Temperature controlled home automation In this project, we are going to make a simple Temperature controlled circuit using Temperature Sensor LM35.This circuit will be automatically on or off your any AC home appliance according to temperature. We also adjust the temperature by the Variable resistor in the circuit. . When you set the Temperature value at fix Temperature ( 35 Degree Celsius ) then temperature goes above 35 Degree Celsius then fan will switch on automatically and if temperature goes below 35 degree fan will be automatically switched off. Temperature controlled circuit diagram:- Components Required :- 12v Battery IC 7805 Temperature sensor LM35 Op-amp LM358 1k ohm Resistor (3) 10k ohm Resistor (1) 4.7k ohm Resistor (1) Variable Resistor 10k LEDs (Red and Green) NPN Transistor BC547 (1) Diode 1N4007 Relay 12v Bulb or any AC appliance Capacitor (1000uF and 100uF) PCB :- ...
electronic circuits and projects