Uno ATmega328P-PU, Arduino Compatible

brand: SainSmart SKU: 101-51-100

The SainSmart UNO is a microcontroller board based on the ATmega328, and UNO is the most used board in the family of Arduino boards. If you are starting out with Arduino, this is the board to get..

  • Atmega8U2 programmed as a USB-to-serial converter.
  • It can be powered via the USB connection or with an external power supply
  • Recommend power: 7~12 V
  • Buy 5 to save 10% - Use code: GIVEME5

The SainSmart UNO is a microcontroller board based on the ATmega328 (Datasheet). 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 a AC-to-DC adapter 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 Atmega8U2 programmed as a USB-to-serial converter. Revision 2 of the Uno board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU mode.


Microcontroller ATmega328
Operating Voltage 5V
Input Voltage (recommended) 7-12V
Input Voltage (limits) 6-20V
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 (ATmega328) of which 0.5 KB used by bootloader
SRAM 2 KB (ATmega328)
EEPROM 1 KB (ATmega328)
Clock Speed 16?MHz


  • 1x SainSmart UNO
  • 1x USB Cable

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