I have one of these Arduino Nano expansion boards.
Does anyone have a schematic for these?
The board has a 3.3 volt regulator. How is it connected to Nano?
I think it only sources the extra 3.3V connectors.
Ok. So the DC jack goes straight to the Nano's Vin pin then?
If straight means via a diode and buffered by capacitors, yes.
I think I actually found a schematic for this type of board.
According to it, the power goes from the shield to the Nano, then returns back to the shield as VCC (5V), before being downregulated to 3.3V. Is it your understanding too?
I think it would better if the shield converted DC to 3.3V directly, without having to go through the Nano first.
Then maybe you would prefer a Nano IO shield (wich has a NRF24L01 and XBEE Bluetooth socket)
That is a nice board, but pricier, and kind of a waste of real estate if I don't need RF.
The last I bought was €1.92 with free shipping.
I have one of these and I can not get is to run servo motors. Does anyone know how?
The basic problem with this board is that the servo V+ is connected with the output of the Nano board regulator. for example if you have a 6 volt battery the nano 5 volt power comes from a small three terminal regulator that can't handle the servo current needs.
Thus you need to rework the board to run the servos directly from the Battery
Hello guys, new to arduino here. Does anyone know if you can connect 5V regulated to power (input) a nano connected to this board? Do I just peak one of the 5V connections on the board and hope it works?