Arduino Uno R3

The Arduino Uno R3 -China is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It features the Atmega16U2 programmed as a USB-to-serial converter. 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



  • ATmega328 microcontroller.
  • Input Voltage between 7 – 12V.
  • 14 Digital Inputs of which 6 provide a PWM (Pulse Width Modulated) Output.
  • 6 Analog Pins.
  • 40mA DC current per I/O pin.
  • 50mA DC current for 3.3V Pin.
  • 32KB Flash Memory (0.5KB used by the bootloader.
  • 2KB SRAM.
  • Microcontroller: ATmega328 .
  • Operating Voltage: 5V .
  • Input Voltage (limits): 6-20V.
  • Digital I/O Pins: 14 (of which 6 provide PWM output) .
  • DC Current per I/O Pin: 40 mA .
  • Flash Memory: 32 KB (ATmega328) of which 0.5 KB used by bootloader  .
  • EEPROM: 1 KB (ATmega328) .
  • Clock Speed: 16 MHz.

You can buy more components as like

Arduino mega 2560

Arduino Nano V3.0

Arduino I/O Expansion Shield

Voice Recognition Shield -3.0

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