it can be seen that there are some transmission errors somewhere in the data transfer. I wonder if the AVR can keep up with the serial data from the WT-11 when it is writing to the EEProm.
If I am right, I started using the eeprom to get all the info from the WT-11 returned. I'll load my program again to see how it works for me. And I'll try you program.
I copied the escape sequence from another program, I probably made it different for a special, and now forgotten, reason.