Boa Tarde pessoal
Estou com um problema grave em acionar um rele... fiz um código de batidas de sinal para a minha empresa... ou seja... a cada horário programado aciona uma sirene , buscando a hora via NTP do servidor da empresa... O problema é que a o acionar o rele o Arduíno parece que da um reset e a saída do rele acaba não acionando... se eu pegar o fio IN do rele e colocar diretamente na saida 5v ocorre o mesmo problema.
Parece que a fonte não tem forca para ligar o rele e acaba desligando todo o sistema.
abaixo segue o código
Apos o acionamento do rele tem um delay de 4 segundos e acontece um reset do Arduíno para efetuar uma nova busca de hora no servidor.
o modulo rele que estou usando e um JQC-3FF-S-Z
#include <SPI.h>
#include <Ethernet.h>
#include <EthernetUdp.h>
// Enter a MAC address for your controller below.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
byte mac[] = {
0xAA, 0xFF, 0xAA, 0xEF, 0xFE, 0xED
};
unsigned int localPort = 8888; // local port to listen for UDP packets
const char timeServer[] = "195.173.32.5"; // time.nist.gov NTP server
const int NTP_PACKET_SIZE = 48; // NTP time stamp is in the first 48 bytes of the message
byte packetBuffer[NTP_PACKET_SIZE]; //buffer to hold incoming and outgoing packets
// A UDP instance to let us send and receive packets over UDP
EthernetUDP Udp;
int led = 7;
void setup() {
pinMode(led, OUTPUT);//Define o pino como saida.
// You can use Ethernet.init(pin) to configure the CS pin
//Ethernet.init(10); // Most Arduino shields
//Ethernet.init(5); // MKR ETH shield
//Ethernet.init(0); // Teensy 2.0
//Ethernet.init(20); // Teensy++ 2.0
//Ethernet.init(15); // ESP8266 with Adafruit Featherwing Ethernet
//Ethernet.init(33); // ESP32 with Adafruit Featherwing Ethernet
// Open serial communications and wait for port to open:
Serial.begin(9600);
digitalWrite(led, LOW);//Apaga o LED.
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
// start Ethernet and UDP
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// Check for Ethernet hardware present
// no point in carrying on, so do nothing forevermore:
while (true) {
delay(1);
}
}
Udp.begin(localPort);
}
String Hora;
String Min;
String Sec;
String Final;
long Zeromin ;
long Zerosec ;
long UTC = 3600;
void loop() {
sendNTPpacket(timeServer); // send an NTP packet to a time server
// wait to see if a reply is available
delay(1000);
if (Udp.parsePacket()) {
// We've received a packet, read the data from it
Udp.read(packetBuffer, NTP_PACKET_SIZE); // read the packet into the buffer
// the timestamp starts at byte 40 of the received packet and is four bytes,
// or two words, long. First, extract the two words:
unsigned long highWord = word(packetBuffer[40], packetBuffer[41]);
unsigned long lowWord = word(packetBuffer[42], packetBuffer[43]);
// combine the four bytes (two words) into a long integer
// this is NTP time (seconds since Jan 1 1900):
unsigned long secsSince1900 = highWord << 16 | lowWord;
// Serial.print("Seconds since Jan 1 1900 = ");
// Serial.println(secsSince1900);
// now convert NTP time into everyday time:
// Unix time starts on Jan 1 1970. In seconds, that's 2208988800:
const unsigned long seventyYears = 2208988800UL;
// subtract seventy years:
unsigned long epoch = secsSince1900 - seventyYears;
// print Unix time:
// Serial.println(epoch);
// print the hour, minute and second:
//Serial.print("The UTC time is "); // UTC is the time at Greenwich Meridian (GMT)
// Serial.print("Aqui --->");
epoch = epoch - 10800;
// Serial.println(epoch);
// Serial.print((epoch % 86400L) / UTC); // print the hour (86400 equals secs per day)
// Serial.print(':');
if (((epoch % UTC) / 60) < 10) {
// In the first 10 minutes of each hour, we'll want a leading '0'
Zeromin = 0;
// Serial.print(Zeromin);
}
Min = (epoch % UTC) / 60;
// Serial.print(Min); // print the minute (3600 equals secs per minute)
// Serial.print(':');
if ((epoch % 60) < 10) {
// In the first 10 seconds of each minute, we'll want a leading '0'
Zerosec = 0;
// Serial.print(Zerosec);
}
Sec = epoch % 60 ;
// Serial.println(epoch % 60 ); // print the second
// ############################################################################################
Hora = ((epoch % 86400L) / UTC) ;
Final = Hora + ":" + Min + ":" + Sec ;
Serial.println("O de baixo e o certo");
Serial.println(Final);
if (Final == "5:57:0" ) tocar();
if (Final == "6:0:0" ) tocar();
if (Final == "6:57:0" ) tocar();
if (Final == "7:0:0" ) tocar();
if (Final == "11:0:0" ) tocar();
if (Final == "11:15:0" ) tocar();
if (Final == "11:30:0" ) tocar();
if (Final == "11:45:0" ) tocar();
if (Final == "11:48:0" ) tocar();
if (Final == "12:0:0" ) tocar();
if (Final == "12:3:0" ) tocar();
if (Final == "12:15:0" ) tocar();
if (Final == "12:18:0" ) tocar();
if (Final == "12:30:0" ) tocar();
if (Final == "12:33:0" ) tocar();
if (Final == "12:48:0" ) tocar();
if (Final == "13:3:0" ) tocar();
if (Final == "13:18:0" ) tocar();
if (Final == "16:0:0" ) tocar();
if (Final == "17:0:0" ) tocar();
}
// wait ten seconds before asking for the time again
// delay(500);
Ethernet.maintain();
}
// send an NTP request to the time server at the given address
void tocar()
{
digitalWrite(led, HIGH);
delay(4000);
digitalWrite(led, LOW);
delay(1000);
asm volatile (" jmp 0");
}
void sendNTPpacket(const char * address) {
// set all bytes in the buffer to 0
memset(packetBuffer, 0, NTP_PACKET_SIZE);
// Initialize values needed to form NTP request
// (see URL above for details on the packets)
packetBuffer[0] = 0b11100011; // LI, Version, Mode
packetBuffer[1] = 0; // Stratum, or type of clock
packetBuffer[2] = 6; // Polling Interval
packetBuffer[3] = 0xEC; // Peer Clock Precision
// 8 bytes of zero for Root Delay & Root Dispersion
packetBuffer[12] = 49;
packetBuffer[13] = 0x4E;
packetBuffer[14] = 49;
packetBuffer[15] = 52;
// all NTP fields have been given values, now
// you can send a packet requesting a timestamp:
Udp.beginPacket(address, 123); // NTP requests are to port 123
Udp.write(packetBuffer, NTP_PACKET_SIZE);
Udp.endPacket();
}
Ja usei esse sistema por muito tempo... vez ou outra acontecia esse problema... mas agora esta acontecendo seguidamente
