cave/cave.ino

   1 #include <WiFi.h>
   2 #include <WiFiUdp.h>
   3 #include <HCSR04.h>
   4 #include <Adafruit_Sensor.h>
   5 #include <DHT.h>
   6 #include <DHT_U.h>
   7
   8 #include "cave-config.h"
   9
  10 const char*    wifi_ssid = WIFI_SSID;
  11 const char*    wifi_pass = WIFI_PASS;
  12
  13 // Grafana
  14 IPAddress      influxdb_ip(INFLUXDB_IP);
  15 long           influxdb_port = INFLUXDB_PORT;
  16 unsigned int   localPort = 2390;
  17 // MilliSeconds
  18 long unsigned  poll_int = POLL_INT;
  19 String city = CITY;
  20 String location = LOCATION;
  21 WiFiUDP Udp;
  22
  23 // TRIGGER, ECHO
  24 UltraSonicDistanceSensor distanceSensor(14, 12);
  25
  26 // Temp
  27 #define DHTPIN 27
  28 #define DHTTYPE DHT22
  29 DHT_Unified dht(DHTPIN, DHTTYPE);
  30
  31 void setup() {
  32
  33   #if defined(DEBUG)
  34   Serial.begin(115200);
  35   Serial.print("Connecting to ");
  36   Serial.println(wifi_ssid);
  37   #endif
  38
  39   WiFi.mode(WIFI_STA);
  40   WiFi.begin(WIFI_SSID, WIFI_PASS);
  41
  42   while (WiFi.status() != WL_CONNECTED) {
  43     delay(500);
  44     #if defined(DEBUG)
  45     Serial.print(".");
  46     #endif
  47   }
  48
  49   #if defined(DEBUG)
  50   Serial.println("WiFi connected");
  51   Serial.println("IP address: ");
  52   Serial.println(WiFi.localIP());
  53   #endif
  54
  55   dht.begin();
  56   sensor_t sensor;
  57   dht.temperature().getSensor(&sensor);
  58   dht.humidity().getSensor(&sensor);
  59
  60 }
  61
  62 void loop() {
  63   delay(POLL_INT);
  64
  65   sensors_event_t event;
  66
  67   dht.temperature().getEvent(&event);
  68   if (isnan(event.temperature)) {
  69       #if defined(DEBUG)
  70       Serial.println("DHT 22 temperature error");
  71       #endif
  72   } else {
  73       #if defined(DEBUG)
  74       Serial.println("Temperature: "+String(event.temperature));
  75       #endif
  76       sendToInfluxDB("temperature,city="+city+",location="+location, "value", String(event.temperature));
  77       double water_dist = distanceSensor.measureDistanceCm(event.temperature);
  78       #if defined(DEBUG)
  79       Serial.println("Distance: "+String(water_dist));
  80       #endif
  81       sendToInfluxDB("water_well,city="+city+",location="+location, "distance", String(water_dist));
  82   }
  83   dht.humidity().getEvent(&event);
  84   if (isnan(event.relative_humidity)) {
  85       #if defined(DEBUG)
  86       Serial.println("DHT 22 humidity error");
  87       #endif
  88   } else {
  89       #if defined(DEBUG)
  90       Serial.println("Humidity: "+String(event.relative_humidity));
  91       #endif
  92       sendToInfluxDB("humidity,city="+city+",location="+location, "value", String(event.relative_humidity));
  93   }
  94 }
  95
  96 void sendToInfluxDB(String measure, String key, String value) {
  97   String line = measure+" "+key+"="+value;
  98   Udp.begin(localPort);
  99   Udp.beginPacket(influxdb_ip, influxdb_port);
 100   Udp.print(line);
 101   Udp.endPacket();
 102 }