Beginner
Structure Basics
Understand setup(), loop(), and how an Arduino sketch runs.
12 min10% progress
Lessons / arduino
Arduino (C/C++) Lesson Library
Production lessons and simulator are currently built for Arduino syntax.
Beginner
Variables & Constants
Store values safely with clear names and const pins.
15 min18% progress
Beginner
Digital I/O
Read buttons and control LEDs using digital pins.
18 min24% progress
Beginner+
Time Functions
Learn delay(), millis(), and timing without blocking.
20 min8% progress
Beginner
Control Structure
Use if, else, and loops to control program behavior.
16 min15% progress
Beginner
Operators
Practice arithmetic, comparison, and logical operators.
14 min6% progress
Beginner+
Conversion
Convert values safely between data types and text formats.
18 min0% progress
Beginner+
Analog I/O
Read sensors and control brightness with PWM output.
22 min12% progress
Beginner
Serial Communication
Use the Serial Monitor to debug and inspect values.
13 min20% progress
Beginner+
Math Functions
Use map(), constrain(), and rounding for sensor logic.
17 min5% progress
Intermediate
Interrupts
Understand event-driven input handling on ESP32.
28 min0% progress
Intermediate
Advanced I/O
Explore debouncing, pull-ups, and stable input design.
26 min0% progress
Intermediate
Communication Protocols (SPI, Wire, WiFi)
Get introduced to peripherals and network communication basics.
35 min0% progress