clear the display at start of displayBeacon
clear the display at start of displayBeacon

starksm64/NativeRaspberryPiBeaconParser,starksm64/NativeRaspberryPiBeaconParser,starksm64/NativeRaspberryPiBeaconParser,starksm64/NativeRaspberryPiBeaconParser,starksm64/NativeRaspberryPiBeaconParser