Added gitignore file. Added sensor selection to DHT config for DHT11/… (#152)

* Added gitignore file. Added sensor selection to DHT config for DHT11/21/22 sensors. DHT22 used a default to ensure backwards compatibility.

* Removed quotes to fix compliation error.

* Moved local ignored file from .gitignore to .git/info/exclude per request. Removed .gitignore.

ZsensorDHT.ino

@@ -31,7 +31,7 @@
 #include <DHT.h>
 #include <DHT_U.h>
 
-DHT dht(DHT_RECEIVER_PIN,DHT22); 
+DHT dht(DHT_RECEIVER_PIN,DHT_SENSOR_TYPE); 
 
 //Time used to wait for an interval before resending temp and hum
 unsigned long timedht = 0;

config_DHT.h

@@ -30,6 +30,10 @@
 #define TEMP1  "home/DHTtoMQTT/dht1/temp"
 #define dht_always true // if false when the current value for temp or hum is the same as previous one don't send it by MQTT
 #define TimeBetweenReadingDHT 30000 // time between 2 DHT readings
+/*-------------DHT SENSOR TYPE-------------*/
+//#define DHT_SENSOR_TYPE DHT11 //uncomment for DHT11 Sensor
+//#define DHT_SENSOR_TYPE DHT21 //uncomment for DHT21 Sensor
+#define DHT_SENSOR_TYPE DHT22 //uncomment for DHT22 Sensor (default for backwards compatibility)
 /*-------------------PIN DEFINITIONS----------------------*/
 #if defined(ESP8266) || defined(ESP32)
   #define DHT_RECEIVER_PIN D1 // you can put D5 if you don't use HCSR501 sensor and the RFM69