This project implements a Windows service which fixes Windows to correctly update the battery level for some Bluetooth devices. If the battery levels in Settings > Devices > Bluetooth & other devices don't seem to update properly, installing this service may help.
For some reason, Windows doesn't ask BLE devices to notify it when their battery levels change. This service fixes that by watching for connected BLE devices, checking if they have a GATT battery service, and if so registering for notifications for the battery level characteristic.
To run the program as a console application, open the project folder in a terminal and run
dotnet runTo run the program in Visual Studio Code's debugger, use the ".NET Core Launch (console)" launch configuration.
To install the Windows service, first open Settings > Update & Security > For developers and enable the Developer Mode switch. Then, open the project folder in a PowerShell window as administrator and run
# Builds and deploys a release build
./Deployor
# Builds and deploys a debug build
./Deploy -debugTo verify that the service is running, open "Services" from the start menu or press Windows Key + R, type services.msc, and press OK. Check that there is a row for "BLE Battery Service Subscriber" and it shows "Running" for its status.
Installer scripts are based in part on microsoft/PowerToys (license).