Learn ARDUINO-C with Real Code Examples
Updated Nov 27, 2025
Installation Setup
Download and install Arduino IDE
Connect Arduino board via USB
Install board drivers (if required)
Select board and port in IDE
Test example sketches (Blink, Serial Monitor)
Environment Setup
Install Arduino IDE or PlatformIO
Connect Arduino board
Select board type and COM port
Install required libraries
Verify with example sketches
Config Files
Sketch (.ino)
Library header/source files (.h/.cpp)
Board configuration in IDE
Library JSON manifests
Optional custom board definitions
Cli Commands
arduino-cli compile
arduino-cli upload
arduino-cli board list
arduino-cli lib install
arduino-cli monitor
Internationalization
Serial messages can be localized
UTF-8 supported in compatible displays
Date/time formatting via libraries
Numeric formats customizable
Limited language-dependent library examples
Accessibility
Serial output readable by screen readers
Keyboard-only interface via serial commands
External displays for visual feedback
Audible feedback via buzzers
Physical buttons for input
Ui Styling
Minimal: Serial Monitor output
LEDs, displays, and external modules
LCD/OLED via libraries
Push-buttons or rotary encoders
Optional web-based UI for IoT boards
State Management
Global and local variables in sketch
EEPROM for persistent data
Volatile variables for interrupt handling
Timing via millis() and micros()
Loop execution state managed manually
Data Management
Read/write digital and analog pins
EEPROM storage for persistent variables
Serial communication with external devices
Sensor data processing in RAM
Optional SD card logging