How to Receive more than 20 Bytes from BLE connected device

[Juan_Antonio]

RequestMTU

[SOLVED] Can't send payload > 23bytes(MTU setted to 128bytes)

That event block looks like an unlikely place to request an MTU change. From the name of the event, I imagine it is confirming the success of the attempt to change the MTU that you did not yet submit (a temporal anomaly) Here is the doc page: http://iot.appinventor.mit.edu/#/bluetoothle/bluetoothleintro Here is the doc for the event: MTUChanged – The MTUChanged event is run when the two BluetoothLE devices have successfully changed their maximum transmission unit (MTU) to a different val…