First I’d like to say I’m fairly new to Arduino but I’ve found this forum to be incredibly helpful. I’m reaching out to anyone who can point me in the right direction for a small project I’m working on.
My objective is to measure the resistance between multiple inputs. I don’t even need the actual number, just whether the connection is present. I’ve successfully coded to read resistance on an analog port but my problem lies as to how I can to select and measure multiple connections.
Below is my hand drawn schematic. Please forgive the roughness of my sketch.
Basically, I need to be able to select which inputs to use (like a switch), then measure the resistance and report it. For example, select/open a connection between 2 &7, measure the resistance in between, and report it to Arduino. Can someone tell me what type of component I need to handle this many connections? Shift register, multiplexer, mux shield? I assume the device needs to have analog pins to obtain the resistance readings.