[wiki:wade/embedded/arduino 回到 Arduino]
{{{
#!c

/*
 * Server 廣播發出訊號，[node][val]
 * B1 ： 當 B node 收到後，會閃 LED 燈 1 次並回傳 1
 * B2 ： 當 B node 收到後，會閃 LED 燈 2 次並回傳 2
 * C1 ： 當 C node 收到後，會閃 LED 燈 1 次並回傳 1
 */
#include <NewSoftSerial.h> 
#define node_A_sh 13A200
#define node_A_sl 403D0190
#define node_B_sl 403D018A
#define node_C_sl 403D01D0

// set pin 9 as RX 
uint8_t ssRX = 9;
// set pin 10 as TX
uint8_t ssTX = 10;
// enable soft serial nss
NewSoftSerial nss(ssRX, ssTX);

int data;
int nodeACount=1;
int nodeBCount=1;

void setup()
{
  Serial.begin(9600);
  // start soft serial
  nss.begin(9600);
  nss.print("A");
  nss.print(byte(nodeACount));
  nss.print("B");
  nss.print(byte(nodeBCount));
}


void loop()
{
  if(nss.available())
  {
    data = nss.read();
    switch(data)
    {
      case 'A':
        nodeACount++;
        nodeACount %= 6;
        Serial.print("nodeACount = ");
        Serial.println(nodeACount);
        nss.print("A");
        nss.print(byte(nodeACount));
        break;
      case 'B':
        nodeBCount++;
        nodeBCount %= 6;
        Serial.print("nodeBCount = ");
        Serial.println(nodeBCount);
        nss.print("B");
        nss.print(byte(nodeBCount));
        break;
    }
  }
}

}}}