How to transmit a string with ONE hc-12 radio module?

Question

Arduino

There is an installation with one hc-12 radio module and the following task:
1. Reception is carried out without stops and pauses and verification of information arriving at the port (Serial1) through the radio module.
2. To each correct line of received information, a serial number is added starting from “1”, and a space. The generated string is issued to the port (Serial).
3.Each incorrect line is counted as an error, numbered and output to the port (Serial) with the message “{error number} Error / {received text}”
4.All transmissions go line by line and end with the end of the line (\n)
Correct phrases
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I understand that there is Google, I searched there, but there is no such information there.

Answer 1

And what is the actual question?
Through Rx we receive, process, through Tx we transmit. all with one port and one module.
Well, if you really need to, then you can organize software uart.

Answer 2

I understand that there is Google, I searched there, but there is no such information there.

strange, but in my google there is