OMFG; I am in Perth, I have the same system, the very same problem and solved it almost the same way and was in the process of writing it up. The system uses RS422, with a base64 encoded AES key in the aaservice binary, and I was contemplating building an esp32 based open source implementation of the controller. That's a crazy weird coincidence.
Air Con: $1697 for an on/off switch
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Re: Air Con: $1697 for an on/off switch
#112OMFG; I am in Perth, I have the same system, the very same problem and solved it almost the same way and was in the process of writing it up. The system uses RS422, with a base64 encoded AES key in the aaservice binary, and I was contemplating building an esp32 based open source implementation of the controller. That's a crazy weird coincidence.
Re: Air Con: $1697 for an on/off switch
#113I’m contemplating writing an end-to-end manual for a set of laser machines I maintain, including missing schematics, gerber/eagle/fusion files and binaries for the MCU, how to flash it etc. Some parts which are required for servicing are only handed to manufacturer-employed technicians (I obtained those too from retired people). It’s been a riot to get everything and to learn how to disassemble, troubleshoot, fix, reassemble these machines.
But am I ever pissed at the manufacturer and the aftermarket for screwing people over. The markups on simple items are insane and they remove tags and IDs so you don’t know what the parts are. At this point I don’t care what’s proprietary information and what isn’t.
Re: Air Con: $1697 for an on/off switch
#114> For whatever reason (I suspect some sort of storage failure) everyone’s tablets die around the same time. What a fun, completely coincidental quirk that that time appears to fall outside the warranty window, hey?
> What a fun, completely coincidental quirk that that time appears to fall outside the warranty window, hey? Isn't that the point of the warranty? They tell you they think the product will last for X years, and then it lasts about X years, just like they warranted.
Honestly, I think something needs to be done so that companies are held liable for expensive products failing and needing expensive repairs after a year or two.
Re: Air Con: $1697 for an on/off switch
#115Earlier quoted context omitted.
Incidentally, if you root your tablet you can just change the build.MODEL to "MyAir5" and everything will work on a third party tablet.
Oh, and you just need one of these and a TTL to RS422 converter off aliexpress to replicate the interface: https://www.aliexpress.com/item/1005005918675239.html The connectors on the small RJ45 daughter board are JST-SH 1.0 The yellow lead puts out 4.2v to replicate a Li-Ion battery (as far as I can tell). You can ignore this. Red is positive Black is negative Green is usb d+ Blue is usb d-
Re: Air Con: $1697 for an on/off switch
#116OMFG; I am in Perth, I have the same system, the very same problem and solved it almost the same way and was in the process of writing it up. The system uses RS422, with a base64 encoded AES key in the aaservice binary, and I was contemplating building an esp32 based open source implementation of the controller. That's a crazy weird coincidence.
Shame on this manufacturer.
Re: Air Con: $1697 for an on/off switch
#117OMFG; I am in Perth, I have the same system, the very same problem and solved it almost the same way and was in the process of writing it up. The system uses RS422, with a base64 encoded AES key in the aaservice binary, and I was contemplating building an esp32 based open source implementation of the controller. That's a crazy weird coincidence.
For a small place there's a lot of sandgropers on HN somehow
https://www.quora.com/Why-are-West-Australians-called-sandgr...
Re: Air Con: $1697 for an on/off switch
#118Earlier quoted context omitted.
There's an easy hack for the contact lens (and maybe glasses?) situation. There is a consumer protection law meant to ensure eye doctors can't stop you from using any retailer you want (otherwise they'd essentially make themselves your retailer), and it works like this: You place an order with the retailer (online retailers typically allow you to simply type in your prescription values when adding lenses to your onli…
This sounds too good to be true. Having to get a prescription to get contacts is insane…
Trial and error? I guess that might work if you have a simple correction (no astigmatism).
Re: Air Con: $1697 for an on/off switch
#119Earlier quoted context omitted.
Reminds me how, in USA, it’s the only civilized nation I’ve been to where you must have a prescription to purchase contacts and glasses. Everywhere else I’ve been will just sell you whatever magnification you need at the pharmacy. Obviously there is some acceptable line here, but I think the States handles this decently well enough. In Austin where I live you can get what is called a “homeowners permit” in a lot of c…
There's an easy hack for the contact lens (and maybe glasses?) situation. There is a consumer protection law meant to ensure eye doctors can't stop you from using any retailer you want (otherwise they'd essentially make themselves your retailer), and it works like this: You place an order with the retailer (online retailers typically allow you to simply type in your prescription values when adding lenses to your onli…
Re: Air Con: $1697 for an on/off switch
#120Ugh. The whole "smart aircon" industry needs a good-sized asteroid wiping them out of the existence. There is a very real need for modern variable-speed units, and vendors just keep fucking it up by using proprietary protocols locked into their ecosystem. TRANE in the US is similar. And this is really annoying because variable-speed pumps solve all the problems with short cycling and oversized systems.
You think this is bad? Try swimming pool equipment.