As it turns out, it's a good thing I didn't! I was completely wrong - the GPIOs are used differently between the plug and the plug US.

https://templates.blakadder.com/shelly_plug_US.html
and
https://templates.blakadder.com/shelly_plug.html

Shelly Plug US (shelly-plug-u1)

Shelly Plug (shelly-plug-2)

Looks like some GPIO wrangling needs to be done.

The reason why it doesn't flash is that the US plug has a different name then the (EU) plug2, shelly-plug-u1 vs shelly-plug2. During the update the name of the current and the new firmware is compared and the flash will be aboard if not match.

I think you mixed some things: There are 3 Shelly plugs out there

1. Shelly Plug
2. Shelly Plug 2
3. Shelly Plug US

The pinout you listed as "Shelly Plug (shelly-plug-2)" is that one of the "Shelly Plug", but the "Shelly Plug US" is more like the "Shelly Plug2".

I can give you a test build for the Plug US, but I have no test hardware at hand so I need to trust the Tasmota template, so it can happen that it brick your device.

@Numbski ok, try this one - http://rojer.me/files/shelly/shplgu1.zip
built from the commit above, i think it might work.
if it does, please report if power consumption figures look ok (a good way to test is pluggin a heater, or a a fan, or iron and comparing power consumption numbers).
also, let me know if system temperature in web ui looks reasonable (should be 45-60C or thereabouts).
also please test reverting back to stock.

@Numbski oh, sorry to hear that! don't worry, there's absolutely no rush with this.

@Numbski ok, try this one - http://rojer.me/files/shelly/shplgu1.zip
built from the commit above, i think it might work.
if it does, please report if power consumption figures look ok (a good way to test is pluggin a heater, or a a fan, or iron and comparing power consumption numbers).
also, let me know if system temperature in web ui looks reasonable (should be 45-60C or thereabouts).
also please test reverting back to stock.

I was able to try the OTA update with this build, but it doesn't take for me.

@Numbski any updates with your testing?

I'd be willing to test a new firmware on my plug if needed. It appears the previous iteration didn't work?

I tried compiling @rojer 's commit after rebasing master but the firmware doesn't apply for me either.

{"ts":1658371765.180, "level":2, "data":"mgos_ota_core.c:656     FW: shelly-plug-us1 esp8266 2.11.1 20220721-022206/2.11.1-3-g1f555d8-dirty sig 0x00\n"}
{"ts":1658371765.191, "level":2, "data":"shelly_update.cpp:242   Signature check: 00\n"}
{"ts":1658371765.198, "level":0, "data":"shelly_update.cpp:234   Wrong app name 'shelly-plug-us1'\n"}
{"ts":1658371765.206, "level":2, "data":"mgos_ota_core.c:1051    Update finished, result -13 (Aborted by event handler)\n"}```

Has the name changed for my plug?
{"name":null,"id":"shellyplugus-XXXXXXXX","mac":"XXXXXXXX","model":"SNPL-00116US","gen":2,"fw_id":"20220211-132652/plugusprod2_app-gcb4621f","ver":"plugusprod2","app":"PlugUS","auth_en":false,"auth_domain":null}

What is the state of Shelly Plug US support? yay or nay?

Attempted to install shelly-homekit today (after updating to latest stock firmware) and I get stuck with this message: "Trying to update from http://shelly.rojer.cloud/update."

Cheers and Thanks

I had a death in my family last year about the time a test build was made available, and I never got around to testing it. I have five of them here, so I really should get on that.

There is no support for "Shelly Plus Plug US"?

First off @Numbski, so sorry for your loss. Hope you and your family have been doing well.

I've tried to compile @rojer's commit linked above, but am getting some build errors. I can wade in and try to work around them myself, but maybe this is the wrong path entirely. Anyone have suggestions?

/Users/raphael/Downloads/shelly-homekit/src/shelly_main.cpp: In function 'void shelly::InitApp()':
/Users/raphael/Downloads/shelly-homekit/src/shelly_main.cpp:955:58: error: too few arguments to function 'void mgos_hap_add_rpc_service_cb(HAPAccessoryServerRef*, void (*)(HAPAccessoryServerRef*), void (*)(HAPAccessoryServerRef*))'
  955 |   mgos_hap_add_rpc_service_cb(&s_server, StartHAPServerCB);
      |                                                          ^
In file included from /Users/raphael/Downloads/shelly-homekit/src/shelly_main.cpp:24:
/Users/raphael/Downloads/shelly-homekit/deps/homekit-adk/include/mgos_hap.h:126:6: note: declared here
  126 | void mgos_hap_add_rpc_service_cb(
      |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~
make: *** [/Users/raphael/Downloads/shelly-homekit/build_ShellyPlugUS1/objs/shelly_main.cpp.o] Error 1

There is no support for "Shelly Plus Plug US"?

I too would like support for the Shelly Plus Plug US please. Then I can flash all my shelly stuff, hopefully, and stop using the Shelly Bridge via HOOBS. :)

here is a new build of @rojer commit, please test it, it it works the next release will support PlugUS.
PlugUS.zip
Edit: out dated files removed, for newer version see 4 comments later

here is a new build of @rojer commit, please test it, it it works the next release will support PlugUS.

Sir- I am unsure how to install the plugin from a ZIP file in HOOBS, if that is even possible. Can it be installed through the HOOBS interface? I would love to test it out.

curl -F [email protected] http://shelly.local/update, you must replace shelly.local with the hostname or ip of your Shelly

Hi @timoschilling, thanks so much for your work on this. I tried the above command with your new PlugUS.zip and got a -13 Aborted by event handler response. Is there something else I should try?

here is a new build http://rojer.me/files/shelly/misc/shelly-homekit-ShellyPlugUS.zip, now it can be flash like every other shelly too.
http://a.b.c.d/ota?url=http://rojer.me/files/shelly/misc/shelly-homekit-ShellyPlugUS.zip

Doesn't seem to be working for me, no specific error given. I'm on the Shelly 0.12 firmware, do you think that might be an issue?

@RaphiePS do you have a Plug US or a Plus Plug US? If you say you have version 0.12 it sounds like a Plus Plug US, the firmware from this PR is for the old Plus US without Plus. Support for the Plus version will follow in the future.

@timoschilling Here are the results of GET /shelly, I think this implies a non- Plus plug, but I could be wrong.

{
   "name": null,
   "id": "shellyplugus-c049ef892e60",
   "mac": "C049EF892E60",
   "model": "SNPL-00116US",
   "gen": 2,
   "fw_id": "20221206-140846/0.12.0-gafc2404",
   "ver": "0.12.0",
   "app": "PlugUS",
   "auth_en": false,
   "auth_domain": null
}

Note that it didn't come with v0.12 firmware, that was a relatively recent upgrade suggested by the Shelly Web GUI. Do you have a suggested firmware version I should downgrade to before attempting the HomeKit flash? (And if so, where I could find these older firmware files? http://archive.shelly-tools.de doesn't seem to have files for the US Plug).

@RaphiePS There three reasons why yours must be a Plus:

1. the output you posted shows gen: 2
2. The current version of non Plus US Plug is 1.x
3. The model of the gen 1 is SHPLG-U1

Take a look in the web Ui of your Shelly in the left top corner is a logo, I expect it contains a Plus.

@gedeyenite If you like to test it, you could simply do it by open this url in your browser http://a.b.c.d/ota?url=http://rojer.me/files/shelly/misc/shelly-homekit-ShellyPlugUS.zip (replace a.b.c.d with the ip of your shelly)

@Numbski @just-inlewis @evanpierre @ryanshuck was someone of you able to test that build? Reminder it's only for the "Plug US" not for the "Plus Plug US".

Hey @timoschilling sorry for the delay! I will keep an eye on this now to speed up your debug cycle!
{"ts":1676521342.232, "level":2, "data":"shelly_update.cpp:271 incoming fw signatures: 00\n"} {"ts":1676521342.239, "level":0, "data":"shelly_update.cpp:263 Wrong app name 'shelly-plug-u1'\n"} {"ts":1676521342.247, "level":2, "data":"mgos_ota_core.c:1051 Update finished, result -13 (Aborted by event handler)\n"}

@just-inlewis you have a Plus Plug US and not a Plug US, this build is only for the NON Plus version.

Still nobody that can test it? @Numbski?

@timoschilling It looks like only the Plug Plus US is available for purchase, both on the Shelly site and Amazon. If I could get my hands on the non-Plus I'd be happy to test it, but I'm having trouble finding one and I figure others are in the same boat.

@RaphiePS yes the Gen1 US Plug is out of stock.

@timoschilling I was able to get 2.11.2 installed on two of my Plug US (non-plus) devices. They are both now overheating consistently and the homekit server keeps stopping.

Installed version:

Version: 2.11.2
Build: 20230202-214551/2.11.2-21-gdd9215b-749-shelly-plug-us-support-dirty

Debug logs show:

38287858 shelly_main.cpp:360     == System temperature normal, resuming service
39285945 shelly_main.cpp:255     === Creating accessories
39294866 shelly_switch.cpp:244   Exporting 'Shelly Plug US': type 1, state: 0
39304051 shelly_main.cpp:351     == System temperature too high, stopping service
39308855 shelly_main.cpp:314     === Destroying accessories

The device works properly after reverting back to the stock firmware.

{
    "type":"SHPLG-U1",
    "mac":"<snip>",
    "auth":false,
    "fw":"20230913-113516/v1.14.0-gcb84623",
    "discoverable":true,
    "num_outputs":1,
    "num_meters":1
}

Are there any other logs I can provide that would be helpful?

Looks like temperature measuring didn't work. We need to make a build with disabling it.

Is there any update on firmware support for the Plus Plug US?

Is there any update on firmware support for the Plus Plug US?

humble bump.

I would also be very interested in seeing this plug supported.