Arduino Pro Mini 328 - 5V 16MHz (DEV-11113)

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  • Arduino Pro Mini 328 - 5V 16MHz - SparkFun DEV-11113
  • Arduino Pro Mini 328 - 5V 16MHz - SparkFun DEV-11113
  • Arduino Pro Mini 328 - 5V 16MHz - SparkFun DEV-11113


Arduino Pro Mini 328 - 5V 16MHz - SparkFun DEV-11113 perfect for Arduino projects!

It’s blue! It’s thin! It’s the Arduino Pro Mini! SparkFun’s minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader. Arduino Pro Mini does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend the first-time Arduino users start with the Uno R3 or RedBoard. It’s a great board that will get you up and running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage (5V), lack of connectors, and USB off-board.
We really wanted to minimize the cost of an Arduino. In order to accomplish this, we used all SMD components, made it two layers, etc. This board connects directly to the FTDI Basic Breakout board and supports auto-reset. The Arduino Pro Mini also works with the FTDI cable but the FTDI cable does not bring out the DTR pin so the auto-reset feature will not work. There is a voltage regulator on board so it can accept voltage up to 12VDC. If you’re supplying unregulated power to the board, be sure to connect to the “RAW” pin and not VCC.
The latest and greatest version of this board breaks out the ADC6 and ADC7 pins as well as adds footprints for optional I2C pull-up resistors!
We also have a low-cost compatible clone version.


  • Length: 33mm (1.3")
  • Width: 18mm (0.7")


  • ATmega328 running at 16MHz with external resonator (0.5% tolerance)
  • 0.8mm Thin PCB
  • USB connection off board
  • Supports auto-reset
  • 5V regulator
  • Max 150mA output
  • Over-current protected
  • Weighs less than 2 grams!
  • DC input 5V up to 12V
  • Onboard Power and Status LEDs
  • Analog Pins: 8
  • Digital I/Os: 14

Schematic Diagram:

Arduino Pro Mini 328 - 5V 16MHz Schematic


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Additional Information

Part Number:
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7 Reviews

  • 4
    Title of review 720

    Posted by dave on 1st Jul 2016

    Tiny but perfect for whayt I wanted.

  • 5
    Title of review 719

    Posted by Daniel Sma on 3rd Dec 2014

    The Arduino Pro Mini is the best arduino for the job, I use it to interface with an sd card in order to play triggered audio for a use in a product at work. Its small form factor and large memory size means that its capable of fluid playback of audio will

  • 5
    Title of review 718

    Posted by Jon Harris on 19th Jul 2014

    Combine this with a Lillypad FTDI USB Converter, and you've got yourself the same as an Arduino Uno with a couple of extra ports. Bear in mind you'll be limited by some constraints, such as the 5v limitation, so you may have to do level shifting or some t

  • 5
    Title of review 717

    Posted by Remy on 14th Jul 2014

    Firstly I need to mention that this company offers fantastic customer service, and genuinely follows up any concerns, this is always great to see.The Arduino Pro Mini 328 - 5V/16MHz is a very versatile and superb bit of kit, I received my order promptly

  • 4
    Title of review 716

    Posted by Neil Green on 30th Jan 2014

    The only thing the Pro Mini really lacks is built-in serial communication, but there are holes on the board to solder in pins for connecting an FTDI adapter. This and the Arduino Micro are my two favourite microcontrollers.

  • 5
    Title of review 715

    Posted by christian on 10th Oct 2013

    Small and good! For any projects that need less space...Remember to buy a usb ftdi or just wire it up with an Arduino Uno :)

  • 5
    Title of review 714

    Posted by @Dexter on 14th Aug 2012

    This is the way to go when you take your project off the Uno and into the real world. It has the same functionality as the Uno, only in a much smaller, slimmer package that makes it ideal for integrating into larger projects.100mil pin spacing, easy to

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