That could be the power supply and the logic levels are 3.3 volt. I use a GPS circuit like that. It can be powered with 3.3 or 5 volt but the logic signals are 3.3 volt!
Can You look into the data sheet of the BLE and look at logic level data?
That could be the power supply and the logic levels are 3.3 volt. I use a GPS circuit like that. It can be powered with 3.3 or 5 volt but the logic signals are 3.3 volt!
Can You look into the data sheet of the BLE and look at logic level data?