#include <SoftwareSerial.h>
#define rxpin 0
#define txpin 1
SoftwareSerial myserial(rxpin, txpin);
Why are you doing software serial on the hardware serial pins? You can't do both.
#include <SoftwareSerial.h>
#define rxpin 0
#define txpin 1
SoftwareSerial myserial(rxpin, txpin);
Why are you doing software serial on the hardware serial pins? You can't do both.