modified ID12RFID library to allow for tx pin setting

Fork of ID12RFID by Simon Ford

Revision:
2:280ef169667c
Parent:
1:f04afa911cf5
--- a/ID12RFID.cpp	Tue Nov 23 17:17:15 2010 +0000
+++ b/ID12RFID.cpp	Wed Aug 27 18:51:48 2014 +0000
@@ -24,8 +24,8 @@
 
 #include "mbed.h"
 
-ID12RFID::ID12RFID(PinName rx)
-        : _rfid(NC, rx) {
+ID12RFID::ID12RFID(PinName tx,PinName rx)
+        : _rfid(tx, rx) {
 }
 
 int ID12RFID::readable() {