Sonoff S20 not working with board = esp01_1m

[luisAzcuaga]

Found that works with

board = esp8285

Couldn't find why tho.

[danimtb]

Hi @luisAzcuaga!

Thank you for you feedback. It seems that new sonoff s20 could have the esp8285 instead of the esp8266.

Could you confirm this? You have to check the inside of your s20 and see if the esp8285 is there: https://uploads.disquscdn.com/images/698f28c20f5ebcd22bf839ee7cb5db6457ca31a3f5c6b1f0bbb74823792a2811.jpg

In that case we would have to add a new "device" to the repo with the esp8285.

There is a similar issue in the tasmota repo arendst/Sonoff-Tasmota#889

Please check it and let me know! 😄

[luisAzcuaga]

I haven't find a way to tear it down without breaking the device. Heh. Actually I based on the Tasmota issue to try flashing as ESP8285 because flashing as ESP01_1m wouldn't do a thing on the device.

[danimtb]

but you have to open it up in order to flash it. Can't you see the microncontroller then or would you have to tear it down completely?

[luisAzcuaga]

Good news! Found out that devices with the ESP01_1m are compatibles with the firmware for ESP8285 (not sure if ESP01_1m is a variation of ESP9266 as ESP8266-12F/12S/etc)

[luisAzcuaga]

I think the ESP is underneath the PCB :/

[danimtb]

Yes, the firmware is compatible dont worry. It even supports sonoff touch which uses esp8285 too.

Thanks a lot for the picture. Seems chip is on the other side of the pcb. However, it looks like it has the esp8266 because the layout is different. So we would need to give it a good name to make it identifiable by other users.

Option 1: sonoff-s20-us ? I dont know if it is related to the contry version. Option 2: sonoff-s20-esp8385 ? Dont know if this makes it identifiable. Option 3: ... any suggestion?

Could you provide me with the link where you bought this model? Many thanks @luisAzcuaga!

[luisAzcuaga]

Sorry for the late response, but by the time I saw your answer I was leaving the lab. Anyway, I'll make more tests tomorrow morning 10 am (GMT-6). About the name, I would call it sonoff-s20-alt because I'm not sure it's a permanent change, maybe it was only this batch(?)

And the store usally is iTead, but this time was from banggood

And thank you for the fast responses!

[danimtb]

Hi @luisAzcuaga

Did you have the time to do the checks? I'd like to include support for this device in the new release.

Thanks

[luisAzcuaga]

Yes, and found some other issues with my code and had to make some changes in order to keep the code working. In your library is webServer.

Had to add this everytime a GET or POST is called.

void setHeaders()
{
  self->server->sendHeader("Access-Control-Max-Age", "10000");
  self->server->sendHeader("Access-Control-Allow-Methods", "POST,GET,OPTIONS");
  self->server->sendHeader("Access-Control-Allow-Origin", "*");
  self->server->sendHeader("Access-Control-Allow-Headers","Origin, X-Requested-With, Accept, Content-Type, X-Amz-Date, Authorization, X-Api-Key, X-Amz-Security-Token, X-XSRF-TOKEN, Access-Control-Allow-Headers");
}

handleAccessHeader is a function that calls the function above.

server->on("/", HTTP_OPTIONS, handleAccessHeader);
  server->on("/", HTTP_GET, handleRoot);

  server->on("/scan", HTTP_OPTIONS, handleAccessHeader);
  server->on("/scan", HTTP_GET, handleScan);

  server->on("/configure", HTTP_OPTIONS, handleAccessHeader);
  server->on("/configure", HTTP_GET, handleConfigureGet);
  server->on("/configure", HTTP_POST, handleConfigurePost);

Guess It has something to do with the webKit, not the newest version of the ESP8266 library.

[danimtb]

I dont know why this is needed... could you explain which versions are you using? Is yours an old chip or something?

Is this related to the change on board = esp8285?

[luisAzcuaga]

I think this last thing I posted you it's related to ES6. The Sonoff plug we were using were v1.1 and we bought them about a year ago, this ones are version 1.3.

• The hardware version jump changed the ESP on the Sonoff we have (1.1-1.3)
• ES5-ES6 jump I understand it means it now need the Headers.
  • or maybe it was the ESP8266 library update because the last compilation we made was on january 9th this year and we were still using the Sonoff 1.1 and we had no problem. But If I recompile the "old" firmware from january 9th using the most updated ESP library, this would not work correctly on the Sonoff due to the headers missing.

Sorry for the late response but I got moved to another project.