I made a simple code that turns a led on in order to see if the setup work after disconnecting the USB from my PC .The setup is connected to a pack of 4 AA batteries each outputing 1.5V so that means 6V in total, wires are hooked up in place, red to VIN or 5V and the gnd to GND, BUT the led isn't turning on! I tried this with other projects like Servo Sweep but it's the same.

That does sound like the Nano is being powered but unless the pins are soldered to the Nano there is no guarantee of anything Have you got a soldering iron and some flux cored solder ?

Connecting 6V to the 5V pin may have blown the MPU, does it still work on USB?

I didn't connect it I was just saying It's always on VIN it works just fine

[image] CristyRO9: It doesn't have any !Serial like line it Please post the sketch that you are having problems with

It's simple... void setup() { pinMode(A0, OUTPUT); } void loop() { digitalWrite(A0, HIGH); }

Are are pins that go into the breadboard soldered to the Nano ?

Arudino doesn't work after disconnecting the USB from the pc even with the code uploaded and the PSU connected

Projects General Guidance

UKHeliBob May 18, 2023, 10:23am 21

Solder the pins to the Nano and report back what happens when you try the sketch and the circuit

Servo not respecting code

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Arudino doesn't work after disconnecting the USB from the pc even with the code uploaded and the PSU connected

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