The project is to design a control system to regulate the temperature and lighting for a comfortable room for human use. We used a light bulb as a heating source wrapped in aluminium foil powered by 120V through a 12V relay which is powered by a transistor which is powered by the 5V output from the board. The fan used to cool the room is powered by a 12V power supply which is powered by another transistor. The temperature is measured by a 2K thermistor and the LEDs are measured by a 10K photocell. We used the set point temperature as 25.6 degrees Celsius for example purposes.
Parts List:
-Two 1K resistors
-10K resistor
-Two TIP120 transistors
-10K LDR
-2K thermistor
-Arduino UNO board
-150 Watt, 120V light bulb
-12V relay
-2 LEDs
-12V fan
Link to the arduino code:
https://db.tt/ptQP1CEH
Post time: Jul-23-2017