diff --git a/SPIFlash.cpp b/SPIFlash.cpp
index e250c17..9d043b8 100644
--- a/SPIFlash.cpp
+++ b/SPIFlash.cpp
@@ -50,6 +50,15 @@ SPIFlash::SPIFlash(uint8_t slaveSelectPin, uint16_t jedecID) {
   _jedecID = jedecID;
 }
 
+/// Empty constructor to permit late pin and JedecID assignment.
+SPIFlash::SPIFlash() {}
+
+/// Set the pin and JedecID. (Only needed if the empty constructor was used.)
+void SPIFlash::begin(uint8_t slaveSelectPin, uint16_t jedecID) {
+  _slaveSelectPin = slaveSelectPin;
+  _jedecID = jedecID;
+}
+
 /// Select the flash chip
 void SPIFlash::select() {
   //save current SPI settings
@@ -290,4 +299,4 @@ void SPIFlash::wakeup() {
 /// cleanup
 void SPIFlash::end() {
   SPI.end();
-}
\ No newline at end of file
+}
diff --git a/SPIFlash.h b/SPIFlash.h
index 7364a8f..0052ae0 100644
--- a/SPIFlash.h
+++ b/SPIFlash.h
@@ -91,6 +91,8 @@ class SPIFlash {
 public:
   static uint8_t UNIQUEID[8];
   SPIFlash(uint8_t slaveSelectPin, uint16_t jedecID=0);
+  SPIFlash();
+  void begin(uint8_t slaveSelectPin, uint16_t jedecID=0);
   boolean initialize();
   void command(uint8_t cmd, boolean isWrite=false);
   uint8_t readStatus();
@@ -120,4 +122,4 @@ class SPIFlash {
 #endif
 };
 
-#endif
\ No newline at end of file
+#endif
diff --git a/keywords.txt b/keywords.txt
index 652da98..124bca6 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -1,5 +1,6 @@
 SPIFlash	KEYWORD1
 initialize	KEYWORD2
+begin	KEYWORD2
 command	KEYWORD2
 readStatus	KEYWORD2
 readByte	KEYWORD2
@@ -15,4 +16,4 @@ readUniqueId	KEYWORD2
 UNIQUEID	KEYWORD2
 sleep	KEYWORD2
 wakeup	KEYWORD2
-end	KEYWORD2
\ No newline at end of file
+end	KEYWORD2