2-1 G5T 基本測試

全部接腳定義：

 

我們只用到這三條線：

 

先用杜邦線公→公來連接到uno

 

#include <SoftwareSerial.h>

SoftwareSerial mySerial(2, 3); // RX, TX

void setup() {
  // Open serial communications and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }


  Serial.println("Goodnight moon!");

  // set the data rate for the SoftwareSerial port
  mySerial.begin(9600);
  mySerial.println("Hello, world?");
}

void loop() { // run over and over
  if (mySerial.available()) {
    Serial.println(mySerial.read());
  }
  if (Serial.available()) {
    mySerial.println(Serial.read());
  }
}