I created an app: Thunkable
This app is using BLE to talk to an HM-10 module on arduino. When I scan, I find my device. When I connect, it reports that it is connected. When I try to send a string I get the error: “Can’t write the characteristic provided”.
I attached screen shots of my block, lightblue screen shot, error message.
I used lightblue to find the Advertised Service UUIDs. Is that the correct ID?