Hi, I was looking at this vid:
and he uses a commercial PID controller to input temperature values, does anyone know of a more affordable piece that can be substituted to input at least 2 different temperature values?
Please and Thank you!
The video is about making a replacement for the PID controller with an Arduino. You could make something like that for a bit less than the cost of the commercial unit but if you account for the value of your time I think you'll find that the commercial unit is cheaper. The primary value of the DIY solution is that you can design it exactly to your needs and you will get a lot of education and enjoyment from the project.