Temperature Detecting Heating Control System with Arduino Mega2560

By on September 12, 2014

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Project Summary:

To help electronic DIY hobbyists, will show you how to use Temperature Detecting Heating Control System with Arduino Mega2560.

Full Project:

The temperature detecting heating control system works with DC5V voltage. This system uses DS18B20 temperature detection chip as the external detection equipment.
It works according to the external temperature collected by DS18B20. The system can make the heater work according to the temperature which has been setted. When the actual temperature is lower than the setting temperature, the heater begins to heat to make the temperature go up. When the heating temperature is not lower than the setting temperature, the heater stops working, the buzzer will alarm.

Step 1: Schematic Diagram

Picture of Schematic Diagram

Step 2: Power Supply Line & GND Line

Picture of Power Supply Line & GND Line

Plug +5V power supply and GND to the bread board from the ICSTATION MEGA development board, and the red bread wire is used as supply line, the black one as GND line.

Step 3: LCD1602

Picture of LCD1602

Plug LCD 1602 into the bread board, and use the DuPont thread to draw forth the digital tube pins.

Step 4: Digital Tube & MEGA2560

Picture of Digital Tube & MEGA2560

According to the schematic diagram, connect the pins of 4bit Digital Tube with the pins of ICSTATION MEGA development board.

Step 5: Place the Buzzer

Picture of Place the Buzzer

The two sides connect with GND and +5V
The middle board development board connects to the pin 12.

Step 6: Connection of DS18B20 & Keyboad

Picture of Connection of DS18B20 & Keyboad

Step 7: Connection of the Relay Module

Picture of Connection of the Relay Module

The relay VCC and GND respectively connect to the bread board “+” “-”, and connect to the development board pin 13.

Step 8: Installation of Keyboard

Picture of Installation of Keyboard


Step 9: Finished and Testing

Picture of Finished and Testing

Circuit diagram:

Picture of Schematic Diagram

Bill of Materials:

1 x ICStation ATMEGA2560 Mega2560 R3 Board Compatible Arduino or Arduino Mega

1 x 830 Point Solderless PCB Bread Board MB-102 Test DIY

1 x Waterproof Digital Thermal Probe Sensor DS18B20

1 x 1 Channel 5V Relay Module For PIC ARM AVR DSP SRD-05VDC-SL-C

1 x Active Buzzer Module for Arduino

39pcs Breadboard Plug Wire Cable Tire

2 x 12X12X5mm Tact Switches 4 Legs

1K ohm 1/4W 1% Accuracy Metal Film Resistor

1602A HD44780 Character LCD Display Module LCM Blue Backlight



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