Added Heltec ESP32 Lora board (#865)

platformio.ini

@@ -50,6 +50,7 @@ extra_configs =
 ;default_envs = esp32-m5atom
 ;default_envs = ttgo-lora32-v1
 ;default_envs = ttgo-t-beam
+;default_envs = heltec_wifi_lora_32
 ;default_envs = nodemcuv2-rf
 ;default_envs = nodemcuv2-rf-cc1101
 ;default_envs = nodemcuv2-somfy-cc1101
@@ -526,7 +527,21 @@ build_flags =
   '-DADC_DIVIDER=2'
   # Reading battery level every minutes should be more than enought
   '-DTimeBetweenReadingADC=60000' 
-
+
+[env:heltec_wifi_lora_32]
+platform = ${com.esp32_platform}
+board = heltec_wifi_lora_32
+
+lib_deps =
+  ${com-esp.lib_deps}
+  ${libraries.lora}
+build_flags =
+  ${com-esp.build_flags}
+  '-DZgatewayLORA="LORA"'
+  '-DGateway_Name="OpenMQTTGateway_ESP32_LORA"'
+  '-DLED_RECEIVE=25'
+  '-DTimeLedON=0.1'
+  '-DLED_RECEIVE_ON=1' 
 
 [env:nodemcuv2-all-test]
 platform = ${com.esp8266_platform}