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Temperature controlled fan using Arduino
The Temperature Controlled Fan using Arduino is an automation project designed to regulate the operation of a fan based on ambient temperature. This project utilizes a temperature sensor (LM35) to continuously monitor the surrounding temperature.
The Arduino processes this data and automatically turns the fan ON or adjusts its speed when the temperature crosses a certain threshold. This not only enhances user comfort but also conserves energy by operating the fan only when needed.
The LM35 temperature sensor outputs a voltage that is linearly proportional to the ambient temperature (10 mV per °C). The Arduino reads this analog voltage using its ADC (Analog to Digital Converter), converts it into temperature, and then makes decisions.
Components Used:
Arduino UNO
LM35 Temperature Sensor
DC Fan
Transistor
Diode (e.g., 1N4007)Resistor (10kΩ)
Power Supply
If the temperature is below a certain level (e.g., 30°C), the fan remains OFF.If the temperature increases, the fan turns ON or runs at a higher speed.PWM (Pulse Width Modulation) is used to vary the speed of the fan if desired.
A transistor acts as a switch or driver to control the fan, since the Arduino cannot supply enough current directly.
CLICK BELOW LINK TO TRY IT IN TINKER CAD
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