Smart Standing Fan 2

Based on the information presented here: https://github.com/dhewg/esphome-miot/issues/57

Things to make sure: provide enough power from the UART, in some cases mine was like only ~1.5V when i plugged in directly to the main board. There must be some weird thing which i am not an expert, but i believe the USB/UART simply cant produce enough voltage if it needs to power on the whole board itself.

2 out of the 3 i was still able to flash the device, but the 3rd one acted incredibly weird. If you have the same issue i suggest to directly connect the probes to the ESP module:

TX (ESP)->RX (UART) Brown wire

RX (ESP)->TX (UART) White wire

3.3V->3.3V (RED wire)

GND->GND(Black wire)

IO0-> Yellow wire - before plugging in the UART to your PC make sure this is connected to GND! (some says 3.3V even the freaking pinout diagram says the same for Flash boot mode but you should connect it to GND!!!) For this i suggest to use the UART ground pin, as when i tried to use the GND from the motherboard it didn't worked for me.

If you hear one beep that is NOT good as the board booted up. You should hear very short, quiet "chirping" from the speaker. Then install ESPhome, i used this firmware: https://github.com/dhewg/esphome-miot/blob/main/config/dmaker.fan.p18.yaml