OLED and button support, some refactoring.

platformio.ini

@@ -971,6 +971,10 @@ build_flags = ${nrf52840_base.build_flags}
   -D LORA_TX_POWER=22
   -D SX126X_CURRENT_LIMIT=130
   -D SX126X_RX_BOOSTED_GAIN=1
+  -D PIN_USER_BTN=6
+lib_deps=
+  ${nrf52840_base.lib_deps}
+	adafruit/Adafruit SSD1306 @ ^2.5.13
 
 [env:Faketec_Repeater]
 extends = faketec
@@ -1035,6 +1039,7 @@ lib_deps =
 extends = faketec
 build_flags =
   ${faketec.build_flags} 
+  -D DISPLAY_CLASS=SSD1306Display
   -D MAX_CONTACTS=100
   -D MAX_GROUP_CHANNELS=8
   -D BLE_PIN_CODE=123456
@@ -1043,7 +1048,7 @@ build_flags =
   -D ENABLE_PRIVATE_KEY_IMPORT=1
 ;  -D MESH_PACKET_LOGGING=1
 ;  -D MESH_DEBUG=1
-build_src_filter = ${faketec.build_src_filter} +<helpers/nrf52/SerialBLEInterface.cpp> +<../examples/companion_radio/main.cpp>
+build_src_filter = ${faketec.build_src_filter} +<helpers/nrf52/SerialBLEInterface.cpp> +<../examples/companion_radio> +<helpers/ui/*.cpp>
 lib_deps =
   ${faketec.lib_deps}
   adafruit/RTClib @ ^2.1.3