Lamaplc: Arduino

Arduino is an open-source company, project, and community focused on designing and producing single-board microcontrollers and kits for digital device creation. Its hardware is licensed under CC BY-SA, while the software is available under the LGPL or GPL, allowing anyone to produce Arduino boards and distribute the software. These boards can be purchased commercially via the official website or authorized distributors.

Arduino board designs incorporate various microprocessors and controllers. These boards come with digital and analog input/output (I/O) pins, which can interface with expansion boards ('shields'), breadboards for prototyping, and other circuits. They include serial communication interfaces, such as Universal Serial Bus (USB) on some models, also used for program loading. Microcontrollers are programmed in C and C++, using a standard API known as the Arduino Programming Language. This language, inspired by Processing, is used alongside a modified Processing IDE.

The Arduino hardware ecosystem consists of four main official board families: Classic, Nano, MKR, and Portenta/Industrial, plus some specialized form factors. Each family is tailored for various skill levels, form factors, and project complexities.

Hardware

Arduino basics
Arduino shield
Arduino display
Arduino wiring
Arduino MKR family
Espressif ESP family
STM32F10: ARM STM32 Minimum System Development Module Board

Software
Arduino code collection

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