Stage 1

Output Control

setup(), loop(), digitalWrite(), delay()

Stage 1 is where every Arduino journey begins. You will learn how a program is organized — setup() runs once, loop() runs forever — and how to turn outputs on and off with digitalWrite() and delay().

Skills you will learn

Program structure: setup() and loop()
Digital outputs with digitalWrite()
Timing with delay()
Controlling LEDs, RGB colors, and light patterns

By the end of Stage 1, you will have built 10 projects — from a simple blink to a mini light show!

10 projects in this stage

Blink LED

setup() and loop() program structure

Fast & Slow Blink

changing delay() values

Traffic Light

sequencing multiple outputs with timing

LED Chaser

loop index drives a moving pattern

Multiple LED Patterns

nested loops and pattern tables

Alternate LEDs

alternating output states

RGB LED Basics

three digital outputs for RGB channels

RGB Color Mixer

combining channel values for colors

Electronic Candle

flicker timing with delay()

Mini Light Show

timed show sequences

← Introduction Stage 2 →