Aquarium temperature sensing wemos d1arduino

thingiverse

This is my box to measure the water of aquarium right next to it, and also measures the temperature of house and humidity. It sends these measures to your smartphone. The aquarium temperature is measured by DS18B20 sensor and the house temperature and humidity is measured by DHT22 sensor. The file Wemosdht22ds18b20Thingspeak20180603.ino contains all the code to upload in wemos d1. To read data from sensor, first you need to upload it for wemos to thingspeak server and then with a app installed in your smartphone you can visualize. I have installed IoT ThingSpeak Monitor Widget https://play.google.com/store/apps/details?id=ua.livi.thingspeakmonitor&hl=en Code // www.arduinesp.com // #include <DHT.h> #include <ESP8266WiFi.h> #include <OneWire.h> //Se importan las librerías #include <DallasTemperature.h> // replace with your channel's thingspeak API key, String apiKey = "REOC43JCM4VUVVPH"; const char* ssid = "MIWIFI_2G_rx74"; //YOUR WIFI RED NAME const char* password = "kna2m9hv43gw"; //YOUR WIFI RED PASSWORD const char* server = "api.thingspeak.com"; #define DHTPIN D2 // what pin we’re connected to #define Pin D3 //Se declara el pin donde se conectará la DATA OneWire ourWire(Pin); //Se establece el pin declarado como bus para la comunicación OneWire DallasTemperature sensors(&ourWire); //Se instancia la librería DallasTemperature DHT dht(DHTPIN, DHT22,15); WiFiClient client; void setup() { Serial.begin(115200); delay(10); dht.begin(); sensors.begin(); //Se inician los sensores WiFi.begin(ssid, password); Serial.println(); Serial.println(); Serial.print("Connecting to "); Serial.println(ssid); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected"); } void loop() { float temp; sensors.requestTemperatures(); //Prepara el sensor para la lectura temp = sensors.getTempCByIndex(0); //temp = analogRead(A0); //temp = temp*0.31803; float hwifi = dht.readHumidity(); float twifi = dht.readTemperature(); if (isnan(hwifi) || isnan(twifi)) { Serial.println("Failed to read from DHT sensor!"); return; //sensors.requestTemperatures(); //Prepara el sensor para la lectura //Serial.print(sensors.getTempCByIndex(0)); //Se lee e imprime la temperatura en grados Celsius Serial.println(" grados Centigrados"); } if (client.connect(server,80)) { // "184.106.153.149" or api.thingspeak.com String postStr = apiKey; postStr +="&field1="; postStr += String(twifi); postStr +="&field2="; postStr += String(hwifi); postStr +="&field3="; postStr += String(temp); postStr += "\r\n\r\n"; client.print("POST /update HTTP/1.1\n"); client.print("Host: api.thingspeak.com\n"); client.print("Connection: close\n"); client.print("X-THINGSPEAKAPIKEY: "+apiKey+"\n"); client.print("Content-Type: application/x-www-form-urlencoded\n"); client.print("Content-Length: "); client.print(postStr.length()); client.print("\n\n"); client.print(postStr); Serial.print("Temperature Out: "); Serial.print(twifi); Serial.print("Humidity Out: "); Serial.print(hwifi); Serial.print("Temperature Out: "); Serial.print(temp); Serial.println("% send to Thingspeak"); } client.stop(); Serial.println("Waiting…"); // thingspeak needs minimum 15 sec delay between updates delay(700000); }