ELLO 2M: A DIY Computer for Hobby and Education

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Nov

14

No Luck This Time

Well, it’s time for the first bad report… :-(

Received the production samples. Excellent build. In fact so good that it has created an unforeseen problem.

In the earlier prototypes I used to work with a different PCB factory which had more limited production capacity and less precise equipment. The result of that - working prototypes. This time the new factory has equipment which is apparently much better and has managed to run soldermask between the teeth of the keyboard comb pads. Result - keyboard not working unless some other techniques are used, such as additional rubber pads, etc. The reason for that is because the soldermask is taller than the exposed copper in the pads and the panel contacts can’t create the needed short in the comb. Grrr… :-(

I have fixed the PCB file now to force soldermask expansion (should have done that long time ago!), but now the big question in front of me - what to do with all those first batch manufactured systems with damn non-operation keyboard combs? Trying to think of a quick solution to patch them so people can receive them sooner. So far my ideas are circling around additional self-adhesive conductive rubber pads (tried them with success), or some sort of thin elastic conductive sheet to stick under the keyboard panel (no idea if such thing exists at all).

It is very frustrating problem that needs a quick and clever solution…

$21,145 raised

of $14,000 goal

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Jul 10

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Product Choices

$15

ELLO 2M Electronic Intro Kit

E-book with ideas, jumper wires and components, to get you started with prototyping on ELLO.


$40

ELLO 2M Electronic Experimenter Companion

E-book with ideas plus a board with various sensors and indicators, to see what ELLO is capable of.


$65

Just The Bare Boards

Receive six bare PCBs to build your own ELLO 2M, with supporting BOM and documentation.


$120

ELLO 1M

ELLO 1M is a miniaturized headless cut-down revision of ELLO 2M, for use with external display terminal. The ELLO 1M has no LCD, no keyboard and no battery. It will keep the prototyping space as well as full hardware compatibility with 2M. The PCB stack concept remains the same as well.


$210

ELLO 2M Assembly Kit

For those looking to get their hands dirty and build their own ELLO 2M, the full assembly kit is for you. The kit has all of the PCBs and components of the "Geek" version and is ready for your assembly!


$240

ELLO 2M Assembled

Receive an assembled ELLO 2M with universal keyboard lay-out, built-in BASIC, and built-in prototyping boards. The assembled Hacker XL version is signed by the creator.


$550

ELLO 2M Custom

Receive an assembled ELLO 2M with custom keyboard panel lay-out of your choice, built-in BASIC, and built-in prototyping boards.

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Credits

Yellow Beak Computer Ltd


Konstantin Dimitrov

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