I’m very new to electronics and I wanted to start with something that would hopefully simple, but also useful.
I’d like to make a circuit that can read a DC input voltage (between 9V and 20V) and output to a multicolor LED. The color would change depending on the sensed voltage.
Can someone please steer me in the correct direction for getting started on this project? I’m not certain what terms I should be searching or an ICs I can take a look at.
Is this as simple as making a set of voltage dividers and placing my output to the LED’s pins in the appropriate location?
EDIT:
OK. Here’s my first attempt/iteration.
Image may be NSFW.
Clik here to view.
simulate this circuit – Schematic created using CircuitLab
If I understand correctly, anything 13VDC or higher should light the LED? Should I limit current somehow to the IC or will R1 handle it?
