| General > General Technical Chat |
| Coffee machines revisited, with an emphasis on controllability |
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| MarkMLl:
This thread from about five years ago https://www.eevblog.com/forum/chat/suggestions-for-a-new-coffee-machine/ discusses coffee machines from a general POV, with everything from stovetop percolators to high-end "don't ask the price" machines mentioned. Can anybody comment on machines or ranges of machines that they are aware of, with an accessible serial/diagnostic port which allows their operation to be controlled and their status monitored? The standard bearer for this type of kit appears to be Jura, which are expensive but not eye-watering: https://hackaday.com/2016/01/28/hacking-a-coffee-machine/ https://hackaday.com/2019/04/26/make-that-special-cup-of-coffee-by-completely-tweaking-the-coffee-machine/ ...plus projects on Github etc. My thoughts are that starting with something like that, which at a minimum offer bean-to-cup and sometimes fancy recipes with milk delivery etc., it should be comparatively simple to add e.g. a carousel for different bean types (at a minimum, real vs decaff), and possibly to add overall control using something like Mycroft ( https://en.wikipedia.org/wiki/Mycroft_(software) ). MarkMLl |
| pcprogrammer:
No idea if it allows lots of control of a coffee machine, but a long time I made a card reader system to interface with a coffee maker machine that used the Wiegand protocol. https://en.wikipedia.org/wiki/Wiegand_interface The idea was to have the customers preference on the card so it must have been possible to control that specific machine, but I can't remember which machine it was. We are talking 1996-1997. |
| MarkMLl:
I think that one of the uses of the obfuscated Jura port is to interface with POS equipment... presumably they supply a detailed protocol manual to their licensees. MarkMLl |
| pcprogrammer:
I do remember that the company I did the work for was in contact with the manufacturer of the coffee machine and that they provided specifications, so yes, most likely proprietary. They also supplied a machine to modify and incorporate the board I developed into it. Was to accept smart cards. Might well be that I still have a proto board lying around :) No idea if there is an open standard for communicating with coffee makers by now. |
| MarkMLl:
--- Quote from: pcprogrammer on October 13, 2022, 01:10:59 pm ---No idea if there is an open standard for communicating with coffee makers by now. --- End quote --- Judging by the work that sundry Jura owners have put into it: unlikely. However what I'm interested in knowing at this point is whether there are any other manufacturers that have an externally-accessible diagnostic/control port making the machines hackable... my searching so far suggests not (unless, $deity help us, you get an iPad supplied as part of a consumables service with all control via "the cloud"). MarkMLl |
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