API tools faq
paste
Advertisement
Guest User

Charge Controller

a guest
Dec 19th, 2016
751
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
C++ 11.40 KB | None | 0 0
raw download clone embed print report
  1. #include <ModbusMaster.h>
  2. #include <ESP8266WiFi.h>
  3.  
  4. const char* ssid     = "xxxxxxxxxx"; //your wifi SSID/name
  5. const char* password = "xxxxxxxx"; //your wifi password
  6. const char* api_key = "xxxxxxxx"; //api from thingspeak
  7. const char* host = "api.thingspeak.com";
  8. const int debug = 1; //change to 0 when you are finished debugging
  9.  
  10. // instantiate ModbusMaster object
  11. ModbusMaster node;
  12.  
  13.  
  14. // put something here if you want it to occur before or after transmission to the serial interface...i.e. delay etc. I have these blank and it works fine
  15. void preTransmission()
  16. {
  17.  
  18. }
  19.  
  20. void postTransmission()
  21. {
  22.  
  23. }
  24.  
  25. void setup()
  26. {
  27.  
  28.  
  29.   // Modbus communication runs at 115200 baud --> you can make this slower if you want, but works fine either way. I would suggest unplugging the RS485 from the ESP when you are uploading the code. Plug it back in as soon as the code successfully uploads
  30.   Serial.begin(115200);
  31.  
  32.   // Modbus slave ID 1  --> this is the default for the 2210, so shouldn't need to change
  33.   node.begin(1, Serial);
  34.   // Callbacks allow us to configure the RS485 transceiver correctly
  35.   node.preTransmission(preTransmission);
  36.   node.postTransmission(postTransmission);
  37.  
  38.  
  39.  
  40.   WiFi.mode(WIFI_STA);
  41.   WiFi.disconnect();
  42.   delay(100);
  43.   WiFi.begin(ssid, password);
  44.   if (debug == 1){
  45.     Serial.print("Connecting to WiFi.");
  46.   }
  47.   while (WiFi.status() != WL_CONNECTED) {
  48.     delay(500);
  49.     if (debug == 1){
  50.       Serial.print(".");
  51.     }
  52.   }
  53.  
  54.   if (debug == 1){
  55.     Serial.println("");
  56.     Serial.println("WiFi connected");  
  57.     Serial.println("IP address: ");
  58.     Serial.println(WiFi.localIP());
  59.     delay(5000);
  60.   }
  61.  
  62. }
  63.  
  64. bool rs485DataReceived = true;
  65. int numLoops = 10000;
  66. void loop()
  67. {
  68.  
  69.   uint8_t result,time1, time2, time3, date1, date2, date3, dateDay, dateMonth, dateYear, timeHour, timeMinute, timeSecond;
  70.   // uint16_t data[6];
  71.   char buf[10];
  72.   String dtString;
  73.   float bvoltage, ctemp, btemp, bremaining, lpower, lcurrent, pvvoltage, pvcurrent, pvpower;
  74.  
  75.   if (debug == 1){
  76.     Serial.print("Beginning Loop ");
  77.     Serial.println(numLoops);
  78.   }
  79.  
  80.   //Get Date and Time, and update Controller Data and Time
  81.  
  82.   if (numLoops == 10000){ // Get date and time every 10000 loops
  83.  
  84.       dtString = getTime();
  85.       if (debug == 1){
  86.         Serial.println(dtString);
  87.       }
  88.       dateDay = atoi(dtString.substring(5,7).c_str());
  89.       dateYear = atoi(dtString.substring(14,16).c_str());
  90.       timeHour = atoi(dtString.substring(17,19).c_str());
  91.       timeMinute = atoi(dtString.substring(20,22).c_str());
  92.       timeSecond = atoi(dtString.substring(23,25).c_str());
  93.       if (dtString.substring(8,11)=="Jan"){
  94.           dateMonth=1;
  95.       }
  96.       if (dtString.substring(8,11)=="Feb"){
  97.           dateMonth=2;
  98.       }
  99.       if (dtString.substring(8,11)=="Mar"){
  100.           dateMonth=3;
  101.       }
  102.       if (dtString.substring(8,11)=="Apr"){
  103.           dateMonth=4;
  104.       }
  105.       if (dtString.substring(8,11)=="May"){
  106.           dateMonth=5;
  107.       }
  108.       if (dtString.substring(8,11)=="Jun"){
  109.           dateMonth=6;
  110.       }
  111.       if (dtString.substring(8,11)=="Jul"){
  112.           dateMonth=7;
  113.       }
  114.       if (dtString.substring(8,11)=="Aug"){
  115.           dateMonth=8;
  116.       }
  117.       if (dtString.substring(8,11)=="Sep"){
  118.           dateMonth=9;
  119.       }
  120.       if (dtString.substring(8,11)=="Oct"){
  121.           dateMonth=10;
  122.       }
  123.       if (dtString.substring(8,11)=="Nov"){
  124.           dateMonth=11;
  125.       }
  126.       if (dtString.substring(8,11)=="Dec"){
  127.           dateMonth=12;
  128.       }
  129.  
  130.       if (debug == 1){
  131.         Serial.print("Date: ");
  132.         Serial.print(dateDay);
  133.         Serial.print("/");
  134.         Serial.print(dateMonth);
  135.         Serial.print("/");
  136.         Serial.print(dateYear);
  137.         Serial.print("     ");
  138.         Serial.print(timeHour);
  139.         Serial.print(":");
  140.         Serial.print(timeMinute);
  141.         Serial.print(":");
  142.         Serial.println(timeSecond);
  143.         Serial.println(" ");
  144.         Serial.println(timeSecond<<8|timeMinute);
  145.         Serial.println(lowByte(timeSecond<<8|timeMinute));
  146.  
  147.         delay(2000);
  148.       }
  149.       node.setTransmitBuffer(0,(timeMinute<<8)|timeSecond);
  150.       node.setTransmitBuffer(1,(dateDay<<8)|timeHour);
  151.       node.setTransmitBuffer(2,(dateYear<<8)|dateMonth);
  152.       result = node.writeMultipleRegisters(0x9013,3);
  153.  
  154.       numLoops = 0;
  155.  
  156.   }   //End of get date and time
  157.  
  158.   delay(500);
  159.  
  160.   if (debug == 1){
  161.     result = node.readHoldingRegisters(0x9013,3);
  162.     if (result == node.ku8MBSuccess)
  163.     {
  164.       if (debug == 1){
  165.         Serial.println("------------------------------------------------------------------");
  166.         Serial.print("Time is: ");
  167.       }
  168.       time1 = lowByte(node.getResponseBuffer(0x00));
  169.       time2 = highByte(node.getResponseBuffer(0x00));
  170.       time3 = lowByte(node.getResponseBuffer(0x01));
  171.  
  172.       sprintf(buf, "%02d:%02d:%02d",time3,time2,time1);
  173.       Serial.println(buf);
  174.  
  175.       Serial.println(time2<<8|time1);
  176.       Serial.println(node.getResponseBuffer(0x00));
  177.  
  178.       Serial.println((time2<<8|time1)==(node.getResponseBuffer(0x00)));
  179.       date1 = (node.getResponseBuffer(0x01) >>8);
  180.       Serial.println(time3);
  181.       Serial.print("Date is: ");
  182.       Serial.println(date1);;
  183.       date2 = node.getResponseBuffer(0x02) & 0xff;
  184.       date3 = (node.getResponseBuffer(0x02) >>8);
  185.       Serial.println(date2);
  186.       Serial.println(date3);
  187.       Serial.println("------------------------------------------------------------------");
  188.     }else{
  189.       rs485DataReceived = false;
  190.     }
  191.     delay(1000);  
  192.   }  
  193.  
  194.  
  195.   // Read 20 registers starting at 0x3100)
  196.   result = node.readInputRegisters(0x3100, 20);
  197.   if (result == node.ku8MBSuccess)
  198.   {
  199.     if (debug == 1){
  200.       Serial.println("------------------------------------------------------------------");
  201.       Serial.print("Controller Temperature: ");
  202.     }
  203.     ctemp = node.getResponseBuffer(0x11)/100.0f;
  204.     if (debug == 1){
  205.       Serial.println(ctemp);
  206.       Serial.print("Battery Voltage: ");
  207.     }
  208.     bvoltage = node.getResponseBuffer(0x04)/100.0f;
  209.     if (debug == 1){
  210.       Serial.println(bvoltage);
  211.       Serial.print("Load Power: ");
  212.     }
  213.     lpower = ((long)node.getResponseBuffer(0x0F)<<16|node.getResponseBuffer(0x0E))/100.0f;
  214.     if (debug == 1){
  215.        Serial.println(lpower);    
  216.        Serial.print("Load Current: ");
  217.     }
  218.     lcurrent = (long)node.getResponseBuffer(0x0D)/100.0f;
  219.     if (debug == 1){
  220.       Serial.println(lcurrent);
  221.       Serial.print("PV Voltage: ");
  222.     }
  223.     pvvoltage = (long)node.getResponseBuffer(0x00)/100.0f;
  224.     if (debug == 1){
  225.       Serial.println(pvvoltage);
  226.       Serial.print("PV Current: ");
  227.     }
  228.     pvcurrent = (long)node.getResponseBuffer(0x01)/100.0f;
  229.     if (debug == 1){
  230.       Serial.println(pvcurrent);
  231.       Serial.print("PV Power: ");
  232.     }
  233.     pvpower = ((long)node.getResponseBuffer(0x03)<<16|node.getResponseBuffer(0x02))/100.0f;
  234.     if (debug == 1){
  235.       Serial.println(pvpower);
  236.       Serial.println("------------------------------------------------------------------");
  237.       delay(500);
  238.     }
  239.   }else{
  240.     rs485DataReceived = false;
  241.   }
  242.  
  243.  
  244.   delay(500);
  245.  
  246.   result = node.readInputRegisters(0x311A, 2);
  247.   if (result == node.ku8MBSuccess)
  248.   {
  249.     if (debug == 1){
  250.       Serial.println("------------------------------------------------------------------");
  251.       Serial.print("Battery Remaining %: ");
  252.     }
  253.     bremaining = node.getResponseBuffer(0x00)/1.0f;
  254.     if (debug == 1){
  255.       Serial.println(bremaining);
  256.       Serial.print("Battery Temperature: ");
  257.     }
  258.     btemp = node.getResponseBuffer(0x01)/100.0f;
  259.     if (debug == 1){
  260.       Serial.println(btemp);
  261.       Serial.println("------------------------------------------------------------------");
  262.       delay(500);
  263.     }
  264.   }else{
  265.     rs485DataReceived = false;
  266.   }
  267.  
  268.  
  269.  
  270.   delay(500);
  271.  
  272.   if (rs485DataReceived){
  273.       if (debug == 1){
  274.         Serial.print("connecting to ");
  275.         Serial.println(host);
  276.       }
  277.  
  278.       // Use WiFiClient class to create TCP connections
  279.       WiFiClient client;
  280.       const int httpPort = 80;
  281.       if (!client.connect(host, httpPort)) {
  282.         if (debug == 1){
  283.           Serial.println("connection failed");
  284.         }
  285.         return;
  286.       }
  287.  
  288.       // field 1 - 8 is setup in thingspeak
  289.  
  290.       String url = "/update";
  291.         url += "?api_key=";
  292.         url += api_key;
  293.         url += "&field1=";
  294.         url += bvoltage;
  295.         url += "&field2=";
  296.         url += bremaining;
  297.         url += "&field3=";
  298.         url += lcurrent;
  299.         url += "&field4=";
  300.         url += lpower;
  301.         url += "&field5=";
  302.         url += pvvoltage;
  303.         url += "&field6=";
  304.         url += pvcurrent;
  305.         url += "&field7=";
  306.         url += pvpower;  
  307.         url += "&field8=";
  308.         url += ctemp;
  309.  
  310.         if (debug == 1){
  311.           Serial.print("Requesting URL: ");
  312.           Serial.println(url);
  313.         }
  314.  
  315.         // This will send the request to the server
  316.         client.print(String("GET ") + url + " HTTP/1.1\r\n" +
  317.                      "Host: " + host + "\r\n" +
  318.                      "Connection: close\r\n\r\n");
  319.         unsigned long timeout = millis();
  320.         while (client.available() == 0) {
  321.           if (millis() - timeout > 5000) {
  322.             if (debug == 1){
  323.                Serial.println(">>> Client Timeout !");
  324.             }
  325.             client.stop();
  326.             return;
  327.           }
  328.         }
  329.  
  330.   }
  331.   numLoops++;
  332.  
  333.   delay(20000);
  334.  
  335.   if (WiFi.status() != WL_CONNECTED)
  336.   {
  337.     if (debug == 1){
  338.       Serial.print("Reconnecting WiFi...");
  339.     }
  340.     WiFi.begin(ssid, password);
  341.     while (WiFi.status() != WL_CONNECTED)
  342.     {
  343.       if (debug == 1){
  344.         Serial.print(".");
  345.       }
  346.       delay(500);
  347.     }
  348.   }
  349.  
  350. } //end Loop
  351.  
  352. String getTime() {
  353.   WiFiClient client;
  354.   int numRetries = 0;
  355.   while ((!!!client.connect("google.com", 80)) & (numRetries<10)) {
  356.     Serial.println("connection failed, retrying...");
  357.     if (WiFi.status() != WL_CONNECTED)
  358.     {
  359.       if (debug == 1){
  360.         Serial.print("Reconnecting WiFi...");
  361.       }
  362.       WiFi.begin(ssid, password);
  363.       while (WiFi.status() != WL_CONNECTED)
  364.       {
  365.         if (debug == 1){
  366.           Serial.print(".");
  367.         }
  368.         delay(500);
  369.       }
  370.     }
  371.  
  372.     numRetries++;
  373.   }
  374.  
  375.   if (numRetries==10){
  376.     numRetries=0;
  377.     while ((!!!client.connect("time.is", 80)) & (numRetries<10)) {
  378.       Serial.println("connection failed, retrying...");
  379.       if (WiFi.status() != WL_CONNECTED)
  380.       {
  381.         if (debug == 1){
  382.           Serial.print("Reconnecting WiFi...");
  383.         }
  384.         WiFi.begin(ssid, password);
  385.         while (WiFi.status() != WL_CONNECTED)
  386.         {
  387.           if (debug == 1){
  388.             Serial.print(".");
  389.           }
  390.           delay(500);
  391.         }
  392.       }
  393.  
  394.       numRetries++;
  395.     }
  396.   }
  397.  
  398.   client.print("HEAD / HTTP/1.1\r\n\r\n");
  399.  
  400.   while(!!!client.available()) {
  401.      yield();
  402.   }
  403.  
  404.   while(client.available()){
  405.     if (client.read() == '\n') {    
  406.       if (client.read() == 'D') {    
  407.         if (client.read() == 'a') {    
  408.           if (client.read() == 't') {    
  409.             if (client.read() == 'e') {    
  410.               if (client.read() == ':') {    
  411.                 client.read();
  412.                 String theDate = client.readStringUntil('\r');
  413.                 client.stop();
  414.                 return theDate;
  415.               }
  416.             }
  417.           }
  418.         }
  419.       }
  420.     }
  421.   }
  422. }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!