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A Minimum Viable Computer, or Linux for $15

bbenchoff.github.io

11–20 of 408 posts

Re: A Minimum Viable Computer, or Linux for $15

#11

> That’s about it. Could you do all of this with a smartphone? Yeah, kinda, if you root prepaid Android phone, but even that would cost more than $30. You can almost certainly do better than $30 on local marketplaces, or by asking friends if they have a disused smartphone sitting around. reusing is absurdly cost efficient

One of my old smartphones and a portable/folding keyboard would be my pick.

I do love the look of the form-factor though. Want to need it.

Re: A Minimum Viable Computer, or Linux for $15

#13
post #6
post #3

Two things: I'm not clear on why the first one would cost $10k. The enclosure, maybe? If he were going to sell these, the rule of thumb I heard was to charge the cost of parts x 10. (Edit: maybe a factor of 2? I forget.)

I was wondering the same thing. PCBs are pretty cheap at this size, and the components wouldn't be THAT much more expensive to grab in smaller quantities. If someone would get a group buy started just for the components and 3d case files I'd hapilly sign up and 3d print the thing.

I assume it's tooling costs for the custom enclosure + rubber membrane but I too was confused why that was never clarified.

Re: A Minimum Viable Computer, or Linux for $15

#15
post #3

Two things: I'm not clear on why the first one would cost $10k. The enclosure, maybe? If he were going to sell these, the rule of thumb I heard was to charge the cost of parts x 10. (Edit: maybe a factor of 2? I forget.)

Would be nice if he broke out the $10k. My guess is mostly the cost of an injection mold for the enclosure.

Re: A Minimum Viable Computer, or Linux for $15

#17
post #7

This is nice. This is a simple, straightforward design, and a reasonably convenient form factor. Two biggest limitations are RAM and wireless interfaces, or rather lack thereof. This thing has less RAM than my router (admittedly a $70 box), and has neither WiFi nor BT. It does not seem to have many GPIO pins, too. With the amount of RAM installed, it's mostly a handheld terminal, and maybe a handheld console with emu…

Well said. It's a great project and impressive execution at $15!

> While this is admirable as a proof of concept, I suspect that moving the price point up to, say, $30 could give a much more useful and hacker-friendly device.

I agree. I think this project proves that ultra low cost is viable. Now relaxing the constraints a bit to add RAM and WiFi could iterate it right into an optimal spot.

I wouldn't want to go much farther than RAM and WiFi, though. It's too easy to let these projects turn into a slippery slope.

Re: A Minimum Viable Computer, or Linux for $15

#18
post #15
post #3

Two things: I'm not clear on why the first one would cost $10k. The enclosure, maybe? If he were going to sell these, the rule of thumb I heard was to charge the cost of parts x 10. (Edit: maybe a factor of 2? I forget.)

Would be nice if he broke out the $10k. My guess is mostly the cost of an injection mold for the enclosure.

Mold for the silicon keyboard - the first five keyboards is going to be about $6k. After that, each keyboard is about a dollar a piece.

Same with the plastic enclosure.

Re: A Minimum Viable Computer, or Linux for $15

#19
post #7

This is nice. This is a simple, straightforward design, and a reasonably convenient form factor. Two biggest limitations are RAM and wireless interfaces, or rather lack thereof. This thing has less RAM than my router (admittedly a $70 box), and has neither WiFi nor BT. It does not seem to have many GPIO pins, too. With the amount of RAM installed, it's mostly a handheld terminal, and maybe a handheld console with emu…

As long as wifi over USB is supported, why overcomplicate the core hardware? Sell a dongle as an add on option and make a little profit from it.

Re: A Minimum Viable Computer, or Linux for $15

#20
post #3

Two things: I'm not clear on why the first one would cost $10k. The enclosure, maybe? If he were going to sell these, the rule of thumb I heard was to charge the cost of parts x 10. (Edit: maybe a factor of 2? I forget.)

It's going to be tooling for the enclosure, and if there is other NRE to be considered for PCB testing (ICT, solder stencil, etc).

With a $15 BoM cost, using a domestic contract manufacturer, this would probably come out to be no cheaper than $30/unit with very decent volumes, and that doesn't factor in your profit. Need to remember to pay someone to assemble it and test it.

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