This is a Low cost controller, Analog Dial Temperature Controller. It is also called Blind Controller. This essentially means Open Loop, just control the fuel or energy input to the system to regulate heat....
This is the Display Circuit and PCB part of of section Temperature Control. The above circuit is powered by +5 and -5 from a LM7805 and LM7905 pair. If +/- 12V or +/- 7.5V...
My name is RP i’m working on a project to regulated the temperature of a coffee maker. I don”t know were to start. what i want is to regulate the temperature of the coffee....
