Step 1: Anatomy of an Arduino Uno R3

   
Step 2: Getting Started (The Bare Minimum)

   
Step 3: Arduino Desktop IDE (Integrated Development Environment)

   
Your First Arduino Project (Activating UNO's On-Board LED)

   
Flashing a Single LED

   
Flashing 3 LEDs

   
Ultrasonic Distance Sensor and 3 LEDs

   
Ultrasonic Distance Sensor with Piezo Buzzer

   
LCD Display with Dimmer and Photoresistor

   
Ultrasonic Distance Sensor with LCD Readout

   
DSLR or Mirrorles Camera Trigger (intervalometer)

   
Double Break Beam Camera Trigger

   
LiDAR Camera Trigger