Arduino Uno is an open source hardware and software platform for designing and developing of electronic devices. Arduino Uno has its own microcontroller board.
UNO meaning ‘one’ in Italian was termed as such to signify the first release of Arduino Software as well as the USB board.
Input Voltage (recommended)
Digital I/O Pins
14 (of which 6 provide PWM output)
Analog Input Pins
DC Current per I/O Pin
DC Current for 3.3V Pin
32 KB of which 0.5 KB used by bootloader