Browse products by EL9000 on Tindie

I myself pondered about building an ATmega328-based computer. Should it be based on Arduino Uno? Should it have a display shield? Text or graphic? M5Stack CardKB Mini Keyboard? 9V battery powered or...?

Well, forget all that now that the Cobalt 3 is out. Single-board beauty, a truly autonomous and pocket-sized DIY feast.

It is true that its BASIC is nowhere near Microsoft BASIC, but hey, now it's your turn to breathe more life into this fine ATmega328 gadget, and its BASIC sketch is like a manual on how.

Evgeny | Oct. 3, 2024

Very easy to assemble and fun to use

For KOKO, a retro game console kit DIY and hackable

If you have basic electronics/soldering skills, KOKO is very easy to assemble.

Either way, it's enjoyable to play with. Much recommended.

David | Sept. 25, 2020

Great Kit!

For Cobalt 3, a pocket computer DIY

The Cobalt 3 is my first ever computer kit. The documentation available online is fantastic. The color coded assembly guide that came with the kit was very helpful and straight forward. With very limited soldering experience I finished the kit in a few hours and it worked immediately. Thank you.

Severin | June 26, 2020

Great kit, fun project to put together and play around with

For Cobalt 3, a pocket computer DIY

Got this kit yesterday, and just had to put it together this morning. It's quite easy to solder together, the documentation is well written and it worked right on the first try. I was a tiny bit worried about the keyboard and all its solder points, but it came together super quickly.
I wish the BASIC on there could do a little more fun things, but that can probably still be extended. Either way, I'd totally buy it again 😍

Tindie

EL9000

Cobalt 3, a pocket computer DIY

KOKO, a retro game console kit DIY and hackable

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Terrific ATmega328-based computer!

Very easy to assemble and fun to use

Great Kit!

Great kit, fun project to put together and play around with