O Level Exam : Practical Question
📝 HTML
🎨 CSS
⚡ Java Script
int buttonState = 0; int lastButtonState = 0; int ledState = LOW; void setup() { pinMode(13, OUTPUT); pinMode(2, INPUT); } void loop() { buttonState = digitalRead(2); if (buttonState != lastButtonState) { if (buttonState == HIGH) { ledState = !ledState; digitalWrite(13, ledState); } delay(50); } lastButtonState = buttonState; }
▶ Run Code
🖥 Output: