Duvet

Winter duvet washed in 9kg machine. Largely dried in garage over night, then 2 days outside in the sun.

Woox smart plug

This was bought as a Woox 5402 from Amazon. It had Tuyau firmware, seen at boot on the serial port. There are a few sites that enable you to reprogram these without opening.
The stock FW needs an app and you need to register with Woox. A few people reckon they phone home.
It's nicely made.
I didn't want a system that can't operate when the internet is down, or even to register to use it, so I've blown in some simple MQTT FW.

15/2/25 gone over to ESPHome

Very similar to this. Pinout is good

https://sylvainzimmer.com/blog/2021/09/smart-plugs-tasmota/

Ground GP0 and apply power

YAML mainly from https://devices.esphome.io/devices/Zentec-Smart-Plug

led 2, button 13, relay 15