From e3dfe2cede583961f5b2c50dfa0ebd0fe888f2db Mon Sep 17 00:00:00 2001 From: Becascastro Date: Wed, 30 Sep 2020 09:57:14 +0200 Subject: [PATCH] NodeMCU reading temperature values from one DS18B20 and publish on a specific web link --- Benni_rafvirki_5.ino | 276 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 276 insertions(+) create mode 100644 Benni_rafvirki_5.ino diff --git a/Benni_rafvirki_5.ino b/Benni_rafvirki_5.ino new file mode 100644 index 0000000..3131346 --- /dev/null +++ b/Benni_rafvirki_5.ino @@ -0,0 +1,276 @@ + +//Codigo a funcionar bem. Temperatura a ser enviada para a base de dados +//http://bennirafvirki.is/sensors/ui/readings + +//Working well for Fífusel 7 +//Bennirafvirki.is/sensors/ +//Benni +3547738039 + +#ifdef ESP32 // Import required libraries +#include + +#else +#include +#include +#include +#include +#include +#endif +#include +#include +#define ONE_WIRE_BUS 4 // Data wire is connected to GPIO 4 = pin D2 +OneWire oneWire(ONE_WIRE_BUS); // Setup a oneWire instance to communicate with any OneWire devices +DallasTemperature sensors(&oneWire); // Pass our oneWire reference to Dallas Temperature sensor + +//#include +#include +#include +//#define SERVER_IP "bennirafvirki.is" + + +// Replaced parameters + +// Rikki + const char* ssid = "Asus2"; //network credentials + const char* password = "lukas1234"; + +/* F7 +//const char* ssid = "Hringdu-2.4G-2dfM"; //network credentials F7 +const char* password = "8hs9gmmV"; +*/ +const int tmin = -3; // min temperature +const int tmax = 3; // max temperature +String address = "electropepper"; +int time_of_delay = 50000; //if 50000 ms, than will measure each minute interval + + +// pinout D0=pin16; D1=pin5/GPIO5; D2=pin4/GPIO4; D3=0/Flash; D4=2/Tx1; D5=14; D6=12; D7=13=Rx2; D8=15=Tx2; D9=3=Rx0; D10=1=Tx0; +//const int relay1 = 5; //pin D1 = GPIO5 , relay 1 +//const int relay2 = 14; //pin D5 = GPIO14, relay 2 +const int relay1 = 16; +const int relay2 = 5; + +/// Serial port for debugging purposes Serial.begin(115200); Serial monitoring + +AsyncWebServer server(80); // Create AsyncWebServer object on port 80 + + +String readDSTemperatureC() // Call sensors.requestTemperatures() to issue a global temperature and Requests to all devices on the bus +{ + sensors.requestTemperatures(); + float tempC = sensors.getTempCByIndex(0); + + if (tempC == -127.00 || tempC == 85.00 ) + { + Serial.println("Failed to read from DS18B20 sensor"); + ///////////////////////////////////////////////////////////////////////////////////// + ////////////////////////////////////////////////////could you created README.MD file in your project folder with those notes? + return "--"; + } + else + { + //Serial.print("Temperature Celsius: "); + //Serial.print(tempC); + + } + return String(tempC); +} + + + +const char index_html[] PROGMEM = R"rawliteral( + + + + + + + + +

Fifusel, Reykjavik

+ +

+ + Temperature Celsius + %TEMPERATUREC% + °C +

Heaters are ON between -3 and 3 celcius

+ + +

Benni 7738039

+

Bennirafvirki.is

+

+ + + )rawliteral"; + + + +String processor(const String& var) // Replaces placeholder with DHT values + { + //Serial.println(var); + if (var == "TEMPERATUREC") + { + return readDSTemperatureC(); + } + return String(); + } + + +void setup() +{ + pinMode(relay1, OUTPUT); + digitalWrite(relay1, LOW); + pinMode(relay2, OUTPUT); + digitalWrite(relay2, LOW); + + + Serial.begin(115200); // Serial port for debugging purposes ( baud) + Serial.println(); + sensors.begin(); // Start up the DS18B20 library + + WiFi.begin(ssid, password); // Connect to Wi-Fi + Serial.println("Connecting to WiFi"); + while (WiFi.status() != WL_CONNECTED) + { + delay(500); + Serial.print("."); + } + Serial.println(); + Serial.println(WiFi.localIP()); // Print ESP Local IP Address 192.168.1.18 + + + + server.on("/", HTTP_GET, [](AsyncWebServerRequest * request) // Route for root / web page + { + request->send_P(200, "text/html", index_html, processor); + }); + server.on("/temperaturec", HTTP_GET, [](AsyncWebServerRequest * request) + { + request->send_P(200, "text/plain", readDSTemperatureC().c_str()); + }); + + server.begin(); // Start server + +} + + +void loop() +{ + + float tempC = sensors.getTempCByIndex(0); + + if (tempC > tmin && tempC < tmax) + { + digitalWrite(relay1, LOW); + digitalWrite(relay2, LOW); + Serial.print("Temperature is "); + Serial.print(tempC); + Serial.println(" Celcius and the heaters are ON "); + } + else + { + digitalWrite(relay1, HIGH); + digitalWrite(relay2, HIGH); + Serial.print("Temperature is "); + Serial.print(tempC) ; + Serial.println(" Celcius and the heaters are OFF "); + } + delay(10000); + + // wait for WiFi connection + if ((WiFi.status() == WL_CONNECTED)) + { + + WiFiClient client; + HTTPClient http; + + Serial.print("[HTTP] begin...\n"); + // configure traged server and url + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////// + //could you created README.MD file in your project folder with those notes? + //change to: if tempC is between min and max, so it´s: 0 (OFF), 1 (ON), 2 sensor disconnected, 3 wire or resistance fail, 4 + // if tempC = -127, sensor or resistance disconnect, if tempC = 85, sensor + + int sensor_status = 0; + + String link1 = "http://bennirafvirki.is/sensors/add/temperature/"; + String link2 = String(tempC,DEC%4); + String link3 = "/address/"; + String link4 = String(address); + String link5 = "/state/"; + String link6 = String(sensor_status,DEC); + String link = link1 + link2 + link3 + link4 + link5 + link6 ; + + http.begin(client,link); //Serial.print(link); + + + http.addHeader("Content-Type", "application/json"); + + Serial.print("[HTTP] POST...\n"); + // start connection and send HTTP header and body + int httpCode = http.POST("{\"hello\":\"world\"}"); + + // httpCode will be negative on error + if (httpCode > 0) + { + // HTTP header has been send and Server response header has been handled + Serial.printf("[HTTP] POST... code: %d\n", httpCode); + + // file found at server + if (httpCode == HTTP_CODE_OK) + { + const String& payload = http.getString(); + Serial.println("received payload:\n<<"); + Serial.println(payload); + Serial.println(">>"); + } + } + else + { + Serial.printf("[HTTP] POST... failed, error: %s\n", http.errorToString(httpCode).c_str()); + } + + http.end(); + } + + delay(time_of_delay); + + +}