137 lines
2.5 KiB
Arduino
137 lines
2.5 KiB
Arduino
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#include <Wire.h>
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#include <Adafruit_Sensor.h>
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#include <Adafruit_BMP280.h>
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#include <DHT.h>
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// ================= SENSOR AKTIVIERUNG =================
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#define USE_DHT22 1
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#define USE_RAIN 1
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#define USE_BMP280 0 // statt USE_SOIL
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// ================= DHT22 =================
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#define DHT22PIN 4
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#define DHT22TYPE DHT22
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DHT dht22(DHT22PIN, DHT22TYPE);
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// ================= Regenmodul =================
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const int rainAnalogPin = A1;
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const int rainDigitalPin = 2;
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// ================= BMP280 =================
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Adafruit_BMP280 bmp;
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// ---------------- SENSOR FUNKTIONEN ----------------
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#if USE_DHT22
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void readDHT22(float &temp, float &hum) {
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temp = dht22.readTemperature();
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hum = dht22.readHumidity();
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}
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#endif
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#if USE_RAIN
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void readRainSensor(int &analogValue, int &digitalValue) {
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analogValue = analogRead(rainAnalogPin);
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digitalValue = digitalRead(rainDigitalPin);
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}
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#endif
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#if USE_BMP280
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void readBMP280(float &pressure) {
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pressure = bmp.readPressure() / 100.0F; // Pa → hPa
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}
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#endif
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// ---------------- JSON BUILDER ----------------
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String buildJSON(float t22, float h22,
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int rainA, int rainD,
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float pressure) {
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String json = "{";
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// ===== DHT22 =====
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json += "\"dht22\":{";
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json += "\"temp\":" + String(t22, 2) + ",";
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json += "\"hum\":" + String(h22, 2);
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json += "},";
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// ===== Regen =====
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json += "\"rain\":{";
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json += "\"analog\":" + String(rainA) + ",";
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json += "\"wet\":";
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json += (rainD == LOW ? "true" : "false");
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json += "},";
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// ===== BMP280 =====
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json += "\"bmp280\":{";
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json += "\"pressure\":" + String(pressure, 2);
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json += "}";
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json += "}";
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return json;
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}
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// ---------------- SETUP ----------------
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void setup() {
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Serial.begin(9600);
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#if USE_DHT22
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dht22.begin();
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#endif
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#if USE_RAIN
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pinMode(rainDigitalPin, INPUT);
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#endif
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#if USE_BMP280
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/*if (!bmp.begin(0x77)) {
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Serial.println("BMP280 nicht gefunden!");
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}*/
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bool bmp_ok = false;
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bmp_ok = bmp.begin(0x76);
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if (!bmp_ok) {
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bmp_ok = bmp.begin(0x77);
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}
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if (bmp_ok) {
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Serial.println("BMP280 OK");
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} else {
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Serial.println("BMP280 NICHT GEFUNDEN");
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}
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#endif
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Serial.println("System gestartet...");
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}
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// ---------------- LOOP ----------------
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void loop() {
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delay(2000);
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float t22 = 0, h22 = 0;
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int rainA = 0, rainD = 0;
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float pressure = 0;
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#if USE_DHT22
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readDHT22(t22, h22);
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#endif
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#if USE_RAIN
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readRainSensor(rainA, rainD);
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#endif
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#if USE_BMP280
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readBMP280(pressure);
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#endif
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String json = buildJSON(t22, h22, rainA, rainD, pressure);
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Serial.println(json);
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}
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