Programmable controller ARDUINO UNO R3, ATmega328P, 16MHz, 5V, SRAM 2KB, EEPROM 1KB, Programmable memory 32KB

Description: Arduino Uno is a microcontroller development board built with ATmega328P - datasheet. There are 14 digital input-output (I/O) ports, 6 analog inputs, a 16 MHz crystal resonator, four LEDs (one user connected to the 13th digital I/O port and three that indicate board operation: ON, Tx and Rx), USB connector, power connector, reset button and ICSP connector. Six of the digital I/O ports can be used as PWM outputs. The connection to a computer is made via a USB cable USB A - USB B. Uno can be powered by a USB port on a computer or from an external source, switching between the different power modes is automatic. The external power source can be a DC adapter 7-12V or a battery. In Uno Rev.3, the Atmega8U2 microcontroller programmed as a USB-to-Serial TTL adapter serving as the USB connection, has been replaced with an Atmega16U2. Two additional pins have been added after the Aref pin for the SDA and SCL signals on the I2C interface. The reset button has been moved to the USB connector, and after the reset pin there is a new IOREF port. USB cable for connecting to a computer - USB-A USB-B.