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Byte-Sized Bits

UNO R3 Board - ATmega328P Microcontroller - Arduino-Like

Regular price
$18.99 USD
Regular price
Sale price
$18.99 USD

The Uno Rev3 (R3) Board is the go-to general purpose Arduino Board.

Perfect for beginner and experts alike; this board can handle near all small-to-large sized projects you throw at it.


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
Length 68.6 mm
Width 53.4 mm
Weight 25 g