How to Use the Arduino's Digital I/O - Projects
How to Control the Arduino's GPIO Pins From a Web Page - Circuit Basics
Getting Started with the Arduino - Controlling the LED (Part 1)
Getting Started with Input Output Devices on Arduino
The Basics of Arduino: Reading Switch States
Arduino - Turn LED ON and OFF With Button - The Robotics Back-End
Grove Beginner Kit for Arduino - Seeed Wiki
Fading led with LDR(Light Dependent Resistor) using Arduino uno
Arduino project: read a digital input
Tweaking4All.com - Arduino - Playing with a light sensitive resistor (LDR)
Tinkercad Circuit: How to Make the Built-in LED and LED light up through a push button - Stack Overflow
Arduino With Python: How to Get Started – Real Python
Control the LED using LDR with Arduino in Proteus – microdigisoft.com
Using an Arduino's Digital I/O
Arduino project: read a digital input
Blink an LED With Arduino in Tinkercad : 6 Steps (with Pictures) - Instructables
Arduino LED's - De Anza Tech
Arduino Button Tutorial Using Arduino DigitalRead Function - Arduino Project Hub
5 different ways to Blink an LED using Arduino (+ Bonus)
