Regulator with ATMEGA16

[Ibanitescu]

Hello,

I have a PID regulator with ATMEGA16 with two inputs: a bulb and a cpu fan. I must control them using PWM. I understand what PWM means, but i don't understand how to make space factor (pulse duty factor) to be variable, because I setonce the register OCR1A and then I don't increment it neither decrement. Temperature should be between two level a superior one and an inferior, and should have a rise with a proportional. Thank you.

[Shane]

See following video tutorial.

[media]http://www.youtube.com/watch?v=YmPziPfaByw[/media]

LED Control

PWMcircuit.jpg (53.86 KiB) Viewed 3682 times

Motor Control

PWMcircuitwithmotor.jpg (53.75 KiB) Viewed 3682 times

Once you have the basic background knowledge, we can discuss further if you want.