Product Description

#btechprojects #electricalengineering #collegeprojects
PROJECTRONICS
For more project – https://www.projectronics.in

You have to arrange –
1 – 24×18 plywood or ny hardsheet
2 – Gluegun and stick

We deals with
– Inhouse project training in school and colleges
– Online class/help for invidual projects
– 1000s of readymade projects
– Customized circuits on request
– Both electronics and art n craft materila, retail and wholeselling sale

Abstarct – The Automatic Room Temperature Controller is an embedded system designed to maintain a comfortable indoor environment by regulating a cooling fan based on real-time thermal data. Utilizing an Arduino as the central processing unit, the system interfaces with an LM35 analog sensor to monitor ambient temperature with high precision. When the detected temperature exceeds a user-defined threshold (adjustable between 20°C and 40°C), the Arduino triggers a TRIAC-based relay circuit to activate a DC fan. This setup ensures energy efficiency by only operating the fan when necessary, while a 16×2 LCD provides a continuous visual readout of both the current temperature and the set limit. By employing a TRIAC for switching, the system benefits from silent, solid-state operation compared to traditional mechanical relays.
Component Breakdown
• Arduino Uno/Nano: The microcontroller “brain” that reads sensor data, executes the logic code, and controls the outputs.
• LM35 Temperature Sensor: A precision integrated-circuit sensor whose output voltage is linearly proportional to the Celsius temperature (10mV/°C).
• 16×2 LCD Display: Shows the real-time temperature and the operational status of the fan.
• TRIAC (e.g., BT136): A solid-state electronic component used to switch the fan on and off; it is often paired with an Optocoupler (MOC3021) for electrical isolation.
• DC Fan: The cooling actuator that circulates air when the temperature limit is breached.
• Potentiometer (10k): Used to manually adjust the temperature limit within the 20°C to 40°C range via an analog input pin.
• Resistors & Jumpers: Standard hardware for circuit protection and breadboard connections.

Product Details:

Additional Information:

• Item Code: P-089
• Production Capacity: 10
• Delivery Time: Appx 5days
• Packaging Details: Complete circuit with complete report