Control Arduino LED with Your Keyboard! (No Button Needed)
In this video, you’ll learn how to control an LED using the Serial Monitor in Arduino.
Instead of using a push button, we will turn the LED ON and OFF just by typing values from the keyboard.
Type 1 → LED ON
Type 0 → LED OFF
This simple project will help you understand:
Serial communication in Arduino
How Serial Monitor works
How Arduino reads input data
Basic embedded system debugging
This is a beginner-friendly project but also a very important concept used in real embedded systems.
What You’ll Learn
✔ Serial.begin()
✔ Serial.available()
✔ Serial.read()
✔ Controlling digital output
✔ UART communication basics
Components Used
Arduino UNO
LED
Resistor (1kΩ)
USB Cable