Arduino MEGA, LCD和SSR在24小时后冻结

Question

我要告诉你我使用arduino的问题。

我正在制作一个访问rfdi系统来启用水泵，过程如下:我将rfid密匙环靠近阅读器，我对服务器进行sql查询，如果它返回数据，我启用水泵，然后注册用户被提供水。

一切工作正常18-24小时，之后屏幕冻结，arduino不以任何方式响应或运行程序。要让它再次工作，我必须重新启动它。也许我以为是记忆问题，但我不知道。在构建中，我有草图(18%)和内存(22%)。

我不知道问题出在哪里。

#include <U8glib.h>
#include <SPI.h>
#include <EthernetENC.h>
#include <Wiegand.h> //PROTOCOLO P/ RFDI
#include <ArduinoJson.h>
U8GLIB_ST7920_128X64_1X u8g(6, 5, 4 ,7); //LCD  Enable, RW, RS, RESET  
#define FALSE 0      
#define TRUE  1 
long int rawToken;
char c;
char pageAdd[64];
char user[64];
int totalCount = 0;
String ID = "";
String readString = ""; 
String clientegraba = "";
String terrenograba = "";
bool inicio = true;
bool errorbit = false;
byte mac[] = {  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
// CONFIG IP ARDUINO
IPAddress ip(192,168,0,210);
IPAddress gateway(192, 168, 0, 1);
IPAddress subnet(255, 255, 255, 0);
// IP Y PUERTO SERVIDOR
IPAddress server(192,168,0,104); 
char serverName[] = "192.168.0.104";
int serverPort = 80;

EthernetClient client;
WIEGAND wg;

void setup() {

Serial.begin(9600);

pinMode(34,OUTPUT); //OUT PUMP
digitalWrite(34,LOW);

welcome(); //PANTALLA BIENVENIDA

//GATE A
wg.D0PinA =2;   
wg.D1PinA =3;   
//GATE B
wg.D0PinB =18;  
wg.D1PinB =19;   
//GATE C
wg.D0PinC =20;  
wg.D1PinC =21;  
// Reader enable
wg.begin(TRUE, FALSE, FALSE);  // wg.begin(GateA , GateB, GateC)

// disable SD SPI
pinMode(4,OUTPUT);
digitalWrite(4,HIGH);
// Start ethernet
Serial.println(F("Iniciando ethernet..."));
Ethernet.begin(mac, ip, gateway, gateway, subnet);
Serial.println(Ethernet.localIP());

delay(2000);
Serial.println(F("Listo"));
ingresellave();
}
void loop()
{

if(wg.available()){
errorbit = false;
espere();  //WAITING SCREEN
ID = String(wg.getCode());   //OBTIENE ID DE TARJETA
String data = "/test.php?cliente=" + ID;  //CONCAT ID
sprintf(pageAdd,data.c_str(),totalCount);
Serial.println(pageAdd);
if(!getPage(server,serverPort,pageAdd)){
Serial.print(F("Falla "));
}else{
Serial.print(F("Paso "));
}
totalCount++;
Serial.println(totalCount,DEC);
}
if(ID != ""){
if(clientegraba != ""){
grabacarga(clientegraba,terrenograba);
}else{
if(errorbit == false){
noexiste();
delay(3000);
ID = "";
ingresellave();
}
}
}
delay(200);
}

byte getPage(IPAddress ipBuf,int thisPort, char *page)
{
int inChar;
char outBuf[128];
Serial.print(F("Conectando..."));
if(client.connect(ipBuf,thisPort) == 1){
Serial.println(F("Conectado"));
sprintf(outBuf,"GET %s HTTP/1.1",page);
client.println(outBuf);
sprintf(outBuf,"Host: %s",serverName);
client.println(outBuf);
client.println(F("Connection: closern"));
}else{
error();
errorbit = true;
Serial.println(F("Error en servidor"));
return 0;
}
// connectLoop controls the hardware fail timeout
int connectLoop = 0;
boolean reader = false;
while(client.connected())
{
while(client.available())
{ 
String line = client.readStringUntil('n');
if(reader){
StaticJsonBuffer<200> jsonBuffer;
JsonObject& datos = jsonBuffer.parseObject(line);
String apellido = datos["name"];
String cliente = datos["cliente"];
clientegraba = cliente;
long total = datos["total"];
long libres = datos["libres"];
String terreno = datos["terreno"];
terrenograba = terreno;
String costo = datos["costo"];
float price = costo.toFloat();
usuario(apellido,total,libres,price);
Serial.println("User: " + apellido);
Serial.println("Cliente: " + cliente);
Serial.println("Tarjeta: " + ID);
Serial.println("Terreno: " + terreno);
Serial.println("Costo: " + String(costo));
Serial.println("Total: " + String(total));
Serial.println("Libres: " + String(libres));
if(apellido != ""){
digitalWrite(34,HIGH);  //PUMP START
delay(1000);
digitalWrite(34,LOW);   //PUMP STOP
}
}
if(line == "r") {
reader = true;
break;
}
// set connectLoop to zero if a packet arrives
connectLoop = 0;
}
connectLoop++;
// if more than 10000 milliseconds since the last packet
if(connectLoop > 10000)
{
// then close the connection from this end.
Serial.println();
Serial.println(F("Timeout"));
client.stop();
}
// this is a delay for the connectLoop timing
delay(1);
}
Serial.println();
Serial.println(F("Desconectando."));
// close client end
client.stop();
delay(100);
return 1;
}
void grabacarga(String cliente, String terreno){

String data = "/graba.php?cliente=" + cliente + "&tarjeta=" + ID + "&terreno='" + terreno + "'";
sprintf(pageAdd,data.c_str(),totalCount);
Serial.println(pageAdd);
if(!getPage(server,serverPort,pageAdd)) Serial.print(F("Falla "));
else Serial.print(F("Paso "));
totalCount++;
Serial.println(totalCount,DEC);
ID = "";
terrenograba = "";
clientegraba = "";
inicio = true;
delay(9000);
ingresellave();
}

void welcome() {
u8g.setRot180();
u8g.setFont(u8g_font_unifont);
u8g.firstPage();  
do {
u8g.drawStr(18,22,"SISTEMA");
u8g.drawStr(15,50,"ACCESO RFID");
} while( u8g.nextPage() );
}

void ingresellave() {
u8g.setFont(u8g_font_unifont);
u8g.firstPage();  
do {
u8g.drawStr(0,10,"COLOQUE EL BIDON");
u8g.drawStr(2,35,"Y LUEGO INGRESE");
u8g.drawStr(25,60,"UNA LLAVE");
} while( u8g.nextPage() );
}
void error() {
u8g.setFont(u8g_font_unifont);
u8g.firstPage();  
do {
u8g.drawStr(40,10,"ERROR");
u8g.drawStr(33,35,"INTENTE");
u8g.drawStr(22,60,"NUEVAMENTE");
} while( u8g.nextPage() );
}
void espere() {
u8g.setFont(u8g_font_unifont);
u8g.firstPage();  
do {
u8g.drawStr(25,35,"ESPERE...");
} while( u8g.nextPage() );
}
void usuario(String user, long total, long libres, float costo) {

u8g.firstPage();  
do {
u8g.setFont(u8g_font_6x10);
u8g.drawStr(0,10,user.c_str());

String carga = "Carga:" + String(total) + "/" + String(libres);
u8g.setFont(u8g_font_unifont);
u8g.drawStr(15,33,carga.c_str());
if(total > libres){
long precio = total - libres;
float costototal = precio * costo;
Serial.println(costototal);
String valor = "Costo:$" + String(costototal);
u8g.drawStr(0,60,valor.c_str());
}

} while( u8g.nextPage() );
}

void noexiste(){
u8g.setFont(u8g_font_unifont);
u8g.firstPage();  
do {
u8g.drawStr(34,22,"USUARIO");
u8g.drawStr(12,50,"NO REGISTRADO");
} while( u8g.nextPage() );

}

系统电源来自12V 4.5A电源，Arduino Mega连同屏幕(LCD12864A)由5V引脚通过外部LM2596稳压器供电。屏幕数据引脚连接引脚4,5,6和7,rfid阅读器连接引脚2和3，水泵输出引脚34，其具有2222a pnp晶体管，连接1K基极电阻，发射极到地和集电极到SSR-24DA固态继电器。

谢谢。

Answer 1

在阅读了你提到wiegand故障的评论之后，以及它在几个小时的正常运行后才出现故障的事实，我会尝试看看它是否过热，或者尝试通过在电源上使用EMI滤波器和用铝盒或类似的屏蔽电路板来减少EMI。

水泵在打开或关闭时可能导致电源的高电磁干扰和电压尖峰。