处于睡眠模式的XBee终端设备与Arduino板上的协调器通信

我想要的：将处于睡眠模式的独立终端设备XBee连接到连接到sparkfun红板（Arduino Uno）的XBee协调器 . 对于这个例子，我在浪漫照明上使用Faludis无线传感器网络示例，但路由器/终端设备处于睡眠模式

当不处于睡眠模式时，我有一个光传感器连接到我的终端设备，并通过引脚20发送到协调器无线电 . 我将协调器引脚2和3分别连接到arduino板引脚0和1 . 我的协调员arduino的代码来自这本书，

/*
* ROMANTIC LIGHTING SENSOR
*
* It detects whether your lighting is
* setting the right mood.
*
* USES PREVIOUSLY PAIRED XBEE ZB RADIOS
* by Rob Faludi http://faludi.com
*/

/*
    CONFIGURATION
    SENDER: (REMOTE SENSOR RADIO)
    ATID3456 (PAN ID)
    ATDH -> set to SH of partner radio
    ATDL -> set to SL of partner radio
    ATJV1 -> rejoin with coordinator on startup
    ATD02 pin 0 in analog in mode
    ATIR64 sample rate 100 millisecs (hex 64)
    * THE LOCAL RADIO _MUST_ BE IN API MODE *
    RECEIVER: (LOCAL RADIO)
    ATID3456 (PAN ID)
    ATDH -> set to SH of partner radio
    ATDL -> set to SL of partner radio
*/

#define VERSION "1.02"

int LED = 11;
int debugLED = 13;
int analogValue = 0;

void setup() {
    pinMode(LED, OUTPUT);
    pinMode(debugLED, OUTPUT);
    Serial.begin(9600);
}
void loop() {

    // Make sure everything we need is in the buffer
    if (Serial.available() >= 21) {

        // Look for the start byte
        if (Serial.read() == 0x7E) {

            //Blink debug LED to indicate when data is received
            digitalWrite(debugLED, HIGH);
            delay(10);
            digitalWrite(debugLED, LOW);

            // Read the variables that we're not using out of the buffer
            for (int i = 0; i<18; i++) {
                byte discard = Serial.read();
            }
            int analogHigh = Serial.read();
            int analogLow = Serial.read();
            analogValue = analogLow + (analogHigh * 256);
        }
    }

    /*
    * The values in this section will probably
    * need to be adjusted according to your
    * photoresistor, ambient lighting, and tastes.
    * For example, if you find that the darkness
    * threshold is too dim, change the 350 value
    * to a larger number.
    */

    // Darkness is too creepy for romance
    if (analogValue > 0 && analogValue <= 350) {
        digitalWrite(LED, LOW);
    }

    // Medium light is the perfect mood for romance
    if (analogValue > 350 && analogValue <= 750) {
        digitalWrite(LED, HIGH);
    }

    // Bright light kills the romantic mood
    if (analogValue > 750 && analogValue <= 1023) {
        digitalWrite(LED, LOW);
    }

    //Serial.println(analogLow);
    //Serial.println(analogHigh);
    Serial.println(analogValue);
    //delay(100);
}

现在，当我将路由器上的设置更改为终端设备时，和

ATIR 3E8

ATSM 4

ATSP 64

ATST 14

我看到终端设备每秒都开机（从LED我已经连接到引脚13 15和6），但协调器端没有任何东西 . 有没有我在协调器上做错了，或者Arduino上的串行读取是不是像循环睡眠模式？