A minimal firmware for OTA (over the air) flashing various target firmwares starting from Mongoose OS.
Original repository at https://github.com/yaourdt/mgos-to-tasmota. This repository is tailored to use Tasmota Latest Release Version only.
Mg2x is an intermediate firmware that can be used to install Tasmota on various Shelly models. It will install the latest released version, and you can continue from there to your favourite target release.
Warning: This application should generally be safe to use for all supported devices. Still, overwriting a device's boot loader via OTA update is a risky operation. If something unexpected fails, your device may be bricked, unless you know how to flash a new firmware over a wired connection.
Warning: You can go back to Mongoose OS via OTA as well, using this firmware, but be aware the application is still at an early stage. If something fails, your device may be bricked, if you don't know how to flash a new firmware over a wired connection.
Before flashing this firmware, connect your device to a WIFI network with
internet access. From your browser, open the update URL for your device from the
table below. Replace shellyip with the IP address of your Shelly. The device
will restart one or two times and attempt to download Tasmota. If this download
succeeds, the device will restart again, and you will see a new WIFI network
labeled tasmota-????. This process should take no longer than 4 - 5 minutes,
depending on your network connection.
There is a video tutorial on how to flash this firmware. Thank you, digiblur!
If the download fails, or your internet connection is disrupted, simply turn the device off and on again, the intermediate firmware will retry until it succeeds.
In the unlikely event that the WIFI credentials are wrong, the device will try to connect to a backup WIFI with SSID mgos-recover and password RJoPuKC3u5, which you can use for recovery.
| Device | Update URL | Tasmota Template |
|---|---|---|
| Shelly 1 | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-Shelly1.zip |
{"NAME":"Shelly 1","GPIO":[0,0,0,0,21,82,0,0,0,0,0,0,0],"FLAG":0,"BASE":46} |
| Shelly 1PM | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-Shelly1PM.zip |
{"NAME":"Shelly 1PM","GPIO":[56,0,0,0,82,134,0,0,0,0,0,21,0],"FLAG":2,"BASE":18} |
| Shelly 1L | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-Shelly1L.zip |
{"NAME":"Shelly 1L","GPIO":[320,0,0,0,192,224,0,0,0,0,193,0,0,4736],"FLAG":0,"BASE":18} |
| Shelly Plug S | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-ShellyPlugS.zip |
{"NAME":"Shelly Plug S","GPIO":[57,255,56,255,0,134,0,0,131,17,132,21,0],"FLAG":2,"BASE":45} |
| Shelly 2 | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-Shelly2.zip |
{"NAME":"Shelly 2","GPIO":[0,135,0,136,21,22,0,0,9,0,10,137,0],"FLAG":0,"BASE":47} |
| Shelly 2.5 | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-Shelly25.zip |
{"NAME":"Shelly 2.5","GPIO":[56,0,17,0,21,83,0,0,6,82,5,22,156],"FLAG":2,"BASE":18} |
| Shelly RGBW2 | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-ShellyRGBW2.zip |
{"NAME":"Shelly RGBW2","GPIO":[0,0,52,0,40,255,0,0,37,17,39,38,0],"FLAG":0,"BASE":18} |
| Shelly Dimmer 1 | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-ShellyDimmer1.zip |
{"NAME":"Shelly Dimmer 1","GPIO":[0,3200,0,3232,5568,5600,0,0,192,0,193,288,0,4736],"FLAG":0,"BASE":18} |
| Shelly Dimmer 2 | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-ShellyDimmer2.zip |
{"NAME":"Shelly Dimmer 2","GPIO":[0,3200,0,3232,5568,5600,0,0,193,0,192,0,320,4736],"FLAG":0,"BASE":18} |
| Shelly EM | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-ShellyEM.zip |
{"NAME":"Shelly EM","GPIO":[0,0,0,0,0,0,0,0,6,156,5,21,0],"FLAG":15,"BASE":18} |
| Shelly Bulb | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-ShellyBulb.zip |
not yet available, only flash if you a perfectly certain about what you are doing |
| Shelly Vintage | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-ShellyVintage.zip |
not yet available, only flash if you a perfectly certain about what you are doing |
| Shelly Plug US | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-ShellyPlugUS.zip |
{"NAME":"ShellyPlugUS","GPIO":[52,255,57,255,21,134,0,0,131,17,132,157,0],"FLAG":0,"BASE":45} |
| Shelly Duo | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-ShellyBulbDuo.zip |
{"NAME":"Shelly Duo","GPIO":[0,0,0,0,38,37,0,0,0,0,0,0,0],"FLAG":0,"BASE":18} |
| Shelly H&T | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-ShellyHT.zip |
not yet available, only flash if you a perfectly certain about what you are doing |
| Shelly i3 | http://shellyip/ota?url=http://ota.tasmota.com/tasmota/shelly/mg2tasmota-ShellyI3.zip |
{"NAME":"Shelly i3","GPIO":[0,0,0,0,0,0,0,0,83,84,82,0,0],"FLAG":2,"BASE":18} |
For your convenience, the table above also lists the matching Tasmota device templates from templates.blakadder.com which you can use to configure Tasmota after installation.
You can compile a binary version of this firmware using mos tools. Once installed, clone this repository and run
mos build --build-var MODEL=Shelly1 --build-var TARGETFW=tasmota --platform esp8266
to create a binary for e.g. a Shelly1 switch located in build/fw.zip.
Thanks to rojer for helping me with the debugging of the initial code.
This firmware is build using a fork of Mongoose OS docker action which can be found here.