Read serial data from UART1 to parsing data after

[kobayeshi]

Dear all

First of all, I don't know where ask my doubt, sorry for any inconvenience.

I have a project in Arduino IDE which works like a charm, but I need use BTstack for send data over bluetooth to a Bluetooth 2.0 device. For me, ESP-IDF programming is new and I don't have much idea how to translate my code from Arduino IDE to c++.

By now, I can send text over bluetooth and read data from serial port UART1 and print in idf.py monitor.

But the other thing I have to do is as follows.

1 - I receive a lot of data from UART1 like

@U0----------------------------------------
WEIGHING TICKET

e: 1 kg TIME:13:22 DATE:09.12.2020
----------------------------------------
GRP:02 G kg PT kg NET kg

WEIGHT: 1084 0 1084
----------------------------------------

For every line is finished by '\n'

In arduino IDE I read every character (CHAR), then stored in string until character CHAR = '\n'
if CHAR = '\n' then i compare which line is read.

If line = 7 then copy this last line read into a new variable and make a substring

This is the code I use

[Codebox]
char recibido = serial.read();
datosin += recibido;
if (recibido == '\n') {
if (linea == 7) {
templinea = datosin;
parsedlinea = templinea.substring (36,40);
peso = parsedlinea
peso.trim();
}
else {
linea++;
datosin="";
if (linea==9) {
datosin ="";
parsedlinea="";
peso = "";
linea = 0;
}
}
}
[/Codebox]

How could do this process with ESP-IDF language?

Thanks in advanced.