working version of song control with initialization from sd card

Dependencies:   MFRC522 NRF2401P SDFileSystem SPI_TFT_ILI9341 TFT_fonts mbed

Fork of Song_Control by Malcolm McCulloch

Revision:
1:c2232b1eaf31
Parent:
0:c0f34d23943d
Child:
2:d1eae91343a9
--- a/locker.cpp	Sat Jan 23 00:14:37 2016 +0000
+++ b/locker.cpp	Sun Jan 24 16:15:53 2016 +0000
@@ -12,7 +12,7 @@
 // tx nRF2401
 
 long long addrHub=0xBBBBBBBBBB;
-int channel = 76;
+extern int channel;
 
 // Initializaton
 /**