A problémám az lenne, hogy figelnem kellene 2db relé kimenetét (nyit,tnyit), aminek a kimeneteit 24VDC-vel mérik.
Tehát mikor zárt a kimenet, akkor 0V, amikor nyitott, akkor 24V. A bemeneteken(2,3 digitális) látom is egy osztóval a működést.
A relék nem kapcsolgatnak gyorsan, viszont előfordulhat az egyszerre váltás is. Ez valószínüleg nem okoz gondot.
Naplózni kell az állapotváltozásokat SD kártyára, emellett a naplózott adatoknak elérhetőnek kell lennie Weben is bármikor.
Elérkeztünk a problémámhoz:
- Amikor az egyik átvált, és utána közvetlen a másik is,( gondolom azon időn belül, amíg a naplózás folyik ) akkor az elsőt sokszor kiírja, be, ki, be ,ki...
- A naplózás ideje alatt nem foglalkozik a változásokkal? Vagy igen? Nem értem.
- Amikor bezár a relé, azt azonnal jelzi a program, amikor kinyit akkor mindig késik 1-2 másodpercet.
Tudom, ez így elég zavaros, de nem tudtam jobban megfogalmazni a problémát. Kérdésekkel megoldjuk.
Arra gondoltam, hogy a naplózást valahogy el kell különíteni, és valamilyen pufferbe gyűjteni az adatokat, valós időben, csak nem tudom hogyan kell. Nem találtam hasonló megoldást a neten.
A hardware:
Arduino uno+ethernet panel SD foglalattal.
ide rakom az egész kódot, legyetek szívesek segítsetek!
Kód: Egész kijelölése
#include <SPI.h>
#include <Ethernet.h>
#include <SD.h>
#include <TimeLib.h>
#include <EthernetUdp.h>
#define FILE_NAME_LEN 20
// HTTP request type
#define HTTP_invalid 0
#define HTTP_GET 1
#define HTTP_POST 2
// file types
#define FT_HTML 0
#define FT_ICON 1
#define FT_CSS 2
#define FT_JAVASCRIPT 3
#define FT_JPG 4
#define FT_PNG 5
#define FT_GIF 6
#define FT_TEXT 7
#define FT_INVALID 8
#define PIN_ETH_SPI 10 // pin used for Ethernet chip SPI chip select
const int Nyit = 2;
const int tNyit = 3;
const int timeZone = 2;
const byte ip[] = { 192, 168, 1, 230 };
const byte gateway[] = { 192, 168, 1, 254 };
const byte subnet[] = { 255, 255, 255, 0 };
const byte dns[] = { 8, 8, 8, 8 };
IPAddress timeServer(81, 0, 124, 253);
const byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
boolean NyitAllapot, NyitAllapotOld;
boolean tNyitAllapot, tNyitAllapotOld;
String IrNyit, IrtNyit;
EthernetServer server(80);
EthernetUDP Udp;
unsigned int localPort = 8888;
File logFile;
void setup() {
// deselect Ethernet chip on SPI bus
pinMode(PIN_ETH_SPI, OUTPUT);
digitalWrite(PIN_ETH_SPI, HIGH);
Serial.begin(115200); // for debugging
Serial.println(F("Start!"));
if (!SD.begin(4)) {
Serial.println(F("SD card initialization failed."));
return; // SD card initialization failed
}
Ethernet.begin((uint8_t*)mac, ip, dns, gateway, subnet);
Udp.begin(localPort);
Serial.print(F("Ip: "));
Serial.println(Ethernet.localIP());
Serial.print(F("Mask: "));
Serial.println(Ethernet.subnetMask());
Serial.print(F("GW: "));
Serial.println(Ethernet.gatewayIP());
Serial.print(F("DNS: "));
Serial.println(Ethernet.dnsServerIP());
server.begin();
Serial.println(F("waiting for sync"));
setSyncProvider(getNtpTime);
Serial.println(F("Start listening for pins."));
logFile = SD.open("log.txt", FILE_WRITE);
if (logFile) {
logFile.print(year()); logFile.print("."); logFile.print(month()); logFile.print("."); logFile.print(day()); logFile.print(". ");
if (hour() < 10) logFile.print('0'); logFile.print(hour()); logFile.print(":");
if (minute() < 10) logFile.print('0'); logFile.print(minute()); logFile.print(":");
if (second() < 10) logFile.print('0');
logFile.print(second());
logFile.println(F(" : ***START!***"));
logFile.close();
}
NyitAllapot = digitalRead(Nyit);
tNyitAllapot = digitalRead(tNyit);
if (NyitAllapot) {
IrNyit = "24V";
}
else {
IrNyit = "Zárt";
}
if (tNyitAllapot) {
IrtNyit = "24V";
}
else {
IrtNyit = "Zárt";
}
NyitAllapotOld = !NyitAllapot;
tNyitAllapotOld = !tNyitAllapot;
}
void loop() {
EthernetClient client = server.available();
if (client) {
while (client.connected()) {
if (ServiceClient(&client)) {
Serial.println(F("Received request from client and finished responding.")); // received request from client and finished responding
break;
}
} // while (client.connected())
delay(1);
client.stop();
}
LogData();
}
void LogData(void) {
boolean ir;
NyitAllapot = digitalRead(Nyit);
tNyitAllapot = digitalRead(tNyit);
ir = false;
if ( !NyitAllapot == NyitAllapotOld ) {
ir = true;
if (NyitAllapot) {
IrNyit = "24V";
}
else {
IrNyit = "Zárt";
}
NyitAllapotOld = NyitAllapot;
}
if ( !tNyitAllapot == tNyitAllapotOld) {
ir = true;
if (tNyitAllapot) {
IrtNyit = "24V";
}
else {
IrtNyit = "Zárt";
}
tNyitAllapotOld = tNyitAllapot;
}
if (ir) {
logFile = SD.open("log.txt", FILE_WRITE);
if (logFile) {
logFile.print(year()); logFile.print(F(".")); logFile.print(month()); logFile.print(F(".")); logFile.print(day()); logFile.print(F(". "));
if (hour() < 10) logFile.print('0'); logFile.print(hour()); logFile.print(F(":"));
if (minute() < 10) logFile.print('0'); logFile.print(minute()); logFile.print(F(":"));
if (second() < 10) logFile.print('0'); logFile.print(second());
logFile.print(F(" - Nyitás: ")); logFile.print(IrNyit);
logFile.print(F(" - tNyitás: ")); logFile.println(IrtNyit);
logFile.close();
}
Serial.print(year()); Serial.print(F(".")); Serial.print(month()); Serial.print(F(".")); Serial.print(day()); Serial.print(F(". "));
if (hour() < 10) Serial.print('0'); Serial.print(hour()); Serial.print(F(":"));
if (minute() < 10) Serial.print('0'); Serial.print(minute()); Serial.print(F(":"));
if (second() < 10) Serial.print('0'); Serial.print(second());
Serial.print(F(" - Nyitás: ")); Serial.print(IrNyit);
Serial.print(F(" - tNyitás: ")); Serial.println(IrtNyit);
}
}
bool ServiceClient(EthernetClient *client)
{
static boolean currentLineIsBlank = true;
char cl_char;
File webFile;
// file name from request including path + 1 of null terminator
char file_name[FILE_NAME_LEN + 1] = {0}; // requested file name
char http_req_type = 0;
char req_file_type = FT_INVALID;
const char *file_types[] = {"text/html", "image/x-icon", "text/css", "application/javascript", "image/jpeg", "image/png", "image/gif", "text/plain"};
static char req_line_1[40] = {0}; // stores the first line of the HTTP request
static unsigned char req_line_index = 0;
static bool got_line_1 = false;
if (client->available()) { // client data available to read
cl_char = client->read();
if ((req_line_index < 39) && (got_line_1 == false)) {
if ((cl_char != '\r') && (cl_char != '\n')) {
req_line_1[req_line_index] = cl_char;
req_line_index++;
}
else {
got_line_1 = true;
req_line_1[39] = 0;
}
}
if ((cl_char == '\n') && currentLineIsBlank) {
// get HTTP request type, file name and file extension type index
http_req_type = GetRequestedHttpResource(req_line_1, file_name, &req_file_type);
if (http_req_type == HTTP_GET) { // HTTP GET request
if (req_file_type < FT_INVALID) { // valid file type
webFile = SD.open(file_name); // open requested file
if (webFile) {
// send a standard http response header
client->println(F("HTTP/1.1 200 OK"));
client->print(F("Content-Type: "));
client->println(file_types[req_file_type]);
client->println(F("Connection: close"));
client->println();
Serial.println(F("Send web page.")); // send web page
while (webFile.available()) {
int num_bytes_read;
char byte_buffer[64];
// get bytes from requested file
num_bytes_read = webFile.read(byte_buffer, 64);
// send the file bytes to the client
client->write(byte_buffer, num_bytes_read);
}
webFile.close();
}
else {
Serial.println(F("Failed to open file.")); // failed to open file
}
}
else {
// invalid file type
}
}
else if (http_req_type == HTTP_POST) {
Serial.println(F("A POST HTTP request was received.")); // a POST HTTP request was received
}
else {
Serial.println(F("Unsupported HTTP request received!")); // unsupported HTTP request received
}
req_line_1[0] = 0;
req_line_index = 0;
got_line_1 = false;
Serial.println(F("Finished sending response and web page.")); // finished sending response and web page
return 1;
}
if (cl_char == '\n') {
currentLineIsBlank = true;
}
else if (cl_char != '\r') {
currentLineIsBlank = false;
}
} // if (client.available())
return 0;
}
// extract file name from first line of HTTP request
char GetRequestedHttpResource(char *req_line, char *file_name, char *file_type)
{
char request_type = HTTP_invalid; // 1 = GET, 2 = POST. 0 = invalid
char *str_token;
*file_type = FT_INVALID;
str_token = strtok(req_line, " "); // get the request type
if (strcmp(str_token, "GET") == 0) {
request_type = HTTP_GET;
str_token = strtok(NULL, " "); // get the file name
if (strcmp(str_token, "/") == 0) {
strcpy(file_name, "index.htm");
*file_type = FT_HTML;
}
else if (strlen(str_token) <= FILE_NAME_LEN) {
// file name is within allowed length
strcpy(file_name, str_token);
// get the file extension
str_token = strtok(str_token, ".");
str_token = strtok(NULL, ".");
if (strcmp(str_token, "htm") == 0) {
*file_type = 0;
}
else if (strcmp(str_token, "ico") == 0) {
*file_type = 1;
}
else if (strcmp(str_token, "css") == 0) {
*file_type = 2;
}
else if (strcmp(str_token, "js") == 0) {
*file_type = 3;
}
else if (strcmp(str_token, "jpg") == 0) {
*file_type = 4;
}
else if (strcmp(str_token, "png") == 0) {
*file_type = 5;
}
else if (strcmp(str_token, "gif") == 0) {
*file_type = 6;
}
else if (strcmp(str_token, "txt") == 0) {
*file_type = 7;
}
else {
*file_type = 8;
}
}
else {
// file name too long
}
}
else if (strcmp(str_token, "POST") == 0) {
request_type = HTTP_POST;
}
return request_type;
}
/*-------- NTP code ----------*/
const int NTP_PACKET_SIZE = 48; // NTP time is in the first 48 bytes of message
byte packetBuffer[NTP_PACKET_SIZE]; //buffer to hold incoming & outgoing packets
time_t getNtpTime()
{
while (Udp.parsePacket() > 0) ; // discard any previously received packets
Serial.println("Transmit NTP Request");
sendNTPpacket(timeServer);
uint32_t beginWait = millis();
while (millis() - beginWait < 1500) {
int size = Udp.parsePacket();
if (size >= NTP_PACKET_SIZE) {
Serial.println("Receive NTP Response");
Udp.read(packetBuffer, NTP_PACKET_SIZE); // read packet into the buffer
unsigned long secsSince1900;
// convert four bytes starting at location 40 to a long integer
secsSince1900 = (unsigned long)packetBuffer[40] << 24;
secsSince1900 |= (unsigned long)packetBuffer[41] << 16;
secsSince1900 |= (unsigned long)packetBuffer[42] << 8;
secsSince1900 |= (unsigned long)packetBuffer[43];
return secsSince1900 - 2208988800UL + timeZone * SECS_PER_HOUR;
}
}
Serial.println("No NTP Response :-(");
return 0; // return 0 if unable to get the time
}
// send an NTP request to the time server at the given address
void sendNTPpacket(IPAddress &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();
}
void printDigits(int digits) {
// utility for digital clock display: prints preceding colon and leading 0
Serial.print(":");
if (digits < 10)
Serial.print('0');
Serial.print(digits);
}