Automatic DS18B20 based thermostat controlled by AVR

This is an automatic DS18B20 temperature sensor based thermostat controlled by AVR Atmega8 microcontroller. It has a LCD for setting parameters and viewing program flow. 12 button keypad is used to navigate menu and enter parameters like threshold temperature values. Ideal solution for home heating system automation.

Project diagram

Parts and material

Circuit and assembly

Program

Testing