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giess-o-mat
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DIY fertilizer mixer and plant watering machine https://www.xythobuz.de/giessomat.html
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giess-o-mat/src/WifiStuff.cpp

WifiStuff.cpp 19KB
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  1. #include <Arduino.h>

  2. 

  3. #ifdef PLATFORM_ESP

  4. 

  5. #if defined(ARDUINO_ARCH_ESP8266)

  6. 

  7. #include <ESP8266WiFi.h>

  8. #include <ESP8266WebServer.h>

  9. #include <ESP8266mDNS.h>

  10. 

  11. #elif defined(ARDUINO_ARCH_ESP32)

  12. 

  13. #include <WiFi.h>

  14. #include <WebServer.h>

  15. #include <ESPmDNS.h>

  16. 

  17. #endif

  18. 

  19. #include <WebSocketsServer.h>

  20. 

  21. #include "wifi.h"

  22. #include "config.h"

  23. #include "config_pins.h"

  24. #include "Functionality.h"

  25. #include "SimpleUpdater.h"

  26. #include "DebugLog.h"

  27. #include "WifiStuff.h"

  28. 

  29. UPDATE_WEB_SERVER server(80);

  30. WebSocketsServer socket = WebSocketsServer(81);

  31. SimpleUpdater updater;

  32. unsigned long last_server_handle_time = 0;

  33. unsigned long last_websocket_update_time = 0;

  34. 

  35. String message_buffer_a;

  36. String message_buffer_b;

  37. String message_buffer_c;

  38. String message_buffer_d;

  39. 

  40. void wifi_set_message_buffer(String a, String b, String c, String d) {

  41.     message_buffer_a = a;

  42.     message_buffer_b = b;

  43.     message_buffer_c = c;

  44.     message_buffer_d = d;

  45. }

  46. 

  47. void wifi_schedule_websocket(void) {

  48.     last_websocket_update_time = 0;

  49. }

  50. 

  51. void wifi_send_status_broadcast(void) {

  52.     String a = message_buffer_a ;

  53.     String b = message_buffer_b;

  54.     String c = message_buffer_c;

  55.     String d = message_buffer_d;

  56.     

  57.     a.replace("\"", "'");

  58.     b.replace("\"", "'");

  59.     c.replace("\"", "'");

  60.     d.replace("\"", "'");

  61.     

  62.     String ws = "{\n";

  63.     

  64.     ws += "\"a\": \"" + a + "\",\n";

  65.     ws += "\"b\": \"" + b + "\",\n";

  66.     ws += "\"c\": \"" + c + "\",\n";

  67.     ws += "\"d\": \"" + d + "\",\n";

  68.     

  69.     ws += "\"state\": \"" + String(control_state_name()) + "\",\n";

  70.     

  71.     ws += F("\"valves\": [ ");

  72.     for (int i = 0; i < VALVE_COUNT; i++) {

  73.         ws += "\"";

  74.         ws += get_plants()->getValves()->getPin(i) ? "1" : "0";

  75.         ws += "\"";

  76.         

  77.         if (i < (VALVE_COUNT - 1)) {

  78.             ws += ", ";

  79.         }

  80.     }

  81.     ws += " ],\n";

  82.     

  83.     ws += F("\"pumps\": [ ");

  84.     for (int i = 0; i < PUMP_COUNT; i++) {

  85.         ws += "\"";

  86.         ws += get_plants()->getPumps()->getPin(i) ? "1" : "0";

  87.         ws += "\"";

  88.         

  89.         if (i < (PUMP_COUNT - 1)) {

  90.             ws += ", ";

  91.         }

  92.     }

  93.     ws += " ],\n";

  94.     

  95.     ws += F("\"switches\": [ ");

  96.     for (int i = 0; i < SWITCH_COUNT; i++) {

  97.         ws += "\"";

  98.         ws += get_plants()->getSwitches()->getPin(i) ? "1" : "0";

  99.         ws += "\"";

  100.         

  101.         if (i < (SWITCH_COUNT - 1)) {

  102.             ws += ", ";

  103.         }

  104.     }

  105.     ws += " ],\n";

  106.     

  107.     ws += "\"switchstate\": \"";

  108.     Plants::Waterlevel wl = get_plants()->getWaterlevel();

  109.     if (wl == Plants::empty) {

  110.         ws += F("tank empty");

  111.     } else if (wl == Plants::inbetween) {

  112.         ws += F("tank half-filled");

  113.     } else if (wl == Plants::full) {

  114.         ws += F("tank full");

  115.     } else {

  116.         ws += F("invalid sensor state");

  117.     }

  118.     ws += "\"\n";

  119.     ws += "}";

  120.     

  121.     wifi_send_websocket(ws);

  122. }

  123. 

  124. void wifi_send_websocket(String s) {

  125.     socket.broadcastTXT(s);

  126. }

  127. 

  128. void handleRoot() {

  129.     String message = F("<!DOCTYPE html>\n");

  130.     message += F("<html><head>\n");

  131.     message += F("<meta charset='utf-8'/>\n");

  132.     message += F("<meta name='viewport' content='width=device-width, initial-scale=1'/>\n");

  133.     message += F("<title>Gieß-o-mat</title>\n");

  134.     

  135.     message += F("<style type='text/css'>\n");

  136.     message += F(".container {\n");

  137.     message += F("display: flex;\n");

  138.     message += F("}\n");

  139.     

  140.     message += F(".ui {\n");

  141.     message += F("width: max-content;\n");

  142.     message += F("height: max-content;\n");

  143.     message += F("margin-right: 1em;\n");

  144.     message += F("padding: 0 1.0em;\n");

  145.     message += F("border: 1px dashed black;\n");

  146.     message += F("}\n");

  147.     

  148.     message += F(".io {\n");

  149.     message += F("width: max-content;\n");

  150.     message += F("height: max-content;\n");

  151.     message += F("margin-right: 1em;\n");

  152.     message += F("padding: 0.8em 1.0em;\n");

  153.     message += F("border: 1px dashed black;\n");

  154.     message += F("font-family: monospace;\n");

  155.     message += F("}\n");

  156.     

  157.     message += F(".switch {\n");

  158.     message += F("width: max-content;\n");

  159.     message += F("border: 1px solid black;\n");

  160.     message += F("border-radius: 50%;\n");

  161.     message += F("padding: 2em;\n");

  162.     message += F("margin: 1em;\n");

  163.     message += F("}\n");

  164.     

  165.     message += F(".valve {\n");

  166.     message += F("width: max-content;\n");

  167.     message += F("border: 1px solid black;\n");

  168.     message += F("border-radius: 50%;\n");

  169.     message += F("padding: 2em;\n");

  170.     message += F("margin: 1em;\n");

  171.     message += F("}\n");

  172.     

  173.     message += F(".pump {\n");

  174.     message += F("width: max-content;\n");

  175.     message += F("border: 1px solid black;\n");

  176.     message += F("border-radius: 50%;\n");

  177.     message += F("padding: 2em;\n");

  178.     message += F("margin: 1em;\n");

  179.     message += F("}\n");

  180.     

  181.     message += F(".info {\n");

  182.     message += F("width: max-content;\n");

  183.     message += F("height: max-content;\n");

  184.     message += F("padding: 0 1.0em;\n");

  185.     message += F("border: 1px dashed black;\n");

  186.     message += F("font-family: monospace;\n");

  187.     message += F("}\n");

  188.     

  189.     message += F(".log {\n");

  190.     message += F("max-height: 300px;\n");

  191.     message += F("padding: 0 1.0em;\n");

  192.     message += F("margin: 1em 0;\n");

  193.     message += F("border: 1px dashed black;\n");

  194.     message += F("font-family: monospace;\n");

  195.     message += F("overflow-y: scroll;\n");

  196.     message += F("word-break: break-all;\n");

  197.     message += F("}\n");

  198.     

  199.     message += F("#logbuf {\n");

  200.     message += F("white-space: break-spaces;\n");

  201.     message += F("}\n");

  202.     

  203.     message += F(".pad {\n");

  204.     message += F("background: black;\n");

  205.     message += F("border: 3px solid black;\n");

  206.     message += F("border-radius: 20px;\n");

  207.     message += F("width: max-content;\n");

  208.     message += F("padding: 1.5em;\n");

  209.     message += F("margin-left: auto;\n");

  210.     message += F("margin-right: auto;\n");

  211.     message += F("}\n");

  212.     

  213.     message += F(".pad input {\n");

  214.     message += F("background: #fff0cf;\n");

  215.     message += F("border-radius: 6px;\n");

  216.     message += F("font-weight: bold;\n");

  217.     message += F("font-family: monospace;\n");

  218.     message += F("font-size: 1.2em;\n");

  219.     message += F("padding: 0.5em 1em;\n");

  220.     message += F("margin: 0.5em;\n");

  221.     message += F("}\n");

  222.     

  223.     // https://codepen.io/hawkz/pres/RpPaGK

  224.     message += F(".lcd {\n");

  225.     //message += F("background: #9ea18c;\n");

  226.     message += F("background: #9ed18c;\n");

  227.     message += F("border: 5px solid black;\n");

  228.     message += F("border-radius: 10px;\n");

  229.     message += F("width: max-content;\n");

  230.     message += F("padding: 0.65em 1em;\n");

  231.     message += F("box-shadow: inset 0 0 5px 5px rgba(0,0,0,.1);\n");

  232.     message += F("font-weight: bold;\n");

  233.     message += F("font-family: monospace;\n");

  234.     message += F("letter-spacing: 0.1em;\n");

  235.     message += F("font-size: 1.2em;\n");

  236.     message += F("line-height: 160%;\n");

  237.     message += F("color: #21230e;\n");

  238.     message += F("text-shadow: -1px 2px 1px rgba(0,0,0,.1);\n");

  239.     message += F("margin-left: auto;\n");

  240.     message += F("margin-right: auto;\n");

  241.     message += F("}\n");

  242.     

  243.     message += F("#state {\n");

  244.     message += F("text-align: center;\n");

  245.     message += F("}\n");

  246.     message += F("</style>\n");

  247.     

  248.     message += F("</head><body>\n");

  249.     message += F("<h1>Gieß-o-mat</h1>\n");

  250.     

  251.     message += F("<div class='container'>\n");

  252.     message += F("<div class='ui'>\n");

  253.     message += F("<pre class='lcd'>\n");

  254.     message += message_buffer_a + '\n';

  255.     message += message_buffer_b + '\n';

  256.     message += message_buffer_c + '\n';

  257.     message += message_buffer_d + '\n';

  258.     message += F("</pre>\n");

  259.     

  260.     message += F("<form class='pad'>\n");

  261.     message += F("<input type='button' value='1'>");

  262.     message += F("<input type='button' value='2'>");

  263.     message += F("<input type='button' value='3'>");

  264.     message += F("<br>\n");

  265.     message += F("<input type='button' value='4'>");

  266.     message += F("<input type='button' value='5'>");

  267.     message += F("<input type='button' value='6'>");

  268.     message += F("<br>\n");

  269.     message += F("<input type='button' value='7'>");

  270.     message += F("<input type='button' value='8'>");

  271.     message += F("<input type='button' value='9'>");

  272.     message += F("<br>\n");

  273.     message += F("<input type='button' value='*'>");

  274.     message += F("<input type='button' value='0'>");

  275.     message += F("<input type='button' value='#'>");

  276.     message += F("</form>\n");

  277.     

  278.     message += F("<p id='state'>\n");

  279.     message += F("State: ");

  280.     message += control_state_name();

  281.     message += F("</p></div>\n");

  282.     

  283.     message += F("<div class='io'>\n");

  284.     message += F("Switches: <span id='switchstate'>");

  285.     

  286.     Plants::Waterlevel wl = get_plants()->getWaterlevel();

  287.     if (wl == Plants::empty) {

  288.         message += F("tank empty");

  289.     } else if (wl == Plants::inbetween) {

  290.         message += F("tank half-filled");

  291.     } else if (wl == Plants::full) {

  292.         message += F("tank full");

  293.     } else {

  294.         message += F("invalid sensor state");

  295.     }

  296.     message += F("</span>");

  297.     

  298.     message += F("<div class='container'>\n");

  299.     for (int i = 0; i < SWITCH_COUNT; i++) {

  300.         message += F("<div class='switch' style='background-color: ");

  301.         if (get_plants()->getSwitches()->getPin(i)) {

  302.             message += F("red");

  303.         } else {

  304.             message += F("green");

  305.         }

  306.         message += F(";'>S");

  307.         message += String(i + 1);

  308.         message += F("</div>");

  309.     }

  310.     message += F("</div><hr>\n");

  311.     

  312.     message += F("Valves:\n");

  313.     message += F("<div class='container'>\n");

  314.     for (int i = 0; i < VALVE_COUNT; i++) {

  315.         message += F("<div class='valve' style='background-color: ");

  316.         if (get_plants()->getValves()->getPin(i)) {

  317.             message += F("red");

  318.         } else {

  319.             message += F("green");

  320.         }

  321.         message += F(";'>V");

  322.         message += String(i + 1);

  323.         message += F("</div>");

  324.     }

  325.     message += F("</div><hr>\n");

  326.     

  327.     message += F("Pumps:\n");

  328.     message += F("<div class='container'>\n");

  329.     for (int i = 0; i < PUMP_COUNT; i++) {

  330.         message += F("<div class='pump' style='background-color: ");

  331.         if (get_plants()->getPumps()->getPin(i)) {

  332.             message += F("red");

  333.         } else {

  334.             message += F("green");

  335.         }

  336.         message += F(";'>P");

  337.         message += String(i + 1);

  338.         message += F("</div>");

  339.     }

  340.     message += F("</div><hr>\n");

  341.     message += F("Green means valve is closed / pump is off / switch is not submersed.\n");

  342.     message += F("<br>\n");

  343.     message += F("Red means valve is open / pump is running / switch is submersed.</div>\n");

  344.     

  345.     message += F("<div class='info'><p>\n");

  346.     message += F("Version: ");

  347.     message += FIRMWARE_VERSION;

  348.     message += F("\n<br>\n");

  349.     message += F("MAC: ");

  350.     message += WiFi.macAddress();

  351.     message += F("\n</p>\n");

  352. 

  353. #if defined(ARDUINO_ARCH_ESP8266)

  354.     

  355.     message += F("\n<p>\n");

  356.     message += F("Reset reason: ");

  357.     message += ESP.getResetReason();

  358.     message += F("\n<br>\n");

  359.     message += F("Free heap: ");

  360.     message += String(ESP.getFreeHeap());

  361.     message += F(" (");

  362.     message += String(ESP.getHeapFragmentation());

  363.     message += F("% fragmentation)");

  364.     message += F("\n<br>\n");

  365.     message += F("Free sketch space: ");

  366.     message += String(ESP.getFreeSketchSpace());

  367.     message += F("\n<br>\n");

  368.     message += F("Flash chip real size: ");

  369.     message += String(ESP.getFlashChipRealSize());

  370. 

  371.     if (ESP.getFlashChipSize() != ESP.getFlashChipRealSize()) {

  372.         message += F("\n<br>\n");

  373.         message += F("WARNING: sdk chip size (");

  374.         message += (ESP.getFlashChipSize());

  375.         message += F(") does not match!");

  376.     }

  377.     

  378.     message += F("\n</p>\n");

  379.     

  380. #elif defined(ARDUINO_ARCH_ESP32)

  381. 

  382.     message += F("\n<p>\n");

  383.     message += F("Free heap: ");

  384.     message += String(ESP.getFreeHeap() / 1024.0);

  385.     message += F("k\n<br>\n");

  386.     message += F("Free sketch space: ");

  387.     message += String(ESP.getFreeSketchSpace() / 1024.0);

  388.     message += F("k\n<br>\n");

  389.     message += F("Flash chip size: ");

  390.     message += String(ESP.getFlashChipSize() / 1024.0);

  391.     message += F("k\n</p>\n");

  392.     

  393. #endif

  394. 

  395.     message += F("<p>Try <a href='/update'>/update</a> for OTA firmware updates!</p>\n");

  396.     message += F("<p>Made by <a href='https://xythobuz.de'>xythobuz</a></p>\n");

  397.     message += F("<p><a href='https://git.xythobuz.de/thomas/giess-o-mat'>Project Repository</a></p>\n");

  398.     message += F("</div></div>\n");

  399.     

  400.     message += F("<div class='log'><pre id='logbuf'>\n");

  401.     message += debug.getBuffer();

  402.     message += F("</pre></div>\n");

  403.     message += F("</body>\n");

  404.     

  405.     message += F("<script type='text/javascript'>\n");

  406.     message += F("var socket = new WebSocket('ws://' + window.location.hostname + ':81');\n");

  407.     message += F("socket.onmessage = function(e) {\n");

  408.     message += F(    "if (e.data.startsWith('log:')) {\n");

  409.     message += F(        "var log = document.getElementById('logbuf');\n");

  410.     message += F(        "var div = document.getElementsByClassName('log')[0];\n");

  411.     message += F(        "log.innerHTML += e.data.substring(4);\n");

  412.     message += F(        "if (log.innerHTML.length > (1024 * 1024)) {\n");

  413.     message += F(            "log.innerHTML = log.innerHTML.substring(1024 * 1024);\n");

  414.     message += F(        "}\n");

  415.     message += F(        "div.scrollTop = div.scrollHeight;\n");

  416.     message += F(        "return;\n");

  417.     message += F(    "}\n");

  418.     message += F(    "var msg = JSON.parse(e.data);\n");

  419.     message += F(    "var str = msg.a + '\\n' + msg.b + '\\n' + msg.c + '\\n' + msg.d;\n");

  420.     message += F(    "console.log(str);\n");

  421.     message += F(    "var lcd = document.getElementsByClassName('lcd');\n");

  422.     message += F(    "lcd[0].innerHTML = str;\n");

  423.     message += F(    "var state = document.getElementById('state');\n");

  424.     message += F(    "state.innerHTML = \"State: \" + msg.state;\n");

  425.     

  426.     message += F(    "for (let i = 0; i < ");

  427.     message += String(VALVE_COUNT);

  428.     message += F("; i++) {\n");

  429.     message += F(       "var valves = document.getElementsByClassName('valve');\n");

  430.     message += F(       "if (msg.valves[i] == '0') {\n");

  431.     message += F(           "valves[i].style = 'background-color: green;';\n");

  432.     message += F(       "} else {\n");

  433.     message += F(           "valves[i].style = 'background-color: red;';\n");

  434.     message += F(       "}\n");

  435.     message += F(    "}\n");

  436.     

  437.     message += F(    "for (let i = 0; i < ");

  438.     message += String(PUMP_COUNT);

  439.     message += F("; i++) {\n");

  440.     message += F(       "var pumps = document.getElementsByClassName('pump');\n");

  441.     message += F(       "if (msg.pumps[i] == '0') {\n");

  442.     message += F(           "pumps[i].style = 'background-color: green;';\n");

  443.     message += F(       "} else {\n");

  444.     message += F(           "pumps[i].style = 'background-color: red;';\n");

  445.     message += F(       "}\n");

  446.     message += F(    "}\n");

  447.     

  448.     message += F(    "for (let i = 0; i < ");

  449.     message += String(SWITCH_COUNT);

  450.     message += F("; i++) {\n");

  451.     message += F(       "var switches = document.getElementsByClassName('switch');\n");

  452.     message += F(       "if (msg.switches[i] == '0') {\n");

  453.     message += F(           "switches[i].style = 'background-color: green;';\n");

  454.     message += F(       "} else {\n");

  455.     message += F(           "switches[i].style = 'background-color: red;';\n");

  456.     message += F(       "}\n");

  457.     message += F(    "}\n");

  458.     

  459.     message += F(    "var switchstate = document.getElementById('switchstate');\n");

  460.     message += F(    "switchstate.innerHTML = msg.switchstate;\n");

  461.     message += F("};\n");

  462.     

  463.     message += F("var buttons = document.getElementsByTagName('input');\n");

  464.     message += F("for (let i = 0; i < buttons.length; i++) {\n");

  465.     message += F(    "buttons[i].addEventListener('click', updateButton);\n");

  466.     message += F("}\n");

  467.     message += F("function updateButton() {\n");

  468.     message += F(    "socket.send(this.value);\n");

  469.     message += F("}\n");

  470.     message += F("</script>\n");

  471.     message += F("</html>\n");

  472. 

  473.     server.send(200, "text/html", message);

  474. }

  475. 

  476. void webSocketEvent(uint8_t num, WStype_t type, uint8_t *payload, size_t length) {

  477.     if ((type != WStype_TEXT) || (length != 1)) {

  478.         return;

  479.     }

  480.     

  481.     char c = payload[0];

  482.     if ((c >= '0') && (c <= '9')) {

  483.         control_act_input(c - '0');

  484.     } else if (c == '*') {

  485.         control_act_input(-1);

  486.     } else if (c == '#') {

  487.         control_act_input(-2);

  488.     }

  489. }

  490. 

  491. void wifi_setup() {

  492.     // Build hostname string

  493.     String hostname = "giess-o-mat";

  494. 

  495. #if defined(ARDUINO_ARCH_ESP8266)

  496. 

  497.     // Connect to WiFi AP

  498.     debug.println("WiFi: initializing");

  499.     WiFi.hostname(hostname);

  500.     WiFi.mode(WIFI_STA);

  501.     

  502.     debug.print("WiFi: connecting");

  503.     WiFi.begin(WIFI_SSID, WIFI_PW);

  504.     while (WiFi.status() != WL_CONNECTED) {

  505.         debug.print(".");

  506.         delay(LED_CONNECT_BLINK_INTERVAL);

  507.         digitalWrite(BUILTIN_LED_PIN, !digitalRead(BUILTIN_LED_PIN));

  508.     }

  509.     debug.println();

  510.     

  511. #elif defined(ARDUINO_ARCH_ESP32)

  512. 

  513.     // Set hostname workaround

  514.     debug.println("WiFi: set hostname");

  515.     WiFi.config(INADDR_NONE, INADDR_NONE, INADDR_NONE);

  516.     WiFi.setHostname(hostname.c_str());

  517.     

  518.     // Workaround for WiFi connecting only every 2nd reset

  519.     // https://github.com/espressif/arduino-esp32/issues/2501#issuecomment-513602522

  520.     debug.println("WiFi: connection work-around");

  521.     WiFi.onEvent([](WiFiEvent_t event, WiFiEventInfo_t info) {

  522.         if (info.disconnected.reason == 202) {

  523.             esp_sleep_enable_timer_wakeup(10);

  524.             esp_deep_sleep_start();

  525.             delay(100);

  526.         }

  527.     }, WiFiEvent_t::SYSTEM_EVENT_STA_DISCONNECTED);

  528. 

  529.     // Connect to WiFi AP

  530.     debug.println("WiFi: SSID=" WIFI_SSID);

  531.     debug.print("WiFi: connecting");

  532.     WiFi.mode(WIFI_STA);

  533.     WiFi.begin(WIFI_SSID, WIFI_PW);

  534.     while (WiFi.status() != WL_CONNECTED) {

  535.         debug.print(".");

  536.         delay(LED_CONNECT_BLINK_INTERVAL);

  537.         digitalWrite(BUILTIN_LED_PIN, !digitalRead(BUILTIN_LED_PIN));

  538.     }

  539.     debug.println();

  540.     

  541.     // Set hostname workaround

  542.     debug.println("WiFi: set hostname work-around");

  543.     WiFi.setHostname(hostname.c_str());

  544. 

  545. #endif

  546. 

  547.     // Setup HTTP Server

  548.     debug.println("WiFi: initializing HTTP server");

  549.     MDNS.begin(hostname.c_str());

  550.     updater.setup(&server);

  551.     server.on("/", handleRoot);

  552.     server.begin();

  553.     MDNS.addService("http", "tcp", 80);

  554.     

  555.     socket.begin();

  556.     socket.onEvent(webSocketEvent);

  557.     

  558.     debug.println("WiFi: setup done");

  559. }

  560. 

  561. void wifi_run() {

  562.     if ((millis() - last_server_handle_time) >= SERVER_HANDLE_INTERVAL) {

  563.         last_server_handle_time = millis();

  564.         server.handleClient();

  565.         socket.loop();

  566.         

  567. #ifdef ARDUINO_ARCH_ESP8266

  568.         MDNS.update();

  569. #endif // ARDUINO_ARCH_ESP8266

  570.     }

  571.     

  572.     if ((millis() - last_websocket_update_time) >= WEBSOCKET_UPDATE_INTERVAL) {

  573.         last_websocket_update_time = millis();

  574.         wifi_send_status_broadcast();

  575.     }

  576.     

  577.     // reset ESP every 6h to be safe

  578.     if (millis() >= (6 * 60 * 60 * 1000)) {

  579.         ESP.restart();

  580.     }

  581. }

  582. 

  583. #endif // PLATFORM_ESP