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  1. UNO R3 | Arduino Documentation

    Arduino UNO is a microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, …

  2. Arduino UNO Rev3 with Long Pins

    Mar 14, 2024 · Arduino UNO is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a …

  3. UNO R3 SMD | Arduino Documentation

    Arduino UNO SMD is a microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz …

  4. Overview of the Arduino UNO Components

    Oct 7, 2025 · In addition to the specific functions listed below, the digital pins on an Arduino board can be used for general purpose input and output via the pinMode (), digitalRead (), and …

  5. The Arduino® UNO R3 is the perfect board to get familiar with electronics and coding. This versatile development board is equipped with the well-known ATmega328P and the ATMega …

  6. Arduino UNO R4 Shield Guide

    Oct 7, 2025 · Below you can find the pinout for the Arduino UNO R4 Minima. All UNO boards largely share the placement of many pins, to make it easy for accessories to be designed for …

  7. Inter-Integrated Circuit (I2C) Protocol | Arduino Documentation

    Arduino boards to share information with each other. In this example, two boards are programmed to communicate with one another in a Controller Reader/Peripheral Sender configuration via …

  8. UNO Q User Manual | Arduino Documentation

    The UNO Q is equipped with two connector types: the classic UNO-style headers on the top, designed for prototyping and debugging, guaranteeing full compatibility with Arduino UNO …

  9. UNO R4 WiFi | Arduino Documentation

    This MCU features an RTC, a DAC and a CAN bus and has support for HID via USB. The UNO R4 WiFi also features an ESP32-S3 for Wi-Fi®/Bluetooth® connectivity, which can also be …

  10. Advanced Section The following information is for advanced use only and may not be officially supported by Arduino software