Version 1.1 is now the one available

Please see the differences in detail here but TLDR V1.0 was using both SPI1 and SPI0 while V1.1 uses only SPI0 for the operation ease. If you need the V1.0 , I still have a few and I can sell them if you message me.

What is it?

A multi protocol breakout HAT for Raspberry Pi that can work with all the models that have the 40 GPIO making this a versatile HAT for the maker in you plus the cheapest option to get into JTAG, SWDIO and so on.

Why did you make it?

I was sick and tired of using expensive brand's to flash my projects under windows and every single time I had to figure out what was wrong. What update was going to crash which part? Will it be the driver ? Maybe one of the softwares in the chain ? So I decied to try and use OpenOCD under linux as the Raspberry Pi is a great candidate to be used as an interface for it. Once I got all working ( on a RPI0W) I never looked back and it is very straight forward to get all working. I have included a complete guide in the documentation section below.

What makes it special?

Surely you can just use jumper wires and do the same thing but I like to have a breakout that eliminates the risk of miscounting the pins and so on ... I have broken out what I consider to be more than enough for a maker and that is : SPI0 , SPI1 with the posibility os using WP , JTAG, SWD, UART and I2C and I have added an RGB LED that can be controlled from bash or what ever you feel more happy to use as it is connected to 3 GPIO's. The idea is that if you have to run a script the LED will inform you about the states that script is in or if it finished . I have avoided to put any buttons on it as I rather prefer to run from a command line.

To use the protocols you have to understand a bit about them and also understand that all of them can't be used at once but that I assume comes as a given.

I have tested all the ports and they work perfectly well .

What software you use it with ?

For JTAG and SWD I personally use OpenOCD , for SPI I use flashrom and for UART and I2C I just run whatever I need in that moment but mostly minicom for UART and python scripts fro I2C .

What do I get if I but this board ?

A fulyl assembled board as you see in the picture. The adapters for SPI are not included in the purchase, they are in the pictures for showcase only.