Hi, it's been a while since I used and programmed any Arduino boards now, so I would like some basic help before I start this small project.
I have signals from two separate temp-sensors that I would like to switch between, depending on some criterias, and send the selected signal forward to a external source. (Note that these signals are from external devices, and are not "connected" to the arduino other than I want to select which signal to forward)
My first thought was to control a basic relay connected to my mini usb nano v3, since I have the two at home already.
But since there's only the resistance from the temp-sensors that I would like to forward, I was thinking that I maybe can use the nano itself, depending on the current in these signals of course.
- Is it possible to forward the signal, through the nano, without using a (external) relay?
- Can this be done using the mini usb nano v3, or do I need another board?
That's all for now!
Thanks in advance / Mr C