Ethernet MQTT client (experimental)

src/hal/olimexpoeiso.h

@@ -10,16 +10,16 @@
 // enable only if you want to store a local paxcount table on the device
 #define HAS_SDCARD  2      // this board has an SD-card-reader/writer
 
+// enable only if you want to send paxcount via ethernet port to mqtt server
+#define HAS_MQTT 1  // use MQTT on ethernet interface
+
 #define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature
 
 //#define BAT_MEASURE_ADC ADC1_GPIO35_CHANNEL // battery probe GPIO pin -> ADC1_CHANNEL_7
+//#define BAT_VOLTAGE_DIVIDER 2 // voltage divider 470k/470k on board
 #define BAT_MEASURE_ADC ADC1_GPIO39_CHANNEL // external power probe GPIO pin
 #define BAT_VOLTAGE_DIVIDER 2.1277f // voltage divider 47k/442k on board
 
-#define EXT_POWER_SW GPIO_NUM_12 // switches PoE power, Vext control 0 = off / 1 = on
-#define EXT_POWER_ON    1
-//#define EXT_POWER_OFF   1
-
 #define HAS_BUTTON KEY_BUILTIN // on board button
 #define HAS_LED NOT_A_PIN // no on board LED