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I hacked my washing machine

nexy.blog

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Re: I hacked my washing machine

#31

Post by GuB-42 »

If you like these kind of posts, maybe you should go to https://hackaday.com/ it is all articles like this every day, though usually more on the hardware side.

Here is one in the same vein: https://hackaday.com/2023/04/15/internet-of-washing-machines... => https://tratt.net/laurie/blog/2023/displaying_my_washing_mac...

Re: I hacked my washing machine

#32

Post by lillecarl »

thehappypm wrote: post #30
lillecarl wrote: post #21

Practical engineer in me screams: SIMPLIFY, SIMPLIFY, SIMPLIFY. Just plug the washing machine into a smartplug and alert when power draw drops to idle for more than X minutes.

My washing machine also makes a stupid chime melody thing. A microphone that listens for it would also be a simple way to do it.

I would go for the "monitor a number" before "sound recognition", unless you're talking about just using an amplifier to bring the chime into the entire house.

Re: I hacked my washing machine

#33

Post by imglorp »

thehappypm wrote: post #30
lillecarl wrote: post #21

Practical engineer in me screams: SIMPLIFY, SIMPLIFY, SIMPLIFY. Just plug the washing machine into a smartplug and alert when power draw drops to idle for more than X minutes.

My washing machine also makes a stupid chime melody thing. A microphone that listens for it would also be a simple way to do it.

Or a current sensing transformer around its power cord.

Re: I hacked my washing machine

#34

Post by pfych »

IncreasePosts wrote: post #17
madaxe_again wrote: post #3

Respect, but this is kinda the hard way - I just plugged mine (dumb machine, not smart) in via an energy metering plug, and when energy use drops to less than 10W for more than 2 minutes, it’s done - very simple homeassistant automation. Convenient for me as the machine is 500m from the house.

Couldn't you just set a timer for 45 minutes, or whatever? Is there that much variance in load times?

Some washing machines (mine at least) have some "smart" features that adjust the wash time depending on some factors. Nothing more annoying than coming to the laundry after my phone alarm goes off, and seeing the timer on my washing machine go UP(!!!) from 0:01 to 0:02 ...

Re: I hacked my washing machine

#35

Post by drng »

JadedBlueEyes wrote: post #18
madaxe_again wrote: post #3

Respect, but this is kinda the hard way - I just plugged mine (dumb machine, not smart) in via an energy metering plug, and when energy use drops to less than 10W for more than 2 minutes, it’s done - very simple homeassistant automation. Convenient for me as the machine is 500m from the house.

Nex is a cybersecurity student in a house of similar people, they're gonna take every way :3 quote: > The plan is, in future, since we can't hack something that doesn't have a brain, to instead attach a brain to it. The dishwasher is easy, we can just whack that on a smart plug and monitor when the power use surges and drops. The dryer is a bit more difficult, since they pull a LOT of power, and smart plugs typically…

Vibration sensor is exactly what I did, for exactly that reason. Zigbee sensor + home assistant and a little bit of timer logic to manage the state

Re: I hacked my washing machine

#37

Post by m463 »

timedout_uk wrote: post #22
lillecarl wrote: post #21

Practical engineer in me screams: SIMPLIFY, SIMPLIFY, SIMPLIFY. Just plug the washing machine into a smartplug and alert when power draw drops to idle for more than X minutes.

but where's the fun in that :P

The fun is that you can reuse the setup for a japanese toilet, monitor energy use and use the data to play applause sounds in the bathroom after use.

Re: I hacked my washing machine

#38

Post by russdill »

lillecarl wrote: post #21

Practical engineer in me screams: SIMPLIFY, SIMPLIFY, SIMPLIFY. Just plug the washing machine into a smartplug and alert when power draw drops to idle for more than X minutes.

Can confirm this is super easy. It has the additional advantage of monitoring power usage and it allows you to cut power if the leak sensor under it goes off

Re: I hacked my washing machine

#39

Post by timedout_uk »

firesteelrain wrote: post #36

Assuming the only reason this works is because the washing machine and app don’t use TLS 1.2 and instead some homegrown Caesar cipher? Otherwise, you would need some MitM style attack?

The washing machine doesn't use TLS at all and instead opts to just XOR data, explained later in the post.

Re: I hacked my washing machine

#40

Post by firesteelrain »

timedout_uk wrote: post #39
firesteelrain wrote: post #36

Assuming the only reason this works is because the washing machine and app don’t use TLS 1.2 and instead some homegrown Caesar cipher? Otherwise, you would need some MitM style attack?

The washing machine doesn't use TLS at all and instead opts to just XOR data, explained later in the post.

I understand. I was saying how this could have been avoided by the manufacturer
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