I am working on an Arduino project that changes a servo position depending on whether an input pin is energized or not.
When I apply 5v to pin A0 (working as a digital input) the arduino ntices the change immediately and the servo starts to move.
When I disconnect the power from pin A0, it takes between 3-4 seconds for the pin to go low and start the servo moving back.
I'd really like to have the pin react more quickly. Anything I can to to help this out? I have a pullup resistor on the power line to pin A0.
hi guys, I was wondering if I could you this 12v power supply from aliexpress :
and which amperage (of them) is the best for Arduino?
thanks for advanced
Hi everyone, hardware hacking question here. Should be simple but Im asking because the cost of failure is a burned up computer...but if this works this hack would be of use to other people driving servo powered robot arms.
I am driving hobby servos from an arduino nano breakout board & my application needs more current & voltage than the nano can pass.
So I want to pump up the 5v line by connecting it directly to Vin...The danger is passing >5v back to my computer via usb so I am trying to clip arduino pins to isolate it. Any tips of which pins to clip?
Hi guys not sure if this is the right place, but, I have tried three sets of 1.4 ramps sets. I plug in my power to ramps board and it seems ok, but when I plug in my usb it gets extremly hot, but usb plugged in without power on is fine. I am fed up because I cant see the problem, thanks in advance.