View all updates Jun 12, 2018

Launch Announcement

I work with SPI devices all the time. Many times a day I’d find myself asking "what’s it doing now?". Because the problem with electronics is that it just sits there, giving no clue whether it’s completely idle or running flat out.

As it happens I love graphics, and have a particular fondness for optimizing graphic displays. So I decided to make something better: an SPI adapter that has a visible display. The display doesn’t have to be large to be useful, just enough to be able to do simple debug and let you know how much traffic is flowing.

Getting the graphics running was a huge motivator. As soon as the first waveforms were rendering, the project took on a life of its own.

Another encouragement was actually using the SPIDriver myself for work and finding that it really did make using SPI much easier. A lot of the incremental improvements in SPIDriver came about from putting it to real-world use.

If SPIDriver hits its target, I’ll know that a handful of people have a better tool on their bench, and maybe it’ll save them an afternoon of debug. It’s a pretty awesome feeling to have made something that people find useful.

$61,522 raised

of $2,700 goal

2,278% Funded! Order Below

Product Choices


SPIDriver Core

A SPIDriver, complete with a set of hookup jumpers.


SPIDriver Expert

A SPIDriver with hookup jumpers, an Arduino-style SPI adapter, a sweet 160x128 SPI LCD display, and an in-circuit flash programming clip.


Excamera Labs

I'm dedicated to building useful hardware and software, particularly where embedded systems meet graphics and imaging. Probably my best known public projects are the Gameduino series of game accessory boards, and the J1 CPU. I have benefited immensely from Open Source hardware and software, so I try to open source as much as I can.

James Bowman



PCBA Manufacturer

See Also

Subscribe to the Crowd Supply newsletter, highlighting the latest creators and projects: