fix ble pin

Author: jquatier

variants/heltec_wireless_paper/platformio.ini

@@ -40,7 +40,7 @@ build_flags =
   -D MAX_CONTACTS=100
   -D MAX_GROUP_CHANNELS=8
   -D DISPLAY_CLASS=E213Display
-  -D BLE_PIN_CODE=0  ; dynamic, random PIN
+  -D BLE_PIN_CODE=123456   ; dynamic, random PIN
   -D BLE_DEBUG_LOGGING=1
   -D OFFLINE_QUEUE_SIZE=256
 build_src_filter = ${Heltec_Wireless_Paper_base.build_src_filter}