adabru
Microbit Bluetooth UART service data reading problem
Hi @adabru, as i wrote in a previous post i managed to connect unity and then hololens 2 with a microbit and read its internal temperature sensor value by subscribing to the respective ServiceId and CharacteristicId. But now i have a second temperature sensor that i have connected to a microbit's pin and wrote a program for the microbit in order for the temperature value of the sensor (a simple number) to be transmitted though the Bluetooth Uart service which i enabled on the microbit. Although i managed to send a set of characters from Unity to the microbit , through your BlewinrtDll project , by using the Demo's Write function , which uses BleApi.SendData, i cannot read any data coming from the microbit. It seems to me that when unity polls data from the CharacteristicId {6e400002-b5a3-f393-e0a9-e50e24dcca9e} of the Bluetooth UART Service nothing comes out. Subscribing to this service doesnt seem to detect value changes when using your demo(?) The funny thing is that i can read the values coming from microbit through this bluetooth Uart service when using an android phone ,with a custom made application with appinventor and that the Microsoft 's Sample BluetoothLE app from Hololens 2 can subscribe to this CharacteristicId and seems to be detecting value changes but cannot recognize the data format. I would appreciate any ideas . Again thank you very much.
After some research it seems that for that particular bluetooth uart service microbit sends raw binary data. Maybe unity polls for incoming data that are not in raw binary format
Hi nmitrak, binary format should be fine for BleWinrtDll. In the Microsoft sample, you can try setting a breakpoint or a log output at https://github.com/microsoft/Windows-universal-samples/blob/main/Samples/BluetoothLE/cs/Scenario2_Client.xaml.cs#L447
