You can buy a refactored and much more stable version of this plugin with better architecture on UE Marketplace. This repo is not maintained any more.

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Unreal Engine 4 BLE (Bluetooth Low Enegy) Plugin

This is an Unreal Engine plugin that allows to scan for BLE devices, connect to one of them and performn basic operations like subscribe/read/write.

This is what the plugin is able to do:

• Works in Unreal Engine 4.22 for both iOS and Android platforms
• Check if bluetooth Low Engergy is supported on the device
• Check if bluetooth is enabled
• Enable/disable bluetooth" (Android only)
• Scan for bluetooth devices that have a specific service running
• Connect to one of the found BLE devices from within the Unreal Engine app
• Subscribe to specific characteristics to receive notifications
• Read/Write characteristic values

For blueprint examples please refer to the Wiki page.