mini Arduino idea

I have thought about minimizing the Arduino board, so called minimalist Arduino.  As I have already said before in this post, what I found in many cases was that I didn’t need the FTDI USB interface once the sketch was loaded, and I thought the Arduino board is kind of ‘big’ for its contents.

So here is a summary of my concept of mini Arduino compatible board.  Its name will be ‘JeonLab mini.’

  • 28-pin DIP ATmega328P with Arduino bootloader
  • Digital pins from 2 to 13 are arranged on one side
  • Analog pins from 0 to 5 are arranged on the other side along with the FTDI-USB connector for an external FTDI breakout board (e.g. from Sparkfun, Adafruit)
  • There is no reset switch, but header pins for RESET and GND are provided
  • A power LED and #13 LED
  • A 0.1uF capacitor for the auto-reset when uploading a sketch
  • Headers for power inlet (+5V and GND)
  • Small enough to fit in a small plastic box (Hammond 1551F, Digi-Key, or Mouser)

The PCB layout looks like this.
JeonLab mini v1.0 layout

And here is a picture showing both Arduino Duemilanove and the blue box.
Arduino and blue box


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