BareDuino V1 (classic)

BareDuino V1R3

Revision 3

When I began building robots I almost exclusively put together kits. Then I discovered the Arduino. The Arduino is a really popular electronics platform. Since then, I’ve made a LOT of projects that use the Arduino that I would like to make permanent. The problem is that it’s really expensive because an Arduino Uno costs about $30. Because the Arduino is open-source I thought: “Couldn’t I make a very cheap clone?”

So I started designing in eagle CAD. First I placed the base-parts: an atmega328, a 1K resistor for auto-reset functionality and a 16Mhz crystal with 2 capacitors.

Then I decided to add a

couple of other elements:

  • I wanted every pin on the atmega328 to have its own 5V and Ground pin. This will make it easier to plug in servo’s and other peripherals with a servo-connector.
  • I also added a pin-header with DTR, rx and tx to simplify the uploading of code.
  • A capacitor was added to the analog reference line
  • Then there was the power supply. Eventually i chose a 7805 5v regulator that accepts a input of 7-10 volts. I could’ve went with a LDO regulator, but this was cheaper.

When that was done, the etching started..

transparent printer sheetIn the etching tank

Done!
Bare PCBPopulated PCB
Here’s a video I made on the BareDuino v1:

And here you can see a video of the BareDuino in action:

The source files are released under BSD License at the GitHub repository.

Author: Niek Blankers Comments: 3 comments Date: 8 Nov 2011
Categories: Arduino, Atmega, BareDuino Tags: , , ,

There are 3 comments

  • ¬ Joel
    #30 May 3rd, 2014 at 9:11 am

    So, how much did it cost?

  • ¬ Niek Blankers
    #31 May 3rd, 2014 at 10:51 am

    That depends. For me, barely anything at all. I have access to PCB etching supplies, capacitors, crystal oscillators and resistors so those cost next to nothing. The most expensive part was the ATmega, which was only about €3.

  • ¬ ed
    #38 December 4th, 2015 at 4:33 pm

    well done but ofcourse today that still would be not worth it with an Arduino Uno clone costing around 2 euro and a a pro mini for 1.50 euro

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