start putting sensors into seperate files

platformio.ini

@@ -81,9 +81,13 @@ monitor_speed = 115200
 
 build_flags =
     -D SENSOR_DHT22
-    -D DHTPIN=D7
+    -D SENSOR_DHT22_PIN=D7
-    -D dataDHT22_temperature_minchange=0.2
+    -D SENSOR_DHT22_temperature_minchange=0.2
-    -D dataDHT22_humidity_minchange=2.0
+    -D SENSOR_DHT22_temperature_senddelaymax=300000
+    -D SENSOR_DHT22_temperature_readdelay=10000
+    -D SENSOR_DHT22_humidity_minchange=2.0
+    -D SENSOR_DHT22_humidity_senddelaymax=300000
+    -D SENSOR_DHT22_humidity_readdelay=10000
 
     -D SENSOR_BMP180
     -D dataBMP180_temperature_minchange=0.2

src/main.cpp

@@ -11,24 +11,24 @@
 
 #include "Arduino.h"
 
-#include <Homie.h>
+#ifndef HOMIE_H
+  #include <Homie.h>
+  #define HOMIE_H
+#endif
+
 #define FW_NAME "sensoresp"  //gets printed on topic/$fw/name
 #define FW_VERSION "1.0.0"  //gets printed on topic/$fw/version
 
 #define STATUSNODE
 
-struct sensordata
+#ifndef SENSORDATA_H
-{
+  #include "sensordata.h"
-  unsigned long lastreadtime=0;
+  #define SENSORDATA_H
-  unsigned long readdelay=1000*10; //polling delay
+#endif
-  float minchange=0; //send new value if difference to last sent value is greater than this
-  float lastsentvalue=0;
-  unsigned long lastsent=0;
-  unsigned long senddelaymax=1000*60*5; //maximum time until current value is send
-};
 
 
 
+/*
 #ifdef SENSOR_DHT22
   // Digital pin connected to the DHT sensor.  // dht pins: 1=power, 2=data, 3=NC, 4=GND. 10k from data to power needed 
   #include <Adafruit_Sensor.h> //required for dht library
@@ -40,6 +40,11 @@ struct sensordata
   struct sensordata dataDHT22_humidity; //struct values are changed in setup()
   float value_humidityDHT=0;
 #endif
+*/
+#ifdef SENSOR_DHT22
+  #include "sensor_dht22.cpp"
+  Sensor_DHT22 sensor_dht22(SENSOR_DHT22_PIN);
+#endif
 
 
 #ifdef SENSOR_BMP180
@@ -305,14 +310,9 @@ void setup() {
 
   
   #ifdef SENSOR_DHT22
-    Serial.println("initializing dht");
+    sensor_dht22.init();
-    dht.begin();
+    sensor_dht22.setSettings_Temperature(SENSOR_DHT22_temperature_minchange,SENSOR_DHT22_temperature_senddelaymax,SENSOR_DHT22_temperature_readdelay);
-    #ifdef dataDHT22_temperature_minchange
+    sensor_dht22.setSettings_Humidity(SENSOR_DHT22_humidity_minchange,SENSOR_DHT22_humidity_senddelaymax,SENSOR_DHT22_humidity_readdelay);
-      dataDHT22_temperature.minchange=dataDHT22_temperature_minchange;
-    #endif
-    #ifdef dataDHT22_humidity_minchange
-      dataDHT22_humidity.minchange=dataDHT22_humidity_minchange;
-    #endif
   #endif
 
 
@@ -535,17 +535,11 @@ void setup() {
   #endif
 
   #ifdef SENSOR_DHT22
-  
+    sensor_dht22.advertise(sensorNode);
-    #ifndef SENSOR_BMP180
-      sensorNode.advertise("temperature");
-    #else
-      sensorNode.advertise("temperature_dht");
-    #endif
-    sensorNode.advertise("humidity");
   #endif
 
   #ifdef SENSOR_HS1101
-    #if defined(SENSOR_DHT22)
+    #ifdef SENSOR_DHT22
       sensorNode.advertise("humidity_hs1101");
     #else
       sensorNode.advertise("humidity");
@@ -631,71 +625,6 @@ void loop() {
 }
 
 
-#ifdef SENSOR_DHT22
-void loop_DHT22_temperature()
-{
-  sensordata &d=dataDHT22_temperature;
-  bool _changed=false;  
-
-  if (millis() >= (d.lastreadtime+d.readdelay)) {
-    value_temperatureDHT = dht.readTemperature();
-    if (fabs(d.lastsentvalue-value_temperatureDHT)>=d.minchange){
-      _changed=true;
-    }
-    d.lastreadtime=millis();
-  }
-
-  if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
-    Serial.print("Sending DHT22_temperature. reason=");
-    if (_changed) Serial.println("change"); else Serial.println("time");
-    checkESPStatus();
-
-    if (!(isnan(value_temperatureDHT) == 1)){ //success
-      
-      #ifndef SENSOR_BMP180
-        sensorNode.setProperty("temperature").send(String(value_temperatureDHT));
-        Homie.getLogger() << "temperature " << ": " << value_temperatureDHT << endl;
-      #else
-        sensorNode.setProperty("temperature_dht").send(String(value_temperatureDHT));
-        Homie.getLogger() << "temperature_dht " << ": " << value_temperatureDHT << endl;
-      #endif
-      
-      d.lastsentvalue=value_temperatureDHT;
-    }
-
-    d.lastsent=millis();
-  }
-}
-
-void loop_DHT22_humidity()
-{
-  sensordata &d=dataDHT22_humidity;
-  bool _changed=false;
-  
-
-  if (millis() >= (d.lastreadtime+d.readdelay)) {
-    value_humidityDHT = dht.readHumidity();
-    if (fabs(d.lastsentvalue-value_humidityDHT)>=d.minchange){
-      _changed=true;
-    }
-    d.lastreadtime=millis();
-  }
-
-  if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
-    Serial.print("Sending DHT22_humidity. reason=");
-    if (_changed) Serial.println("change"); else Serial.println("time");
-    checkESPStatus();
-
-    if (!(isnan(value_humidityDHT) == 1)){ //success
-      Homie.getLogger() << "humidity " << ": " << value_humidityDHT << endl;
-      sensorNode.setProperty("humidity").send(String(value_humidityDHT));
-      d.lastsentvalue=value_humidityDHT;
-    }
-    d.lastsent=millis();
-  }
-}
-#endif
-
 
 #ifdef SENSOR_BMP180
 void loop_BMP180_temperature()
@@ -1332,10 +1261,10 @@ void loop_raingauge()
 #endif
 
 void loopHandler() {
+  checkESPStatus();
 
   #ifdef SENSOR_DHT22
-    loop_DHT22_temperature();
+    sensor_dht22.loop();
-    loop_DHT22_humidity();
   #endif
 
   #ifdef SENSOR_BMP180

src/sensor_dht22.cpp

@@ -0,0 +1,151 @@
+// Digital pin connected to the DHT sensor.  // dht pins: 1=power, 2=data, 3=NC, 4=GND. 10k from data to power needed 
+#ifndef Adafruit_Sensor_H
+    #include <Adafruit_Sensor.h> //required for dht library
+    #define Adafruit_Sensor_H
+#endif
+#include <DHT.h>
+
+#ifndef SENSORDATA_H
+#include "sensordata.h"
+#define SENSORDATA_H
+#endif
+
+#ifndef HOMIE_H
+  #include <Homie.h>
+  #define HOMIE_H
+#endif
+
+
+
+
+
+class Sensor_DHT22
+{
+    
+private:
+    DHT *dht;
+    HomieNode *sensorNode; //reference to HomieNode
+
+    struct sensordata dataDHT22_temperature; //struct values are changed in setup()
+    struct sensordata dataDHT22_humidity; //struct values are changed in setup()
+    void loop_DHT22_temperature();
+    void loop_DHT22_humidity();
+
+public:
+    Sensor_DHT22(int pin);
+
+    void init();
+    void setSettings_Temperature(float minchange, unsigned long senddelaymax, unsigned long readdelay);
+    void setSettings_Humidity(float minchange, unsigned long senddelaymax, unsigned long readdelay);
+    void advertise(HomieNode& p_sensorNode);
+    void loop();
+    
+};
+
+
+Sensor_DHT22::Sensor_DHT22(int pin)
+{
+    dht = new DHT(pin,DHT22,11); //default:11
+}
+
+void Sensor_DHT22::init() //Things to be done during setup()
+{
+    Serial.println("initializing dht");
+    dht->begin();
+}
+
+//Also called during setup()
+void Sensor_DHT22::setSettings_Temperature(float minchange, unsigned long senddelaymax, unsigned long readdelay)
+{
+    dataDHT22_temperature.minchange=minchange;
+    dataDHT22_temperature.senddelaymax=senddelaymax;
+    dataDHT22_temperature.readdelay=readdelay;
+}
+
+//Also called during setup()
+void Sensor_DHT22::setSettings_Humidity(float minchange, unsigned long senddelaymax, unsigned long readdelay)
+{
+    dataDHT22_humidity.minchange=minchange;
+    dataDHT22_humidity.senddelaymax=senddelaymax;
+    dataDHT22_humidity.readdelay=readdelay;
+}
+
+//Called during setup
+void Sensor_DHT22::advertise(HomieNode& p_sensorNode)
+{
+    sensorNode = &p_sensorNode;
+    #ifndef SENSOR_BMP180
+      sensorNode->advertise("temperature");
+    #else
+      sensorNode->advertise("temperature_dht");
+    #endif
+    sensorNode->advertise("humidity");
+}
+
+void Sensor_DHT22::loop()
+{
+    loop_DHT22_temperature();
+    loop_DHT22_humidity();
+}
+
+
+void Sensor_DHT22::loop_DHT22_temperature()
+{
+  sensordata &d=dataDHT22_temperature;
+  bool _changed=false;  
+
+  if (millis() >= (d.lastreadtime+d.readdelay)) {
+    d.value = dht->readTemperature();
+    if (fabs(d.lastsentvalue-d.value)>=d.minchange){
+      _changed=true;
+    }
+    d.lastreadtime=millis();
+  }
+
+  if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
+    Serial.print("Sending DHT22_temperature. reason=");
+    if (_changed) Serial.println("change"); else Serial.println("time");
+
+    if (!(isnan(d.value) == 1)){ //success
+      
+      #ifndef SENSOR_BMP180
+        sensorNode->setProperty("temperature").send(String(d.value));
+        Homie.getLogger() << "temperature " << ": " << d.vlaue << endl;
+      #else
+        sensorNode->setProperty("temperature_dht").send(String(d.value));
+        Homie.getLogger() << "temperature_dht " << ": " << d.value << endl;
+      #endif
+      
+      d.lastsentvalue=d.value;
+    }
+
+    d.lastsent=millis();
+  }
+}
+
+void Sensor_DHT22::loop_DHT22_humidity()
+{
+  sensordata &d=dataDHT22_humidity;
+  bool _changed=false;
+  
+
+  if (millis() >= (d.lastreadtime+d.readdelay)) {
+    d.value = dht->readHumidity();
+    if (fabs(d.lastsentvalue-d.value)>=d.minchange){
+      _changed=true;
+    }
+    d.lastreadtime=millis();
+  }
+
+  if (_changed || millis() >= (d.lastsent+d.senddelaymax)) {
+    Serial.print("Sending DHT22_humidity. reason=");
+    if (_changed) Serial.println("change"); else Serial.println("time");
+
+    if (!(isnan(d.value) == 1)){ //success
+      Homie.getLogger() << "humidity " << ": " << d.value << endl;
+      sensorNode->setProperty("humidity").send(String(d.value));
+      d.lastsentvalue=d.value;
+    }
+    d.lastsent=millis();
+  }
+}

src/sensordata.h

@@ -0,0 +1,11 @@
+
+struct sensordata
+{
+  unsigned long lastreadtime=0;
+  unsigned long readdelay=1000*10; //polling delay
+  float minchange=0; //send new value if difference to last sent value is greater than this
+  float lastsentvalue=0;
+  float value=0;
+  unsigned long lastsent=0;
+  unsigned long senddelaymax=1000*60*5; //maximum time until current value is send
+};