Hello everyone, I have just purchased an Arduino Leonado as my first board. :D I have been doing some reading and I want to make sure of the following.
All the inputs should received no more than 5v, Meaning that if i wanted to use an input to tell me if there is voltage drop from a 12v power source, I would need to convert those 12v to 5v and then connect them to the input?
Also, I am assuming that somewhere I would have to define that the 5v signal = 12v (100%). I am trying to warp me head around how this would work.
Here is the project:
I have a 12v power source of constant DC. However, there is a motor connected to the power source. When the motor turns on, it will draw power and there will be a slight change (drop) in voltage. I want the arduino to detect this and push power or a signal from another io to turn on an LED and power a relay to turn on another 12v device.
I would appreciate some guidance.