# \[APP\]\[Pro\] Global Caché - Connect IR, Serial, and Relay to Almost Any Network
**URL:** https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338
**Category:** Apps
**Created:** [October 1, 2018, 8:41pm UTC](https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338 "2018-10-01T20:41:43Z")
**Posts on this page:** 9
**Page:** 5
### Author:  [@Viks](https://community.homey.app/u/Viks)
#### Post date: [April 18, 2024, 11:29pm UTC](https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338/90 "2024-04-18T23:29:05Z")
Global Cache app is now updated by its author and is compatible with SDK3. Version 1.2.1 is already published in appstore:
> **[Global Caché](https://homey.app/no-no/app/com.globalcache/Global-Cach%C3%A9/)**
>
> Connect IR, Serial, and Relay to Almost Any Network
Great news!
And many thanks to @pln for prompt update and great work!
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### Author:  [@Rex\_Smith](https://community.homey.app/u/Rex_Smith)
#### Post date: [May 13, 2024, 3:16pm UTC](https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338/91 "2024-05-13T15:16:50Z")
I am so grateful this App is active again. I am using an iTach WF2SL. I have configured the App for ON and OFF commands and created a device. When I create a flow and send the ON command I get an error. “client is not defined”. What am I doing wrong?
Thanks so much,
Rex
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### Author:  [@pln](https://community.homey.app/u/pln)
#### Post date: [May 15, 2024, 8:34pm UTC](https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338/92 "2024-05-15T20:34:42Z")
Unfortunately I don’t have an WF2SL to test with so it’s a bit of a experiment. I found an issue though and pushed a fix. Please try the new 1.2.2 version and let me know how it goes 🙂
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### Author:  [@Rex\_Smith](https://community.homey.app/u/Rex_Smith)
#### Post date: [May 16, 2024, 7:56pm UTC](https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338/93 "2024-05-16T19:56:51Z")
Would you like me to send you one? I would be glad to.
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### Author:  [@Rex\_Smith](https://community.homey.app/u/Rex_Smith)
#### Post date: [May 16, 2024, 8:07pm UTC](https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338/94 "2024-05-16T20:07:32Z")
I tried the fix. I deleted the existing device and added it back in also. I no longer get the “client not defined” issue. But when I run a test I get.
Card unavailable.
Info: This card is unavailable because the app or device that it belongs to might have been removed.
homey:device:0c9191a4-32a3-493b-9176-9182f98eb7e9
homey:device:0c9191a4-32a3-493b-9176-9182f98eb7e9:send\_serial\_command
I will be glad to send the WF2SL. No need to return it when your done. Keep it for troubleshooting.
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### Author:  [@pln](https://community.homey.app/u/pln)
#### Post date: [May 19, 2024, 9:15pm UTC](https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338/95 "2024-05-19T21:15:16Z")
Ok sorry to hear the fix didn’t work. Regarding your offer to send/sponsor a WF2SL, that would be super helpful making the app more robust! Currently, I can only test on WF2IR, so having a real WF2SL would be very appreciated! I’ll send you a DM with my details.
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### Author:  [@Karik\_Hoorn](https://community.homey.app/u/Karik_Hoorn)
#### Post date: [March 5, 2025, 9:45pm UTC](https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338/96 "2025-03-05T21:45:59Z")
Hello, im trying to connect my ATEN HDMI Matrix to Homey pro 2023 with a IP2SL (POE) module. it looks like it only sends one command and the connection is not closed after sending data once.
Is there a solution to fix this?
Best regards, Karik
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### Author:  [@Maxpower](https://community.homey.app/u/Maxpower)
#### Post date: [July 24, 2025, 12:40am UTC](https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338/97 "2025-07-24T00:40:32Z")
Feeling a little frustrated trying to get a globalcache IP2SL working from a Homey flow.
If members could kindly share _exactly_ what they have entered in the serial command configuration in the GC app, I would be most grateful. Image attached to clarify my request.
It is the syntax I am really interested in. The developers recommended escape codes do not work.
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### Author:  [@Maxpower](https://community.homey.app/u/Maxpower)
#### Post date: [September 9, 2025, 11:34pm UTC](https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338/98 "2025-09-09T23:34:21Z")
Anyone?
[Previous page](https://community.homey.app/t/app-pro-global-cache-connect-ir-serial-and-relay-to-almost-any-network/2338.md?page=4)