Tuya controller with 4 relays and WB3S modules - Copy functions via USB programmer

Hi.
I have a Tuya controller with 4 relays and WB3S modules.
Wanting to save gold I want to copy the functions.
Preferably using a USB programmer.
Unfortunately I have not been able to find the batch file on the net so the option of copying remains.

I don't want any other software solutions, replacements etc. I want 100% the same thing.

.

Many thanks for your help - pointing out the program - pinology is available on the Forum.

#Grzesiek

Wrong section.
What do you mean by "copy the functions"? I honestly don't know what you are trying to do.

You will program the WB3S via a USB to UART converter and the BKwriter 1.60 program, according to the instructions I posted in this section. You can both read the original firmware this way and upload new firmware.
For example, as here:
https://www.elektroda.pl/rtvforum/topic3875654.html
Here you have the leads of the WB3S:
.
You can upload my OpenBK7231 to it, but then you no longer pair it with the manufacturer's app (Tuya), only with e.g. Home Assistant.

Unless you want to copy the batch from one WB3S to another.... this is as possible as long as the pinout configuration matches. You can do this with bkWriter 1.60.

By the way, I see that you used ULN2003A on it instead of transistors to control the relays. Where did you buy it and for how much?