Hi everyone. I am only able to start the Arduino nano BLE via USB or this:
But not this:
The two wires are connected to 3.3v battery.
Clearly I'm doing something terribly wrong, can anyone help me out?
Did I "break" something?
That's to be expected- when powering it up via the VIN pin you need to supply a high enough voltage to run the 3.3V regulator.
But the arduino nano ble only supports 3.3 volts max?
The maximum you can supply to the 3.3V pin, or the IO pins, is 3.3V. When you supply power to the VIN pin it feeds a 3.3V regulator, which brings the voltage down to 3.3V and supplies it to the 3.3V side of the board.
The allowed voltage range of the VIN pin is 4.5-21 V.
Thank you all for the heads up!
It does work indeed.
I was getting confused with the information in the store page saying it would damage the board with higher voltages.
You're welcome. I'm glad to hear it's working now.
It is still very important to not subject the microcontroller on the board to voltage levels above 3.3 V. That's what the warnings are about.