added esp32 flag for NTP from DHCP server

arduinoIDE_esp32_boards/boards.local.txt

@@ -31,10 +31,10 @@ neOSensor.build.partitions=default
 # DISABLE_ADC_CAL: flag to disable esp32 ADC advanced calibration
 # DISABLE_AP_PASSWD: flag to disable access point password (i.e free to connect to)
 # [apr.21] MQTT specs sets through API (buffer_size, timeout ...)
-neOSensor.build.defines=-DNEOSENSOR_BOARD -DDISABLE_SSL -DDISABLE_AP_PASSWD
-#neOSensor.build.defines=-DNEOSENSOR_BOARD -DMQTT_KEEPALIVE=60 -DMQTT_SOCKET_TIMEOUT=60 -DMQTT_MAX_PACKET_SIZE=256 -DDISABLE_SSL -DDISABLE_AP_PASSWD
-#neOSensor.build.defines=-DNEOSENSOR_BOARD -DMQTT_KEEPALIVE=60 -DMQTT_SOCKET_TIMEOUT=60 -DMQTT_MAX_PACKET_SIZE=256 -DLED=2 -DDISABLE_SSL -DDISABLE_AP_PASSWD
-#neOSensor.build.defines=-DNEOSENSOR_BOARD -DMQTT_KEEPALIVE=60 -DMQTT_SOCKET_TIMEOUT=60 -DMQTT_MAX_PACKET_SIZE=256
+neOSensor.build.defines=-DNEOSENSOR_BOARD -DDISABLE_SSL -DDISABLE_AP_PASSWD -DLWIP_DHCP_GET_NTP_SRV=1
+#neOSensor.build.defines=-DNEOSENSOR_BOARD -DMQTT_KEEPALIVE=60 -DMQTT_SOCKET_TIMEOUT=60 -DMQTT_MAX_PACKET_SIZE=256 -DDISABLE_SSL -DDISABLE_AP_PASSWD -DLWIP_DHCP_GET_NTP_SRV=1
+#neOSensor.build.defines=-DNEOSENSOR_BOARD -DMQTT_KEEPALIVE=60 -DMQTT_SOCKET_TIMEOUT=60 -DMQTT_MAX_PACKET_SIZE=256 -DLED=2 -DDISABLE_SSL -DDISABLE_AP_PASSWD -DLWIP_DHCP_GET_NTP_SRV=1
+#neOSensor.build.defines=-DNEOSENSOR_BOARD -DMQTT_KEEPALIVE=60 -DMQTT_SOCKET_TIMEOUT=60 -DMQTT_MAX_PACKET_SIZE=256 -DLWIP_DHCP_GET_NTP_SRV=1
 
 # upload speed
 neOSensor.menu.UploadSpeed.921600=921600

neosensor/libraries/boards/neosensor.h

@@ -107,6 +107,7 @@
   #define SDA               14      // GPIO14  
   #define SCL               12      // GPIO12
 #elif defined(ESP32)
+  //#define I2C_FREQ          50000   // default is 100KHz
   #define SDA               21
   #define SCL               22
 #endif

neosensor/neosensor.ino

@@ -18,11 +18,8 @@
  * 
  * ---
  * TODO:
- * - add sntp_cb once available for ESP32
  * - check sntp!=IPADDR_ANY works with ESP8266 (line 342)
- * - check SYS_LED is working (add -DSYS_LED=2)
  * - remove DISABLE_SSL compilation flag
- * - AutoConnect lib vs WiFiManager --> have a look to https://github.com/Hieromon/AutoConnect
  * - MQTT client --> have a look to https://github.com/xluthi/pulse_counter_esp8266
  * - test OTA feature
  * - as the number of modules is increasing, implement a list of modules in the setup()