Homemade Washer/Dryer

How does one program a washer/dryer? I'm sure it should be simple enough to build one with enough resources, but how difficult will it be to program a modern washing machine?

>>4499 just plug in a random raspberry pi bro

Have you tried make --washboard Don't forget to check for [code] lib-drying-rack-0.0.1 [code] libraries before building, or you will lack the drying functionality.

They have practically no logic, it's just a few time relays and a some sensor checks with GOTO ERROR here and there if you have a fancy machine. I'd rate it "not difficult at all, you don't even need a microcontroller".

most home appliances with "smart" features work the same as the old style except the buttons and dials that control the relays are replaced with pins on a microcontroller. seems annoying to debug (especially without a schematic) but not conceptually difficult.

>>4513 Just rip out the micro and control that stuff directly

find JTAG or ISP header and go from there

What do you even plan to do? Set your own wash cycles not available on whatever cheap rundown model you have?

>>4514 yeah you could do that. i thought OP wanted to add a microcontroller to a "dumb" washing machine. either way the procedure is just: find the wires leading to the relays > figure out what voltages you need to send to make it do stuff > program a microcontroller or design a circuit to supply those voltages.

>>4515 >find JTAG or ISP header and go from there did you meant SPI?

>>4525 I think he was talking about an avr in system programmer.

>>4499 Is it a dumb washer that basically just acts whenever you move the dials or is it a smart one that can communicate with your phone?

not very. you could probably do it without any kind of microcontroller to be honest, the logic gates to do that are pretty simple. If you wanted "auto-sensing" it might be slightly more complicated(might need to do real arithmetic) but still should be easy enough the hard part would be tuning it to make the different speeds meaningful but thats just a lot of trial-and-error, not very hard.

https://www.lincrevable.com/en/ Some frogs "invented" a "repairable" washing machine. It's a crappy front-loader, but at least there is progress. it's not like already existing models are not 99% reskins and copies of each other, assembled at one factory and branded with different color plastic molds. The problem is, that few companies control the production and standards, meaning we get no replacement parts after 10 years, unknown reliability stemmed from both poor non-peered engineering and planned obsolescence, and unknown performance characteristics culled down by "energy efficiency" standards where machine using less water trashes clothes faster meaning people have to buy newer rags more often, with their production cycle consuming more water than overall saved by such machines, etc. Also a big obstacle to user-repairability are existing repairsman cliques with medieval guild-secret gatekeeping to such degree when it's impossible to find schematics for anything but 10 year old Thinkpads in the open, you have to register on some chinese or russian forums and earn karma or some crap by contributing to them.