when i disconnect the ground to the arduino, it still works
That means the ground connection is from some other route, maybe through a computer or mains ground.
http://www.thebox.myzen.co.uk/Tutorial/Power_Supplies.html
when i disconnect the ground to the arduino, it still works
That means the ground connection is from some other route, maybe through a computer or mains ground.
http://www.thebox.myzen.co.uk/Tutorial/Power_Supplies.html