PID

Projects Programming
1

Hello
This is my third attempt to post a question, so bare with me.

There is a library that shows examples of PID functions.
The one that interests me has a two tuning parameters, one aggressive and one conservative that appears to do what I need for a control loop.
The output signal from the analog pin 3 I don't understand.
Is this simply a 0-5 vdc signal or is this a PWM output?

Here is the code
https://playground.arduino.cc/Code/PIDLibraryAdaptiveTuningsExample

Thank you in advance

2

0 or 5V PWM. analogWrite() - Arduino Reference
https://www.arduino.cc/en/Tutorial/PWM

3

... and the output pin is D3 and not A3.

4

analogWrite() is not analog. Its a digital signal using hardware PWM.

( Well, true on most boards - the Due uses is for the inbuilt DAC for a couple of pins, note, there
may be some other examples, but all the ATmega boards use PWM )

5

Thank you.
For the quick replies.

OG