Arduino Uno R3 Compatible Development Board
This is the classic Arduino Uno R3-compatible board from PMD Way. The most common board used in all manner of Arduino project and tutorials, based on the open-source R3 specifications by Arduino.
The new Uno R3 is the latest version after the Duemilanove, with an improved USB interface chip. Like the Duemilanove, it not only has an expanded shield header with a 3.3V reference and a RESET pin (which solves the problem of how to get to the RESET pin in a shield) AND a 500mA fuse to protect your computer's USB port, but ALSO an automatic circuit to select USB or DC power without a jumper! The Uno is pin and code-compatible with the Duemilanove, Diecimilla and older Arduinos so all your shields, libraries, code will still work. The new R3 (3rd revision) of the UNO has a few minor updates, with an upgrade to the USB interface chip and additional breakouts for the i2c pins and an IORef pin.
Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.
Arduino can sense the environment by receiving input from a variety of sensors and can affect its surroundings by controlling lights, motors, and other actuators. The microcontroller on the board is programmed using the Arduino programming language (based on Wiring) and the Arduino development environment (based on Processing). Arduino projects can be stand-alone or they can communicate with software on running on a computer (e.g. Flash, Processing, Max/MSP).
- Microcontroller - ATmega328P
- Operating Voltage - 5V
- Input Voltage (recommended) - 7-12V
- Input Voltage (limit) - 6-20V
- Digital I/O Pins - 14 (of which 6 provide PWM output)
- PWM Digital I/O Pins - 6
- Analog Input Pins - 6
- DC Current per I/O Pin - 20 mA
- DC Current for 3.3V Pin - 50 mA
- Flash Memory 32 KB (ATmega328P) of which 0.5 KB used by bootloader
- SRAM - 2 KB (ATmega328P)
- EEPROM - 1 KB (ATmega328P)
- Clock Speed - 16 MHz
- LED_BUILTIN - 13
- Length - 68.6 mm
- Width - 53.4 mm
- Weight - 25 g