build fix for R1 Neo repeater

added missing declarations for user_btn and NullDisplayDriver

variants/muziworks_r1_neo/platformio.ini

@@ -10,6 +10,7 @@ build_flags = ${nrf52_base.build_flags}
   -D NRF52_POWER_MANAGEMENT
   -D RADIO_CLASS=CustomSX1262
   -D WRAPPER_CLASS=CustomSX1262Wrapper
+  -D DISPLAY_CLASS=NullDisplayDriver
   -D LORA_TX_POWER=22
   -D SX126X_CURRENT_LIMIT=140
   -D SX126X_RX_BOOSTED_GAIN=1

variants/muziworks_r1_neo/target.cpp

@@ -4,12 +4,17 @@
 
 R1NeoBoard board;
 
-DISPLAY_CLASS display;
-
 RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
-
 WRAPPER_CLASS radio_driver(radio, board);
 
+#ifdef DISPLAY_CLASS
+  NullDisplayDriver display;
+#endif
+
+#ifdef PIN_USER_BTN 
+MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
+#endif
+
 VolatileRTCClock fallback_clock;
 AutoDiscoverRTCClock rtc_clock(fallback_clock);