7 ms·
We built a Bitcoin Keurig coffee maker this weekend
- zek 13y agoI was at the hackathon for most of the weekend and people were working on some really great projects. I think this Keurig was definitely the most ambitious though!
- dysruption 13y agoWOOO HACKBEANPOT
- 47377382829 13y ago0.0015 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.
- dsr_ 13y agoPerhaps BTC does have a liquidity problem.
- gatehouse 13y ago0.0015 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.
- rebel 13y agoThe 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.
- eddieroger 13y agoLess if you go the box-o'-cups-at-Costco route like I do. It can be economical if you don't mind just-OK coffee.
- mathgeek 13y agoThe Costco varieties are the same as the ones I buy anyway, so to me it's a win-win.
- Crake 13y agoI get mine from amazon for about $.50/each. Once I found a bunch on clearance at kroger's, and then I had $.10/cup coffee for about half a year.
- councilscheme 13y agohow 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?
- grey-area 13y agoOnly 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.
- Toucan 13y agoI'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.
- grey-area 13y agoJust out of curiosity, how hard is it to create fake coins if a vendor is not checking for confirmations at all?
- CalRobert 13y agoSo what happens with all the plastic cups after you've made your coffee?
- chrstphrhrt 13y agoTossing some of these in the trash appears to be only slightly worse than tea bags: http://myworldinacup.com/ http://myworldinacup.com/ Just ordered some to try. Also you can get a reusable filter basket and then grind and dose like a normal person. Was worried about the same thing when ordering a replacement for an aging Aeropress lately. IIRC Keurig's website says they care about the environment blah blah blah and have been "working on it" for a while, but no concrete promises. It's an always-on kettle with a semi-pressurized, single-serve coffee maker attached. PSA: nobody should buy the standard plastic K-Cups.
- btgeekboy 13y agoSome of them don't have the always-on kettle. Mine requires you to pour in water in for each serving, and the Brew button heats it up at that time.
- GhostHardware 13y agoNow all you need is to have mugs with qr code so that when you put it in, it automatically scans your qr code and gets payment from your bitcoin wallet (I have no idea if this is actually possible)
- flatline 13y agoRisky - is possible but you would basically be trusting the machine (or anyone else who scans the cup) not to steal all your money. You could limit the damage with a separate wallet I guess, but generally the payer should be the one initiating the transaction, actively and not passively. Maybe when M of N transactions are implemented, this type of thing would be more feasible?
- nja 13y agoFWIW, they won most innovative at the hackathon for this. Great job!
- qq66 13y agoI clicked the link hoping to see a coffee machine that used a Bitcoin mining rig as the heat source.