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WeatherStation/README.md

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+# Install "SimpleDHT" library from "Library Manager".
+	Arduino -> Sketch -> Include Library -> Manage Libraries -> Search "SimpleDHT"
+

WeatherStation/mC/mC.ino

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+#define LILYGO_WATCH_2019_WITH_TOUCH
+#include <LilyGoWatch.h>
+TTGOClass *ttgo;
+
+#include <SimpleDHT.h>
+
+#include <WiFi.h>
+#include <HTTPClient.h>
+
+
+const char* ssid = "";
+const char* password = "";
+
+//Your Domain name with URL path or IP address with path
+const char* serverName = "http://192.168.0.195:1234/setValue";
+
+// the following variables are unsigned longs because the time, measured in
+// milliseconds, will quickly become a bigger number than can be stored in an int.
+unsigned long lastTime = 0;
+// Timer set to 10 minutes (600000)
+//unsigned long timerDelay = 600000;
+// Set timer to 5 seconds (5000)
+unsigned long timerDelay = 300;
+
+String response;
+
+// for DHT11,
+//      VCC: 5V or 3V
+//      GND: GND
+//      DATA: 21 or 25
+int pinDHT11 = 21;
+SimpleDHT11 dht11(pinDHT11);
+
+
+String httpGETRequest(const char* serverName) {
+  HTTPClient http;
+
+  // Your IP address with path or Domain name with URL path 
+  http.begin(serverName);
+
+  // Send HTTP POST request
+  int httpResponseCode = http.GET();
+
+  String payload = "{}"; 
+
+  if (httpResponseCode>0) {
+    Serial.print("HTTP Response code: ");
+    Serial.println(httpResponseCode);
+    payload = http.getString();
+  }
+  else {
+    Serial.print("Error code: ");
+    Serial.println(httpResponseCode);
+  }
+  // Free resources
+  http.end();
+
+  return payload;
+}
+
+void setup() {
+  Serial.begin(115200);
+    ttgo = TTGOClass::getWatch();
+    ttgo->begin();
+    ttgo->openBL();
+
+    ttgo->tft->fillScreen(TFT_BLACK);
+    ttgo->tft->setTextColor(TFT_WHITE, TFT_BLACK);
+    ttgo->tft->setTextFont(4);
+
+
+      WiFi.begin(ssid, password);
+  Serial.println("Connecting");
+  while(WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println("");
+  Serial.print("Connected to WiFi network with IP Address: ");
+  Serial.println(WiFi.localIP());
+
+  Serial.println("Timer set to 5 seconds (timerDelay variable), it will take 5 seconds before publishing the first reading.");
+
+
+
+}
+
+void loop() {
+  // start working...
+  Serial.println("=================================");
+  Serial.println("Sample DHT11...");
+
+
+  // read without samples.
+  byte temperature = 0;
+  byte humidity = 0;
+  int err = SimpleDHTErrSuccess;
+  if ((err = dht11.read(&temperature, &humidity, NULL)) != SimpleDHTErrSuccess) {
+    Serial.print("Read DHT11 failed, err="); Serial.println(err); delay(1000);
+    return;
+  }
+
+  Serial.print("Sample OK: ");
+  Serial.print(String((float)temperature) + "* C, ");
+  Serial.println(String((float)humidity) + "% H");
+
+      ttgo->tft->drawString(String((int)temperature*1.8 + 32) + " *F",  5, 10);
+      ttgo->tft->drawString(String(humidity) + " % H",  5, 40);
+
+      int t = (int)temperature;
+      int h = (int)humidity;
+      String url = String(serverName) + "?t=" + t + "&h=" + h;
+      Serial.println(url);       
+      response = httpGETRequest(url.c_str());
+      Serial.println(response);
+
+
+
+  // DHT11 sampling rate is 1HZ.
+  delay(5000);
+}