If set to ON, the regulator enable pin is connected to 3.3V which turns the regulator on whenever it is connected to the Zipit. Another jumper sets the regulator to ON or EN. A solder jumper is provided to set Host port power from DC_IN or 5V Regulator. This (optionally) powers the USB Host port and is most useful when running the Zipit on battery. Just like the v1 board, the new mini uses the same TPS61240 IC for 3.3V to 5V boost power. Gerbers can be found in the z2-breakout github repo Parts list and board are available on the OSH Park Shared Project Page. Also, this board has room for an optional tantalum capacitor behind the USB Host port.

I figured the holes would be a nice addition. buZz from #zipit irc has made a nice little 3D printable docking station for the mini Zipit breakout board. Update 2: I made yet another revision of the board that removes the snap off holes and adds two mounting holes. Parts list and board are on the OSH Park Shared Project Page. This can be used for anything you like, but I added a tiny serial GPS module from SparkFun that fits perfectly over the USB Host port. The MOSFET is P Channel which means it is ON by default and writing a 1 to GPIO 51 will turn it off.

Update: I made a new v2.1 board which has a MOSFET that switches 3.3V ON or OFF via GPIO 51 to a through hole in the center of the board. There is a USB Host port (w/5V boost regulator), MicroUSB device port (charging input), 1.27mm breakout header for all 36 pins and special snap off sub-boards (if desired). The new board measures 75.11mm x 16.69mm which makes it sit much closer to the Zipit but extends further from side to side. Finally, I found the time to make a new board that is smaller and a better fit for the Zipit. I think the buzz may have finally wore off although you can still find Zipits on eBay occasionally and hinv still has some for sale. I’ve considered making a new board since they all sold out but there isn’t really a Zipit market anymore. They’ve all found new homes and hopefully some neat projects. It’s been a year and a half since I came out with the first Z2 Breakout Board.

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