Tinytua in lua

[Torinth]

Hi there! I work a lot with qsys for centralized integration and control of many devices and one thing they do not have a plugin for is controlling Tuya devices locally. The problem is their language of choice is lua. I figured out how to write a lua script to use their cloud integration for a single customer to control one device through the cloud and realized that only works for a 1 month trial.

I have the lua code to do the authentication and getting data about the device including local keys and I have the ability to use tcp sockets but I am having trouble deciphering what I need to just make a single request to set switch_1 to true.

Would it be possible to get help with writing this in lua or possibly a way to port the python library to lua?

Qsys is a world class integration system so I do think it would be a good thing to have Tuya control in it.

[uzlonewolf]

It's very much non-trivial. Depending on the protocol version that particular device uses you will need a combination of md5, CRC32, HMAC-SHA256, AES-ECB and AES-GCM functions to properly encrypt the payload to control the device. Some devices also require a 3-way session key negotiation as well. You're looking at a couple thousand lines of code at a minimum.

[Torinth]

I’m looking at tailoring a specific on call (don’t need to send off because if inching) for a single specific device. If I know which version and protocol that device needs would it turn into a lot less code? I do think a full library that is supported by qsys would be beneficial but in my specific case I just need to send on to a very specific device

[uzlonewolf]

It's going to depend on the device version. If it's v3.1 or v3.3 then you can pre-compute everything and just send the command. v3.4 and v3.5 use per-session keys and will require full crypt libraries.

[Torinth]

Qsys lua has access to all of that. I’m already using hmac 256 and sha256 to encrypt the api calls. I think when using the tinytua server app I saw 3.3 but it is something I can verify. It’s a couple years older kinda custom device for a large foam party system that hasn’t been updated in awhile. If that is something I could find out would it be possible getting help understanding which byte arrays to construct and process to send this one command?

…

________________________________ From: uzlonewolf ***@***.***> Sent: Thursday, April 23, 2026 9:17:14 PM To: jasonacox/tinytuya ***@***.***> Cc: Torinth ***@***.***>; Author ***@***.***> Subject: Re: [jasonacox/tinytuya] Tinytua in lua (Discussion #702) It's going to depend on the device version. If it's v3.1 or v3.3 then you can pre-compute everything and just send the command. v3.4 and v3.5 use per-session keys and will require full crypt libraries. — Reply to this email directly, view it on GitHub<#702?email_source=notifications&email_token=AB5II2T2STL5HC7DXLK33Z34XLFCVA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRWHE2DOMZVUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVRTG633UMVZF6Y3MNFRWW#discussioncomment-16694735>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AB5II2UAMKX3OCOBA24TM5D4XLFCVAVCNFSM6AAAAACYESHCY6VHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTMNRZGQ3TGNI>. Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS<https://github.com/notifications/mobile/ios/AB5II2RMRC4VTX2A743XJFT4XLFCVA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRWHE2DOMZVUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVJTG633UMVZF62LPOM> and Android<https://github.com/notifications/mobile/android/AB5II2S3AKB6RGBDV2WKLBD4XLFCVA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRWHE2DOMZVUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVZTG633UMVZF6YLOMRZG62LE>. Download it today! You are receiving this because you authored the thread.Message ID: ***@***.***>

[uzlonewolf]

I't been a while since I've looked a v3.3 device, but IIRC you can just send the command using the command-line version of TinyTuya with debug mode turned on, and then just copy-n-paste the resulting encrypted command. I.e.

~$ python3 -m tinytuya -d on --id 'eb...5'
...
DEBUG:building command 10 payload=b'{"gwId":"eb...5","devId":"eb...5","uid":"eb...5","t":"1772938793"}'
DEBUG:sending payload
DEBUG:payload encrypted=b'000055aa000000010000000a00000088967e97752542efb0b836345418208f37c974e77fe269c282a01268503b968667126c40c78a0077824f51f5e73433b2dc8d05aee30f7b3d38c4750c625df5ff986028a4b8a72c9a4846e351ca43ca2433cc74e77fe269c282a01268503b96866718eea7843565a5fd9701fe4d70b2f9395b9ac8ada16ef18e5c257ba819df3f58fa1ee7060000aa55'
...

That 'DEBUG:payload encrypted' line is the entire TCP packet encoded in hex - just open a connection to the device and send it (after hex->binary conversion of course).

[uzlonewolf]

Edit to add: command line will look something like python3 -m tinytuya -d on --id 'eb...5'

[Torinth]

Awesome thank you very much! I can definitely run that and see what to send. I really appreciate the help!

…

________________________________ From: uzlonewolf ***@***.***> Sent: Thursday, April 23, 2026 9:34:31 PM To: jasonacox/tinytuya ***@***.***> Cc: Torinth ***@***.***>; Author ***@***.***> Subject: Re: [jasonacox/tinytuya] Tinytua in lua (Discussion #702) Edit to add: command line will look something like python3 -m tinytuya -d on --id 'eb...5' — Reply to this email directly, view it on GitHub<#702?email_source=notifications&email_token=AB5II2S2M7PBQFG36W6FFI34XLHDLA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRWHE2DQNRYUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVRTG633UMVZF6Y3MNFRWW#discussioncomment-16694868>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AB5II2RTBMNEKLGQZVP36DD4XLHDLAVCNFSM6AAAAACYESHCY6VHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTMNRZGQ4DMOA>. Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS<https://github.com/notifications/mobile/ios/AB5II2UBM6KTMFXOLRPBM2D4XLHDLA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRWHE2DQNRYUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVJTG633UMVZF62LPOM> and Android<https://github.com/notifications/mobile/android/AB5II2XWSIE7AIX6CFWU4VD4XLHDLA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRWHE2DQNRYUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVZTG633UMVZF6YLOMRZG62LE>. Download it today! You are receiving this because you authored the thread.Message ID: ***@***.***>

[Torinth]

Do the local keys expire and have to be re freshed?

…

________________________________ From: Jason Rainwater ***@***.***> Sent: Thursday, April 23, 2026 9:35:50 PM To: jasonacox/tinytuya ***@***.***>; jasonacox/tinytuya ***@***.***> Cc: Author ***@***.***> Subject: Re: [jasonacox/tinytuya] Tinytua in lua (Discussion #702) Awesome thank you very much! I can definitely run that and see what to send. I really appreciate the help!

________________________________ From: uzlonewolf ***@***.***> Sent: Thursday, April 23, 2026 9:34:31 PM To: jasonacox/tinytuya ***@***.***> Cc: Torinth ***@***.***>; Author ***@***.***> Subject: Re: [jasonacox/tinytuya] Tinytua in lua (Discussion #702) Edit to add: command line will look something like python3 -m tinytuya -d on --id 'eb...5' — Reply to this email directly, view it on GitHub<#702?email_source=notifications&email_token=AB5II2S2M7PBQFG36W6FFI34XLHDLA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRWHE2DQNRYUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVRTG633UMVZF6Y3MNFRWW#discussioncomment-16694868>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AB5II2RTBMNEKLGQZVP36DD4XLHDLAVCNFSM6AAAAACYESHCY6VHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTMNRZGQ4DMOA>. Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS<https://github.com/notifications/mobile/ios/AB5II2UBM6KTMFXOLRPBM2D4XLHDLA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRWHE2DQNRYUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVJTG633UMVZF62LPOM> and Android<https://github.com/notifications/mobile/android/AB5II2XWSIE7AIX6CFWU4VD4XLHDLA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRWHE2DQNRYUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVZTG633UMVZF6YLOMRZG62LE>. Download it today! You are receiving this because you authored the thread.Message ID: ***@***.***>

[uzlonewolf]

No, they'll only change if you re-pair the device using the app.

[Torinth]

Awesome thanks!

…

________________________________ From: uzlonewolf ***@***.***> Sent: Friday, April 24, 2026 8:13:57 AM To: jasonacox/tinytuya ***@***.***> Cc: Torinth ***@***.***>; Author ***@***.***> Subject: Re: [jasonacox/tinytuya] Tinytua in lua (Discussion #702) No, they'll only change if you re-pair the device using the app. — Reply to this email directly, view it on GitHub<#702 (reply in thread)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AB5II2TAMP5RNCX2EU2ZYPL4XNSBHAVCNFSM6AAAAACYESHCY6VHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTMNZQGE4TMNY>. Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS<https://github.com/notifications/mobile/ios/AB5II2VWQZ6I2IJHLH7I5Z34XNSBHA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRXGAYTSNRXUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVJTG633UMVZF62LPOM> and Android<https://github.com/notifications/mobile/android/AB5II2VRCTBDGE2BJEUTTHL4XNSBHA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRXGAYTSNRXUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVZTG633UMVZF6YLOMRZG62LE>. Download it today! You are receiving this because you authored the thread.Message ID: ***@***.***>

[Torinth]

Well that solution worked perfectly! I was able to use the debug payload to create what I needed in qsys to turn the device on. Thanks a bunch for the help!

…

________________________________ From: Jason Rainwater ***@***.***> Sent: Friday, April 24, 2026 8:19:01 AM To: jasonacox/tinytuya ***@***.***>; jasonacox/tinytuya ***@***.***> Cc: Author ***@***.***> Subject: Re: [jasonacox/tinytuya] Tinytua in lua (Discussion #702) Awesome thanks!

________________________________ From: uzlonewolf ***@***.***> Sent: Friday, April 24, 2026 8:13:57 AM To: jasonacox/tinytuya ***@***.***> Cc: Torinth ***@***.***>; Author ***@***.***> Subject: Re: [jasonacox/tinytuya] Tinytua in lua (Discussion #702) No, they'll only change if you re-pair the device using the app. — Reply to this email directly, view it on GitHub<#702 (reply in thread)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AB5II2TAMP5RNCX2EU2ZYPL4XNSBHAVCNFSM6AAAAACYESHCY6VHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTMNZQGE4TMNY>. Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS<https://github.com/notifications/mobile/ios/AB5II2VWQZ6I2IJHLH7I5Z34XNSBHA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRXGAYTSNRXUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVJTG633UMVZF62LPOM> and Android<https://github.com/notifications/mobile/android/AB5II2VRCTBDGE2BJEUTTHL4XNSBHA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNRXGAYTSNRXUZZGKYLTN5XKMYLVORUG64VFMV3GK3TUVZTG633UMVZF6YLOMRZG62LE>. Download it today! You are receiving this because you authored the thread.Message ID: ***@***.***>