Set chip select pin HIGH; only select on need

Set chip select pin to HIGH at first to avoid issues when using multiple devices on the same SPI bus.
ljos · Jan 30, 2014 · a08867a · a08867a
1 parent 9d7705a
commit a08867a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/MFRC522.cpp b/MFRC522.cpp
@@ -29,7 +29,7 @@
 MFRC522::MFRC522(int sad, int reset) {
   _sad = sad;
   pinMode(_sad, OUTPUT);         // Set digital as OUTPUT to connect it to the RFID /ENABLE pin
-  digitalWrite(_sad, LOW);
+  digitalWrite(_sad, HIGH);
 
 
   _reset = reset;