The components wired together.
The Radiator Switch in my dorm.

RadiaSnap

MakeHarvard2020

Project Purpose

Many of the older apartments and dorms, including mine, still use radiators to heat the room. The issue is that these units will cause the room to be too hot and the occupant will have to either shut the radiator off or open a window. The latter is a waste of energy. This project attempts to automate the switching process so that upon reaching a certain temp the Radiator switch is turned on or off. This might not work if your radiator does not have an accessible switch.

Materials List

Arduino Uno
Groove Base Shield
Groove RGB-LCD display
Groove Temperature Sensor
Groove Button x 2
Fixed Servo Motor
80/20 T slot profiles x 4
Sheet of Wood

Assembly Instructions

Connect the base shield to the arduino
Connect Servo motor signal to port 4 and 5V power and GND cables
Connect Temp sensor to A0 on base shield
Connect Increase button to D2 and Decrease button to D3 on the base shield
Connect LCD to I2C on base shield
Cut 4 5x3.5" pieces of the wood sheet and 2 3.5x3.5 pieces for the box and the holes indicated in the diagram. Attach sides together except top.
Connect 2 sliders on the top side of each horizontal T-Profile
Connect 2 sliders to the inside of each horizontal T-Profie these will slide into the verticle T-profiles
Connect the 4 T slot profiles in a rectangle and the 2 horizontal bars should sit in between the 2 verticle T-Profiles
Mount Arduino And servo into box 10 Put components in to their respective cutout (see diagram)
Mount box to Horizontal T-Profile Sliders

Project Code Description

The code should be compiled and run on the Arduino Uno. It will display desired and current room temperature on the LCD. If the current temp is above or below the desired temperature by 20 degrees Farenheit or if it exceeds either the upper or lower threshold the servo will move and switch the radiator off or on. The occupant can adjust the desired Temp value by using the Up and Down buttons.