Just a quick - and unfortunately rather frustrated - update:
I received 2 S31s earlier today and have since tried to make them work.
After a lot of trial & error I finally managed to flash one of them with the Tasmota firmware:
Simplest way to flash ESP8266 and Sonoff | No command line here!
Took me a while to figure out that you need to hold the on/off button while plugging in the USB connection - which is also not easy to do when you only have two hands,
What I’m still struggling with, though, is to get the S31 connected to the built-in HA MQTT server - all my other MQTT challenges were, while not without the occasional hiccup, much easier to figure out.
Here I’m now stuck with the error message in the console:
MQT: Connect failed to 192.168.7.14:1883, rc -4. Retry in 10 sec
and I cannot figure out how to fix it - I have no idea why my config would result in a MQTT_CONNECTION_TIMEOUT
.
I don’t use any credentials on my mqtt server and I am concerned it might have to do with that.