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@ -44,6 +44,10 @@ float temperature = 0.0;
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float humidity = 0.0;
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#endif // DHT_TYPE
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#ifdef RAIN_PIN
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bool raining = false;
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#endif // RAIN_PIN
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static const char TEXT_PLAIN[] PROGMEM = "text/plain";
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void
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@ -56,13 +60,17 @@ void
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send_metrics()
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{
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static const size_t dht_size = 228;
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char message[dht_size + 1];
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static const size_t rain_size = 86;
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size_t message_size =
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#ifdef DHT_TYPE
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dht_size +
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#endif // DHT_TYPE
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#ifdef RAIN_PIN
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rain_size +
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#endif // RAIN_PIN
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1;
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char message[message_size];
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snprintf(message, message_size,
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#ifdef DHT_TYPE
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@ -71,9 +79,19 @@ send_metrics()
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"temperature_celsius %.2f\n"
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"# HELP relative_humidity Relative humidity, in percents\n"
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"# TYPE relative_humidity gauge\n"
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"relative_humidity %.2f\n",
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temperature, humidity
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"relative_humidity %.2f\n"
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#endif // DHT_TYPE
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#ifdef RAIN_PIN
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"# HELP raining Boolean value checking if it is raining\n"
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"# TYPE raining gauge\n"
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"raining %d\n"
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#endif // RAIN_PIN
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#ifdef DHT_TYPE
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, temperature, humidity
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#endif // DHT_TYPE
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#ifdef RAIN_PIN
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, raining ? 1 : 0
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#endif // RAIN_PIN
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);
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server.send(200, "text/plain; version=0.0.4; charset=utf-8", message);
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@ -119,6 +137,10 @@ setup()
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dht.begin();
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#endif // DHT_TYPE
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#ifdef RAIN_PIN
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pinMode(RAIN_PIN, INPUT);
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#endif // RAIN_PIN
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Serial.println("All set, starting the loop.");
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}
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@ -133,6 +155,10 @@ read_sensors()
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humidity = dht.readHumidity();
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#endif
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#ifdef RAIN_PIN
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raining = (digitalRead(RAIN_PIN) == HIGH);
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#endif
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// Turn off the LED to indicate work is finished
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digitalWrite(LED_BUILTIN, HIGH);
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}
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