The Arduino Uno Board A000066 R3 is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller - simply connect it to a computer with a USB cable or power it with an AC-to-DC adaptor or battery to get started. The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U2 programmed as a USB-to-serial converter. * Microcontroller ATmega328 * Operating voltage 5V * Input voltage range nom. 7-12V * Maximum supply voltage 20V * Digital I/O pins 14 (of which 6 provide PWM output) * Analog input pins 6 * DC Current per I/O pin 40 mA * DC Current for 3.3V pin 50 mA * Flash memory 32 KB of which 0.5 KB is used by bootloader * SRAM 2 KB * EEPROM 1 KB * Clock speed 16 MHz * USB Connector type B Male https://elecena.pl/product/27276308/arduino-uno-a000066-board-r3 2024-11-14 https://elecena.pl/product/27276308/arduino-uno-a000066-board-r3 2025-02-24 https://elecena.pl/product/27276308/arduino-uno-a000066-board-r3 2025-04-10 https://elecena.pl/product/27276308/arduino-uno-a000066-board-r3 2025-06-17 https://elecena.pl/product/27276308/arduino-uno-a000066-board-r3 2025-07-25 https://elecena.pl/product/27276308/arduino-uno-a000066-board-r3 2026-03-02 https://elecena.pl/product/27276308/arduino-uno-a000066-board-r3 2026-05-11