Week 8 – Sitting changes colour


Create an unusual switch that doesn’t require the use of your hands. Use Arduino digital input and output for the interaction.


So, I was just sitting on my chair trying to think about what to make. I got the idea, why don’t I just make something that involves sitting on the chair. So here it goes.

I used two LEDs ( red and blue). I used 3 resistors ( two 330 v and one 10k) to control the flow of electricity. I used basic conductors wires and jumper twins to finish the circuit. I connected the Red LED to Digital Input 13, Blue LED to Digital Input 12. I connected the switch to 7.

I connected the copper wires to the copper tape to give it a bigger surface area to conduct electricity.

This is the final video of me testing out the product:-

The code was pretty simple.


const int ledRed = 13;
const int switch1 = 7;
const int ledBlue = 12;
bool currentState = false;
bool switchState = LOW;

void setup() {
  // put your setup code here, to run once:
  pinMode(ledRed, OUTPUT);
  pinMode(ledBlue, OUTPUT);
  pinMode(switch1, INPUT);

void loop() {

///put your main code here, to run repeatedly:
    switchState = digitalRead(switch1);
    if (currentState != switchState ){
      digitalWrite(ledBlue, LOW);
      digitalWrite(ledRed, HIGH);
     } else {
      digitalWrite(ledBlue, HIGH);
      digitalWrite(ledRed, LOW);


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