Best posts made by meirmark

Problem solved.
To change the I2C address of a Kmeter one need to write to register 0x08 the new address (one byte) and to register 0x09 the same address but with the bits converted (1 is 0 , 0 is 1).
After writing cycle the power.
Thanks to M5 technical help team.

Hello.
I am trying to use a M5core with LAN module to make a modbus TCP slave.
I tried a few Arduino samples but nothing works.
Can somebody help ?

Thanks