diff --git a/Software/Sensor_Node/Sensor_Node.ino b/Software/Sensor_Node/Sensor_Node.ino
index 28ae758..692e1aa 100644
--- a/Software/Sensor_Node/Sensor_Node.ino
+++ b/Software/Sensor_Node/Sensor_Node.ino
@@ -10,32 +10,103 @@
#define ETH_CLK_MODE ETH_CLOCK_GPIO17_OUT
#define ETH_PHY_POWER 12
-const char* wifi_ssid = "SSID";
-const char* wifi_password = "PASSWORD";
+const char* wifi_ssid = "usrspace";
+const char* wifi_password = "1qay2wsx";
+
+float temperature = 0;
+float pressure = 0;
+float humidity = 0;
+
+String website = "";
Ticker Ticker_ReadSensors;
Ticker Ticker_Service;
-WebServer WebServer_Server1(80);
+WebServer WebServer_Server(80);
-Adafruit_BME280 BME280_Sensor1;
+Adafruit_BME280 BME280_Sensor;
void setup() {
- Serial.begin(115200);
-
+ Serial.begin(115200); // RS232
+ Wire.begin (13, 16); // I²C Init
+ pinMode (34, INPUT); // User Button
Ticker_ReadSensors.attach(15, ReadSensors);
Ticker_Service.attach(1, Service);
+
+ Serial.println("Starting...");
+
+ WiFi.begin(wifi_ssid, wifi_password);
+ while (WiFi.status() != WL_CONNECTED) {
+ delay(500);
+ Serial.print(".");
+ }
+ Serial.println("WiFi connected");
+ Serial.println("IP address: ");
+ Serial.println(WiFi.localIP());
+
+ WebServer_Server.on("/", handleRoot);
+ WebServer_Server.on("/metrics", handleMetrics);
+ WebServer_Server.onNotFound(handleNotFound);
+ WebServer_Server.begin();
+ Serial.println("HTTP server started");
+
+ if (! BME280_Sensor.begin(0x76)) {
+ Serial.println("Could not find a valid BME280 sensor, check wiring!");
+ while (1);
+ }
+
+ BME280_Sensor.setSampling(Adafruit_BME280::MODE_FORCED,
+ Adafruit_BME280::SAMPLING_X1, // temperature
+ Adafruit_BME280::SAMPLING_X1, // pressure
+ Adafruit_BME280::SAMPLING_X1, // humidity
+ Adafruit_BME280::FILTER_OFF);
}
void loop() {
-
+ WebServer_Server.handleClient();
}
void Service() {
-
+ Serial.print(".");
}
-
void ReadSensors() {
-
+ BME280_Sensor.takeForcedMeasurement();
+ temperature = BME280_Sensor.readTemperature();
+ pressure = (BME280_Sensor.readPressure() / 100.0F);
+ humidity = BME280_Sensor.readHumidity();
+ Serial.print("\nTemperature: ");
+ Serial.print(temperature);
+ Serial.print(", Pressure: ");
+ Serial.print(pressure);
+ Serial.print(", Humidity: ");
+ Serial.println(humidity);
+}
+
+void handleRoot() {
+ website = "";
+ website += "Temperatur: ";
+ website += temperature;
+ website += " °C
Luftdruck: ";
+ website += pressure;
+ website += " hPa
rel. Luftfeuchte: ";
+ website += humidity;
+ website += " %
";
+ WebServer_Server.send(200, "text/html", website);
+}
+
+void handleNotFound() {
+ WebServer_Server.send(404, "text/plain", "Not found!");
+}
+
+void handleMetrics() {
+ website = "";
+ website += "# HELP temperature The temperature measured in degree Celcius by the specified sensor.\n# TYPE temperature gauge\ntemperature{sensor=\"BME280\",address=\"0x76\"} ";
+ website += temperature;
+ website += "\n\n# HELP humidity The relative humidity measured in percent by the specified sensor.\n# TYPE humidity gauge\nhumidity{sensor=\"BME280\",address=\"0x76\"} ";
+ website += humidity;
+ website += "\n\n# HELP pressure The air pressure measured in hPa by the specified sensor.\n# TYPE pressure gauge\npressure{sensor=\"BME280\",address=\"0x76\"} ";
+ website += pressure;
+ website += "\n";
+ WebServer_Server.send(200, "text/plain", website);
}