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I need a program to control a valve resolution 0 to 1023 ladder

I need a program to control a valve resolution 0 to 1023 ladder
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Answer #1

The basic "P" term in the PID control loop sets the increase based on how far away you are from the goal:


potValue = analogRead(potPin);
currentValue = analogRead(0);
ValveValue = ValveValue + (potValue - currentValue) * Gain;
OutputValue = map(ValveValue, 0, 1023, 0, 255);
analogWrite(ValvePin, OutputValue);

Note this keeps ValveValue at high resolution (0-1023) but maps it down to 0-255 for output only. Gain may be varied to change the speed of response. Use a floating-point number because it will probably end up rather small, like 0.05.

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