I am new to arduino. I have a project in which I need an arduino to generate a +5VDC signal in response to a change of status, (high/5VDC To low/ground) from an external source.
The external source is a stand alone receiver/transmitter set which outputs +5VDC when the transmitter is out of range and ground when the transmitter is within range.
The goal is to have the arduino output +5VDC (triggering a series of events) only when the TX is within range of the RX (signal voltage is GRND vs. +5vDC). The series of events are controlled via a stand alone event controller which is initiated by a +5VDC signal courtesy of the arduino.
I already have a RX/TX set which outputs +5VDC when the the TX is absent and GROUND when the TX is within range. I also have the event controller. I only need the arduino solution.
I have an arduino UNO but I am open to other option if needed.
Solution: give me +5VDC when signal voltage (from receiver) is low (ground).
If anyone could point me in the right direction it would be greatly appreciated. This is my first arduino project so I have much to learn.