This is a prototype version of the contactless switchboard which helps to control the appliances (AC appliances can be controlled through relays) without touching the actual switches. This can be used in public places like malls, hospitals, etc. In this pandemic time such device can be very useful.
Supplies
- Arduino UNO (Any Arduino Board can be used)
- Cable to connect Arduino to PC
- Breadboard
- Few Male to male Jumper wires
- 7 segment display
- 5 LED s
- 12-15 nos. 220 ohm resistors
- 2 IR Sensors
Step 1: Items Required
These are the items required for making this project.
Step 2: 7 Segment Connections
Step 3: LED Connections
The cathode (shorter leg) of all LEDs is connected to the negative rail of the breadboard which is connected to the Arduino GND. Anode (longer leg) of all LEDs is connected in series with 220-ohm resistor and then is connected to the A0,A1,A2,A3,A4 pins of the Arduino UNO. You can make changes in the code if you want to use other pins or any other Arduino Board. The circuit shown in the picture is designed in TinkerCAD.
Step 4: IR Sensor Connections
Step 5: Uploading the Code
Upload the following code to your Arduino Board. You can change number of appliances by changing variables in the code. Also, if you want to use third IR sensor to increase and decrease number on 7-segment display uncomment the lines related to ir2 in the code.
Step 6: Have a Try!
Read more: Contactless Switchboard