//-------------------------------------------------------------------------------------------------------------------
//
// ATtiny85 SoftwareSerial test program
//    2020.5.28
//  Softserial04.ino
//
//   Terminal Soft Setting
//      Enter code  RX : CR+LF
//                  TX : CR
//

#include <SoftwareSerial.h>

int led = 1; // PB1(Pin6)

SoftwareSerial mySerial(3, 4); // RX(PB3:Pin2), TX(PB4:Pin3)
void setup() {                
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT); 
  mySerial.begin(9600); 
  delay(500);
  mySerial.println("Serial connect");

}

// the loop routine runs over and over again forever:
void loop() {
  if (mySerial.available()) {
      while(mySerial.available()){
        char RXdata = mySerial.read();
        mySerial.write(RXdata);
      }    
    digitalWrite(led, HIGH); //下記４行はなくてもいい
    delay(100);
     digitalWrite(led, LOW);
    delay(50);
  }
}

//---------------