// https://docs.arduino.cc/learn/built-in-libraries/software-serial/

#include <SoftwareSerial.h>

#define rxPin 10
#define txPin 11

int bytes_available;

// Set up a new SoftwareSerial object
SoftwareSerial mySerial =  SoftwareSerial(rxPin, txPin);

void setup()  {
    // Define pin modes for TX and RX
    pinMode(rxPin, INPUT);
    pinMode(txPin, OUTPUT);
    
    // Set the baud rate for the SoftwareSerial object
    mySerial.begin(115200);
    Serial.begin(115200);
}

void loop() {
  delay(10);
  bytes_available = mySerial.available();
  if (mySerial.available()) {
    char byte_rcvd = mySerial.read();
    char byte_string[3];
    sprintf(byte_string, "%02X", byte_rcvd);
    Serial.print("bytes available: ");
    Serial.print("\t");
    Serial.print(bytes_available);
    Serial.print("\t");
    Serial.print("current byte: ");
    Serial.print("\t");
    Serial.print(byte_string);
    Serial.println();
  }
}