WebClient 和 MotionDetector 会在一段时间后停止

我已经挖掘了大约一个星期，没有任何办法解决这个问题。我的Arduino代码工作了一段时间(几次/几天)，然后突然停止。我正在尝试在Arduino中实现一个WebClient，当检测到运动/运动停止时，每次(定期 - 每90秒)都会将HTTP GET请求发送到其他服务器。

您可以在下面找到代码。谁能帮忙？

#include <Ethernet2.h>
#include <SPI.h>
byte mac[] = { 0x90, 0xA2, 0xDA, 0x10, 0x73, 0x88 };
IPAddress ip(192,168,20,84);
IPAddress server(192,168,50,93); // Google
IPAddress myDns(8, 8, 8, 8);
EthernetClient client;
//getMovement - sends a GET request when motion is detected
void getMovement() {
client.stop();
if (client.connect(server, 8080)) {
client.println("GET /GetARoomMaven/motion?roomId=1&movement=1");
client.println();
Serial.println("Movement Request Sent");
} else {
Serial.println("connection failed");
}
}
//getNoMovement - sends a GET request when motion had stopped
void getNoMovement() {
client.stop();
if (client.connect(server, 8080)) {
client.println("GET /GetARoomMaven/motion?roomId=1&movement=0");
client.println();
Serial.println("Movement Request Sent");
} else {
Serial.println("connection failed");
}
}
//VARS
//the time we give the sensor to calibrate (10-60 secs according to the datasheet)
int calibrationTime = 10;        
//the time when the sensor outputs a low impulse
long unsigned int lowIn;         

//the amount of milliseconds the sensor has to be low 
//before we assume all motion has stopped
long unsigned int pause = 90000;  
//
boolean lockLow = true;
boolean takeLowTime;  
int pirPin = 2;    //the digital pin connected to the PIR sensor's output
int ledPin = 13;

/////////////////////////////
//SETUP
void setup(){
Serial.begin(9600);
pinMode(pirPin, INPUT);
pinMode(ledPin, OUTPUT);
digitalWrite(pirPin, LOW);
Ethernet.begin(mac);
//give the sensor some time to calibrate
Serial.print("calibrating sensor ");
for(int i = 0; i < calibrationTime; i++){
Serial.print(".");
delay(1000);
}
Serial.println(" done");
Serial.println("SENSOR ACTIVE");
delay(50);
loop();
}
////////////////////////////
//LOOP
void loop(){
if(digitalRead(pirPin) == HIGH){
digitalWrite(ledPin, HIGH);   //the led visualizes the sensors output pin state
if(lockLow){  
//makes sure we wait for a transition to LOW before any further output is made:
lockLow = false;     
Serial.print("motion detected at ");
Serial.print(millis()/1000);
Serial.println(" sec"); 
getMovement();
}         
takeLowTime = true;
}
if(digitalRead(pirPin) == LOW){       
digitalWrite(ledPin, LOW);  //the led visualizes the sensors output pin state
if(takeLowTime){
lowIn = millis();          //save the time of the transition from high to LOW
takeLowTime = false;       //make sure this is only done at the start of a LOW phase
}
//if the sensor is low for more than the given pause, 
//we assume that no more motion is going to happen
if(!lockLow && millis() - lowIn > pause){  
//makes sure this block of code is only executed again after 
//a new motion sequence has been detected
lockLow = true; 
Serial.print("motion ended at ");      //output
Serial.print((millis() - pause)/1000);
Serial.println(" sec");
getNoMovement();
}
}
}