e32ttl.available() always returns false

[adiiot-1316]

Hi @xreef @satyanvesi @pyjsql ,

Thanks for such wonderful library. I am using esp32-c6 and trying to connect with E32-900t30d-v8.

E32-900t30d-v8.	ESP32-C6
M0	10
M1	11
AUX	-1
RX	16
TX	17
VCC	5v
Gnd	GND

In Loop function, e32.available()always returning false. Below is the code being used. Any help would be appreciated.

`#include "Arduino.h"
#include "LoRa_E32.h"

LoRa_E32 e32ttl(&Serial1, -1, 10, 11); //  RX AUX M0 M1
void setup() {
  Serial.begin(9600);
  Serial1.begin(9600);
  delay(4500);
 // Startup all pins and UART
  e32ttl.begin();

  // Send message
  ResponseStatus rs = e32ttl.sendMessage("Hello, world?");
  // Check If there is some problem of succesfully send
  Serial.println(rs.getResponseDescription());
}

void loop() {
    // If something available
  if (e32ttl.available()>1) {
    Serial.println("e32ttl is available ");
      // read the String message
    ResponseContainer rc = e32ttl.receiveMessage();

    // Is something goes wrong print error
    if (rc.status.code!=1){
        Serial.println(rc.status.getResponseDescription());
    }else{
        // Print the data received
        Serial.println(rc.status.getResponseDescription());
        Serial.println(rc.data);
    }
  }
  if (Serial.available()) {
      Serial.println("In Serial send");
      String input = Serial.readString();
      e32ttl.sendMessage(input);
  }
  delay(3000);
}`

[satyanvesi]

are you connected pull up resistors with tx and rx pin? what does the -1 meaning in this line LoRa_E32 e32ttl(&Serial1, -1, 10, 11)?

[adiiot-1316]

@satyanvesi : Thanks for reaching out.

I am just directly connecting the e32 pins with esp32. Not using pull up resistors. Can you please how to achieve that? -1 means not using aux signal.

[satyanvesi]

you should go with https://mischianti.org/lora-e32-device-for-arduino-esp32-or-esp8266-library-part-2/ this guide and follow the esp32 schematic for connecting the resistors.

[adiiot-1316]

@satyanvesi : Its still not working even after adding pull up. Only thing is e32ttl.available() is not returning >1 .