The Arduino Uno is a popular and widely used microcontroller board in the Arduino family. It is designed for beginners and hobbyists, making it easy for people to get started with electronics and programming.
The board was developed by the Arduino team and is based on the Atmega328P microcontroller chip.
Key features of the Arduino Uno include:
- Microcontroller: The heart of the Arduino Uno is the Atmega328P microcontroller. It is a low-power, high-performance chip from Microchip Technology (formerly Atmel). The microcontroller is responsible for executing the code uploaded to the board and controlling various components and peripherals.
- Digital and Analog I/O: The Arduino Uno has a set of digital input/output pins (14 in total) that can be used for reading sensors and controlling actuators such as LEDs, motors, and relays. Additionally, there are 6 analog input pins that can be used to read analog sensor values.
- PWM (Pulse Width Modulation) pins: There are 6 PWM pins on the board, allowing users to simulate analog output by controlling the pulse width of the signals. PWM is useful for controlling brightness of LEDs, speed of motors, and more.
- USB Interface: The Arduino Uno can be connected to a computer through a USB Type-B connector, which allows users to upload sketches (programs) to the board and communicate with it for data exchange.
- Power Options: The Arduino Uno can be powered through the USB connection or an external power supply (7-12V DC) using the DC power jack. It has a built-in voltage regulator that provides a stable 5V supply for the board and connected components.
- Open-Source Software: Arduino Uno is supported by an open-source software development environment, which makes it easy for users to write, compile, and upload code to the board. The Arduino IDE (Integrated Development Environment) is the official software used for programming Arduino boards.
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