ME310G1/ME910G1/ML865G1 AT Commands Reference Guide
80617ST10991A Rev. 11 Page 549 of 1039 2021-09-23
After entering the command, and if <lenwr> > 0, the module returns
the prompt ">" and waits for the data to send. To complete the
operation enter Ctrl-Z char (0x1A hex); to exit without writing the
message enter ESC char (0x1B hex).
Data must be written in hexadecimal form without 0x.
If data are successfully sent, the response is OK, otherwise an error
code is reported.
AT#I2CCF=?
Test command returns the range of available values for parameters
<sdaPin>, <sclPin>, <deviceId>, <lenwr>, <lenrd>.