https://github.com/kr4fty/pid-temperature-control

PID temperature control for oven and/or electric heater, using Arduino
https://github.com/kr4fty/pid-temperature-control

Last synced: about 1 year ago
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PID temperature control for oven and/or electric heater, using Arduino

• Host: GitHub
• URL: https://github.com/kr4fty/pid-temperature-control
• Owner: kr4fty
• License: gpl-2.0
• Created: 2017-03-02T20:21:05.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2022-12-28T21:51:30.000Z (over 3 years ago)
• Last Synced: 2025-03-26T13:21:19.523Z (about 1 year ago)
• Language: C++
• Homepage:
• Size: 227 KB
• Stars: 21
• Watchers: 7
• Forks: 6
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# PID-temperature-control

Temperature control of an oven/heater made with Arduino Uno (atmega328p microcontroller).

For it, a PID controller is used which will provide a constant temperature at the outlet, according to that established by the user.

This is an implementation of the ovenControl library for Arduino boards.

## Description:

The system maintains a constant temperature at which it is selected. It can vary between 0 and 420ºC.

## Software

These are the libraries required for their operation:

* Lcd: [Adafruit-PCD8544-Nokia-5110-LCD-library](https://github.com/adafruit/Adafruit-PCD8544-Nokia-5110-LCD-library).

* Keyboard: [AnalogKeypad](https://github.com/kr4fty/AnalogKeyPad).

* Menu: [MenuPCD8544](https://github.com/kr4fty/MenuPCD8544).

* K thermocouple: [K-Type_thermocouple-Library](https://github.com/kr4fty/K-Type_thermocouple-Library).

* OvenControl: [ovenControl](https://github.com/kr4fty/ovenControl).

## Hardware:

The system is composed of five main parts

* **The microcontroller**: brain in charge of the administration of resources.

* **Display and keyboard**: is the user interface. It uses a lcd of a Nokia 3310/5510 and a ladder type keyboard.

* **The temperature sensor**: in charge of constantly measuring the temperature of the oven/heater and in this way can make the feedback towards the control for the respective adjustments. For this function a K-type thermocouple  is used.

* **AC control**: in charge of handling AC, in this case I will use 220Vac/50Hz. For this purpose opto-thyristors are used, which act as a solid state relay.

* **Zero crossing detector**: in charge of activating the thyristors from the moment in which the alternating voltage wave is detected crosses by zero.For this function a K-type thermocouple is used.

![alt tag](https://github.com/kr4fty/PID-temperature-control/blob/master/hardware/circuit.png)

## Video

[![Oven Control](https://img.youtube.com/vi/Dz5Lqh4SREI/0.jpg)](https://www.youtube.com/watch?v=Dz5Lqh4SREI "PID Oven Control")