could this work on ESP8266?

[vrabi-cv]

Hello, since I have got some Wemos D1 mini ESP8266 chips, I would like to try communication on this chip. I tried to upload the yaml but I got error on this lines:
     lambda: |-
       uint16_t value = modbus_controller::word_from_hex_str(x, 0);
Is it due to different chip, or there has to be more changes made inside the program code?

Thanks Martin