Hi Everyone,
I have a little experience with electronics, but I wanted to get your advice on a project I have. I want to make a circuit that would automate the following:
Apply a high signal (say +5V) to a pin on a pump to turn it off
What turned the pump on?
Interface with an electronic power supply (RS232) or just output 0-3A current (with a corresponding 0-10V) for 20 min (to heat a sample)
Is this a heater? How do you know what to output? Temperature or watts or???
Turn a knob X turns to a certain position on a valve (Ideally this would be double checked against a high trip line (say +5V) to reproducibly leak in the same amount of a gas, but that is optional)
It looks "big" could a stepper motor turn it? What do you mean by a high trip line?
Somehow apply a series of button pushes to a 2x2 array of 0.5"x0.5" buttons (has to be done mechanically unfortunately)
This is like a computer keypad?
After waiting the 20 min everything would be reversed to turn it all off. This is done exactly the same way every time Do you think I could use a micro controller for something like this or what would be the best way to approach this project?
Thanks!