Bosch C1200 Low Quality Receiving

[Raybom]

Problem Description:
I have custom hardware build. Connected to EMS Bus but Rx reading are very low quality and very slow. Also there is no Tx readings.

Expected Result:
%100 Quality

Current Result:
%12 Quality

ESP32:
ESP32-DevKitM-1
https://docs.espressif.com/projects/esp-idf/en/latest/esp32/hw-reference/esp32/user-guide-devkitm-1.html

emsesp_info.txt

log.txt

[MichaelDvP]

Please add some information about the custom hardware.

[Raybom]

This one with ESP32. Also i checked signal input and output. Compared and it is working fine.

[bbqkees]

Do not power anything from the bus. The EMS bus is too weak to power an ESP32 board. This will cause RX to drop.
Just remove the voltage regulator and connect a USB power supply to the ESP board.

[Raybom]

Thanks for the reply. I connect ESP32 from external supply and it worked.