Motors & Drivers

• Microcontroller: ATmega328P ? 8-bit AVR family microcontroller
• Operating Voltage: 5V
• Recommended Input Voltage for Vin pin: 7-12V
• Analog Input Pins: 6 (A0 ? A5)
• Digital I/O Pins: 14 (Out of which 6 provide PWM output)
• DC Current on I/O Pins: 40 mA
• DC Current on 3.3V Pin: 50 mA
• Flash Memory: 32 KB (2 KB is used for Bootloader)
• SRAM: 2 KB
• EEPROM: 1 KB
• Frequency: 16 MHz
• Communication: IIC, SPI, USART

"Uno" means one in Italian and was chosen to mark the release of Arduino Software (IDE) 1.0. The Uno board and version 1.0 of Arduino Software (IDE) were the reference versions of Arduino, now evolved to newer releases. The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform; for an extensive list of current, past or outdated boards see the Arduino index of boards.