper focuses on partial-name filtering
• Includes a comprehensive example file to make integration easier and a documentation file explaining everything needed.