Now for my next distraction, I am going to design and then get some boards made up to take up my USBizi144 chips.
I am also going to try Kicad at the same time (because I think that Eagle won’t give me the boardspace I want/need).
Here’s the intent. Create a board that will have a USBizi144 and a Wiz5100 (rather than a Wiz811/812 module socket as the Rhino has). It will have USB Host, will have Micro USB connector for programming. It will have a micro SD card holder. Lots of IOs exposed. I will also be adding some area for an I2C eeprom (DIP8 package rather than SMT, because that’s what I have:)). Form factor is not set on any particular layout at this stage, perhaps a DIP layout might work. It certainly won’t have Arduino layout pins
I will be sourcing parts based on my local supplier (Element 14 Australia) rather than digikey/mouser. I will also be making sure I get parts that while they’re surface mount, they’ll be suitable for hand soldering. I will at least initially intend to get the boards made through Laen or a similar small-run prototyping service.
If anyone has any suggestions about what does or does not work on current boards (Domino, Rhino, or even Panda/Panda2) or other suggestions about what this should look like, feel free to post away. If you have done this exercise yourself and have plans you can share, please also do that !
The end-point I see is this design would also be publically available for anyone else to take and enhance.
One question I am sure that is on everyone’s minds, why, when you can get a Cerb40 for not much more than peanuts? Well again, I have a few USBizi144’s and Wiz5100’s in stock and want to use them, plus its an opportunity to do more than just muck around with a design but to actually make something I will put to use.