MCM Electronics

Arduino Uno BoardMCM Part #: 83-13129  |  Arduino Part #: A000066

Arduino Uno Board 5 stars from 2 reviews.
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The Arduino Uno 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 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.

Product Description

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. Revision 3 of the board has the following new features:

  • 1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible both with the board that use the AVR, which operate with 5V and with the Arduino Duo that operate with 3.3V. The second one is a not connected pin, that is reserved for future purposes.
  • Stronger RESET circuit.
  • Atmega 16U2 replace the 8U2.
Specifications
  • 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

Product Reviews

  • "Great board, great update." by lubbersb on 3/21/2014
    Overall: 5 out of 5
    Value:
    Quality:

    I've used many Uno boards in the past, but am especially excited about one minor update; the pin labels are now also printed on the side of the headers, so event when a shield is stacked on top, it is easy to find the right I/O pins.

  • "Arduino Uno board" by bgcarl on 2/4/2014
    Overall: 5 out of 5
    Value:
    Quality:

    Exactly as described and plenty of technical info available. Very prompt shipping from MCM and excellent price. Great transaction

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Package Specifications & Dimensions
Weight:0.09 lbs.
Hazardous:No
Warranty:30 days
Need to Return?
Length:3 in.
Width:2.5 in.
Height:0.5 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No
Catalog Pages
Catalog/Page:

MCM Cat 57, Page 665

MCM Cat 56, Page 330

Mfr. Info

Arduino Logo
Mfr. Name:Arduino
Mfr. Part Number:A000066