After the success of my Arduino Uno I2C Master board, I started thinking that I could improve the board. Well ... make it more extensible for one thing, and allow me to use the board for other stuff as well. I figured if I could break out the pinouts of the ATMEGA328P-PU, that I could have a board that I could use for more than just the I2C Master, but that I could use for that purpose too. Also, I could add and ICSP header to the board so that I would have less juggling of chips and boards.
That became my goal for another breakout board/Arduino Uno self-build.
The BOM for this instructable are as follows:
Like the bulk of my breakout circuits, I'll be mounting the board on an acrylic prototype board.
Pretty much all of the parts for this instructable were bought from eBay with the following exceptions: