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PID Program Code for Arduino

Former Member over 11 years ago

Respected Sir,

My self Rinkal padariya , I am stuided in Instrumentation & control Branch in BE

our project is "Development Of PID Controller for Temperature Control Using Arduino[ATmega238].

I attached some file which is PID Code .Please help me for error correction

Attachments:

	How To Write PID control algorithm using C language _ TipsWell.pdf
PID Arduino.txt.zip

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Robert Peter Oakes over 11 years ago

A couple of things right away

The code you have attached is measuring light, that's what photores do, it is a light dependent resistor..

What is the source of the PID library (Where did you get it, please provide a link)

what errors are you getting, please provide the errors as an image or written

if you want High and Low temperature and could also want humidity too, as this is common on weather stations, you might want to look at this DHT22 temperature and Humidity Sensor with Arduino Uno and Ethernet Card (ENC or WizNet) (Instant weather Station)

there is also the DS18B20 Arduino Playground - OneWire

and a PID library from here Arduino Playground - PIDLibrary

Armed with these libraries and the sample code you have you should be able to adapt the example to work with temperature.

If you try and cant get too far then please come back , post the code you have and we can try to help more

also in the sample code provided you had many instances where the comments continued on another line causing errors

the attached is with this corrected and it compiles without errors but still working as a light sensor control, not a temperature

Peter
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Robert Peter Oakes over 11 years ago

A couple of things right away

The code you have attached is measuring light, that's what photores do, it is a light dependent resistor..

What is the source of the PID library (Where did you get it, please provide a link)

what errors are you getting, please provide the errors as an image or written

if you want High and Low temperature and could also want humidity too, as this is common on weather stations, you might want to look at this DHT22 temperature and Humidity Sensor with Arduino Uno and Ethernet Card (ENC or WizNet) (Instant weather Station)

there is also the DS18B20 Arduino Playground - OneWire

and a PID library from here Arduino Playground - PIDLibrary

Armed with these libraries and the sample code you have you should be able to adapt the example to work with temperature.

If you try and cant get too far then please come back , post the code you have and we can try to help more

also in the sample code provided you had many instances where the comments continued on another line causing errors

the attached is with this corrected and it compiles without errors but still working as a light sensor control, not a temperature

Peter
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