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We built a Bitcoin Keurig coffee maker this weekend

hackthebeanpot.com

1–10 of 21 posts

Re: We built a Bitcoin Keurig coffee maker this weekend

#7

0.0015 BITCOIN?! ... for Keurig coffee ? I'm sorry but I'm not spending more in bitcoin on mere Keurig coffee than an amount I might be able to GPU mine with a spare laptop in a weekend.

0.0015 Bitcoin = 850 Dogecoin (I just looked it up) ... less than a day of mining on mid-to-high-end current or last gen AMD Cards (79XX, or R9-280X+).

GPU mining Bitcoin has been unprofitable for like over a year.

Re: We built a Bitcoin Keurig coffee maker this weekend

#8

0.0015 BITCOIN?! ... for Keurig coffee ? I'm sorry but I'm not spending more in bitcoin on mere Keurig coffee than an amount I might be able to GPU mine with a spare laptop in a weekend.

The amount of time it takes you to create a US Dollar isn't how you would measure the cost of something. It's strictly based on the value of that item. And with .0015 Bitcoin being equivalent to just over $1 USD, it's not much markup. A k-cup can easily cost $.75/each.

Re: We built a Bitcoin Keurig coffee maker this weekend

#9

how many confirmations would this wait for before dispensing? i.e. how long does it take from me paying for the coffee before I get it?

Only twenty minutes or so, so the coffee might be a bit lukewarm, but it's ok as you'll be living in the future!

Seriously though, this is a really cool fun hack, but I doubt it is meant to be actually useful, or that bitcoins will be ready for vending machines any time soon.

Re: We built a Bitcoin Keurig coffee maker this weekend

#10

how many confirmations would this wait for before dispensing? i.e. how long does it take from me paying for the coffee before I get it?

I'm not sure if you're being serious or not, but the cost of double spending is vastly higher than the value of the coffee.

The risk of accepting on 0 confirmations is probably lower than that of accepting fake currency or the cost of processing a credit card.

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