ESP32 + RS232 TTL serial communication

[ixybus]

Hello!
I'm currently trying to communicate my ESP32 DevKitV1 through serial. I bought a TTL-RS232 like this one:
https://es.aliexpress.com/store/product ... st=ae803_4
So I wired it to the ESP32 like this:

Couldn't find a suitable image to make the squematic wiring so I picked this converter, I'm not using this one, but the one I provided on the url

squematic.png (360.03 KiB) Viewed 9299 times

This is my code:

Code: [Select all] [Expand/Collapse]

1. #define RXD2 16
2. #define TXD2 17
3.  
4. void setup() {
5.   // Note the format for setting a serial port is as follows: Serial2.begin(baud-rate, protocol, RX pin, TX pin);
6.   Serial.begin(115200);
7.   //Serial1.begin(9600, SERIAL_8N1, RXD2, TXD2);
8.   Serial2.begin(115200, SERIAL_8N1, RXD2, TXD2);
9.   Serial2.println("serial2test");
10.   Serial.println("Serial Txd is on pin: " + String(TX));
11.   Serial.println("Serial Rxd is on pin: " + String(RX));
12.  
13. }
14.  
15. void loop() {
16.   Serial2.print("hello");
17.   Serial2.write("hellowrite");
18.   Serial.print(char(Serial2.read()));
19.   delay(1000);
20. }

GeSHi © Codebox Plus Extension

I'm using HardwareSerial since I've seen everyone saying it's better that SoftwareSerial, and what I want to do is to read from the Serial2 (connected to the RS232) and print it on Serial (ESP32). With this code I can print on both serials just fine (sort of) but I can't seem to be able to read from Serial2:

terminal2.png (55.2 KiB) Viewed 9299 times

The final goal is to be able to type something on Serial2 so it's sent to the ESP32, and read it correctly.
Am I missing something? Should I not be crossing the TX/RX pins?