Extra Credit

Arduino

Systems and hardware Embedded and IoT
Official docs Learn Arduino on your Mac

Official docs outline

10 sections
  1. Arduino docs

    Arduino documentation hub for boards, tutorials and language reference.

  2. Language reference

    Functions, variables and structure of Arduino.

  3. Getting started

    Setting up and uploading a first sketch.

  4. Wire library

    I2C communication with Wire.begin, beginTransmission and requestFrom.

  5. SPI library

    SPI communication with SPI.begin, transfer and SPISettings.

  6. Serial

    Serial.begin, print and read for UART communication.

  7. Arduino CLI

    Command line for compiling and uploading.

  8. Library specification

    library.properties, folder layout and metadata for Arduino libraries.

  9. Sketch specification

    Sketch folder layout, .ino files and build process.

  10. UNO R4 WiFi

    Board documentation for the Arduino UNO R4 WiFi.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.

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