that is just a basic schematic on st7540. the one I ask is embedded with something else, like the microcontroller. and that document DO NOT cover that part. I already search the ST site, but i didn't find that module. THAT'S WHY I ASK HERE IF THERE IS SOMEONE WHO HAS USED THAT BEFORE. Thank you.
anyone has ever used this? can we discuss it?
https://www.aliexpress.com/item/Power-line-carrier-module-communication-module-st7540-development-board-DC-power-cut-three-phase-can-be/32820677959.html
and, if i didn't get the program from the supplier where i bought it, where can i download the...