YOMOGI YO-WIFI-C02 Smart Curtain with RF remote - Working progress

Hi guys, i disassembled a smart curtain switch mod. YO-WIFI-C02 branded YOMOGI



inside




inside i have found a W701 mcu, searching info online i understand that is a RTL8720 clone (or compatible)








than there is a custom rf receiver for remote(i suppose on 2.4Ghz band due to the 16Mhz quartz)





and relative remote



with the same custom IC





for programming i use the classic tools and gear : usb to ttl adapter with 3.3v supply and amebaZII PGTool 1.2.47, with OpenRTL87X0C_1.18.155.bin

connected in this way :

W701 Module         USB-TTL Module
VCC                                3.3v
GND                               GND
A15       TX
A16                                 RX
A0                                   3.3v           (for bootloader mode)
RXD                                3.3v           (for bootloader mode)

all flashing procedure completed correctly and i can proceed with configuration



PIN A07           -             Button 2  Open
PIN A11           -             LED
PIN A12           -             Button Close
PIN A14           -             Data from remote receiver
PIN A18           -             Relays 1  Close
PIN A19           -             Relays 2 Open

here my autoexec script


at this point i have a smart curtain module basically working, but without remote function.... i enable the driver tuyaMCU and i see that the custom mcu use a protocol different from the classic tuyaMCU, it use only 3 byte at all and the 2 header byte are 55 A5 insteath classic 55 AA so the tuyaMCU driver can't work... i collect the codes of all remote's function and they are




now i'm stuck, i don't find any function to use with the script for manage this code, i don't find a function that permit to read the bytes read by a gpio...
any suggestion?

thank you very mutch
Alex

interesting. not seen an AmebaZ2 on that format module before.

Did you capture boot log from TX?

>>21638242

Hi, divadiow, I'm sorry not... I have done the dump but the utility didn't recognize any Tuya info about pin and functions...
Bye
Alex

boot log from your backup: