Feature/add shtc3 (#843)

* Add SHTC3

* remove adc config

main/config_SHTC3.h

@@ -0,0 +1,52 @@
+/*  
+  OpenMQTTGateway  - ESP8266 or Arduino program for home automation 
+
+   Act as a wifi or ethernet gateway between your 433mhz/infrared IR signal  and a MQTT broker 
+   Send and receiving command by MQTT
+ 
+   This files enables to set your parameter for the SHTC311/22 sensor
+  
+    Copyright: (c)Florian ROBERT
+  
+    This file is part of OpenMQTTGateway.
+    
+    OpenMQTTGateway is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenMQTTGateway is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#ifndef config_SHTC3_h
+#define config_SHTC3_h
+
+extern void setupSHTC3();
+extern void SHTC3toMQTT();
+
+/*----------------------------USER PARAMETERS-----------------------------*/
+/*-------------DEFINE YOUR MQTT PARAMETERS BELOW----------------*/
+#define SHTC3TOPIC              "/SHTC3toMQTT/shtc31"
+#define shtc3_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 TimeBetweenReadingSHTC3 30000 // time between 2 SHTC3 readings
+/*-------------SHTC3 SENSOR TYPE-------------*/
+//#define SHTC3_SENSOR_TYPE SHTC311 //uncomment for SHTC311 Sensor
+//#define SHTC3_SENSOR_TYPE SHTC321 //uncomment for SHTC321 Sensor
+#define SHTC3_SENSOR_TYPE SHTC322 //uncomment for SHTC322 Sensor (default for backwards compatibility)
+/*-------------------PIN DEFINITIONS----------------------*/
+#ifndef SHTC3_RECEIVER_GPIO
+#  if defined(ESP8266)
+#    define SHTC3_RECEIVER_GPIO 5 //5 = D1 you can put 14 = D5 if you don't use HCSR501 sensor and the RFM69
+#  elif defined(ESP32)
+#    define SHTC3_RECEIVER_GPIO 16
+#  else
+#    define SHTC3_RECEIVER_GPIO 8
+#  endif
+#endif
+
+#endif