diff --git a/VERSION b/VERSION
index 4bdd32f..2a43146 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.40
+2.42
diff --git a/build b/build
index 070ea3f..7dc074c 100755
--- a/build
+++ b/build
@@ -160,13 +160,13 @@ fi
   $sudo make install
   check_make_ok
 
-  echo
-  echo "wiringPi Daemon"
-  cd ../wiringPiD
-  make -j5
-  check_make_ok
-  $sudo make install
-  check_make_ok
+# echo
+# echo "wiringPi Daemon"
+# cd ../wiringPiD
+# make -j5
+# check_make_ok
+# $sudo make install
+# check_make_ok
 
 # echo
 # echo "Examples"
diff --git a/debian-template/wiringPi/DEBIAN/control b/debian-template/wiringPi/DEBIAN/control
index 75cedfa..73359aa 100644
--- a/debian-template/wiringPi/DEBIAN/control
+++ b/debian-template/wiringPi/DEBIAN/control
@@ -1,5 +1,5 @@
 Package: wiringpi
-Version: 2.40
+Version: 2.42
 Section: libraries
 Priority: optional
 Architecture: armhf
diff --git a/examples/Makefile b/examples/Makefile
index 4725d85..6d87885 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -33,7 +33,7 @@ INCLUDE	= -I/usr/local/include
 CFLAGS	= $(DEBUG) -Wall $(INCLUDE) -Winline -pipe
 
 LDFLAGS	= -L/usr/local/lib
-LDLIBS    = -lwiringPi -lwiringPiDev -lpthread -lm -lcrypt
+LDLIBS    = -lwiringPi -lwiringPiDev -lpthread -lm -lcrypt -lrt
 
 # Should not alter anything below this line
 ###############################################################################
diff --git a/gpio/readall.c b/gpio/readall.c
index aec6de6..18f836f 100644
--- a/gpio/readall.c
+++ b/gpio/readall.c
@@ -299,6 +299,8 @@ static void plus2header (int model)
     printf (" +-----+-----+---------+------+---+--B Plus--+---+------+---------+-----+-----+\n") ;
   else if (model == PI_MODEL_ZERO)
     printf (" +-----+-----+---------+------+---+-Pi Zero--+---+------+---------+-----+-----+\n") ;
+  else if (model == PI_MODEL_ZERO_W)
+    printf (" +-----+-----+---------+------+---+-Pi ZeroW-+---+------+---------+-----+-----+\n") ;
   else if (model == PI_MODEL_2)
     printf (" +-----+-----+---------+------+---+---Pi 2---+---+------+---------+-----+-----+\n") ;
   else if (model == PI_MODEL_3)
@@ -346,7 +348,7 @@ void doReadall (void)
 
   /**/ if ((model == PI_MODEL_A) || (model == PI_MODEL_B))
     abReadall (model, rev) ;
-  else if ((model == PI_MODEL_BP) || (model == PI_MODEL_AP) || (model == PI_MODEL_2) || (model == PI_MODEL_3) || (model == PI_MODEL_ZERO))
+  else if ((model == PI_MODEL_BP) || (model == PI_MODEL_AP) || (model == PI_MODEL_2) || (model == PI_MODEL_3) || (model == PI_MODEL_ZERO) || (model == PI_MODEL_ZERO_W))
     piPlusReadall (model) ;
   else if ((model == PI_MODEL_CM) || (model == PI_MODEL_CM3))
     allReadall () ;
diff --git a/version.h b/version.h
index 2c359b6..b556f91 100644
--- a/version.h
+++ b/version.h
@@ -1,3 +1,3 @@
-#define VERSION "2.40"
+#define VERSION "2.42"
 #define VERSION_MAJOR 2
-#define VERSION_MINOR 40
+#define VERSION_MINOR 42
diff --git a/wiringPi/Makefile b/wiringPi/Makefile
index 0a1283f..e1868b9 100644
--- a/wiringPi/Makefile
+++ b/wiringPi/Makefile
@@ -41,7 +41,7 @@ INCLUDE	= -I.
 DEFS	= -D_GNU_SOURCE
 CFLAGS	= $(DEBUG) $(DEFS) -Wformat=2 -Wall -Wextra -Winline $(INCLUDE) -pipe -fPIC
 
-LIBS    = -lm -lpthread -lrt
+LIBS    = -lm -lpthread -lrt -lcrypt
 
 ###############################################################################
 
diff --git a/wiringPi/rht03.c b/wiringPi/rht03.c
index 9fa5702..1129cfd 100644
--- a/wiringPi/rht03.c
+++ b/wiringPi/rht03.c
@@ -22,22 +22,147 @@
  ***********************************************************************
  */
 
-//#include <sys/types.h>
-//#include <sys/stat.h>
-//#include <fcntl.h>
-
-//#include <unistd.h>
-//#include <stdint.h>
+#include <sys/time.h>
+#include <stdio.h>
 #include <stdio.h>
-//#include <string.h>
 #include <time.h>
-//#include <ctype.h>
 
 #include "wiringPi.h"
-#include "../devLib/maxdetect.h"
-
 #include "rht03.h"
 
+/*
+ * maxDetectLowHighWait:
+ *	Wait for a transition from low to high on the bus
+ *********************************************************************************
+ */
+
+static int maxDetectLowHighWait (const int pin)
+{
+  struct timeval now, timeOut, timeUp ;
+
+// If already high then wait for pin to go low
+
+  gettimeofday (&now, NULL) ;
+  timerclear   (&timeOut) ;
+  timeOut.tv_usec = 1000 ;
+  timeradd     (&now, &timeOut, &timeUp) ;
+
+  while (digitalRead (pin) == HIGH)
+  {
+    gettimeofday (&now, NULL) ;
+    if (timercmp (&now, &timeUp, >))
+      return FALSE ;
+  }
+
+// Wait for it to go HIGH
+
+  gettimeofday (&now, NULL) ;
+  timerclear (&timeOut) ;
+  timeOut.tv_usec = 1000 ;
+  timeradd (&now, &timeOut, &timeUp) ;
+
+  while (digitalRead (pin) == LOW)
+  {
+    gettimeofday (&now, NULL) ;
+    if (timercmp (&now, &timeUp, >))
+      return FALSE ;
+  }
+
+  return TRUE ;
+}
+
+
+/*
+ * maxDetectClockByte:
+ *	Read in a single byte from the MaxDetect bus
+ *********************************************************************************
+ */
+
+static unsigned int maxDetectClockByte (const int pin)
+{
+  unsigned int byte = 0 ;
+  int bit ;
+
+  for (bit = 0 ; bit < 8 ; ++bit)
+  {
+    if (!maxDetectLowHighWait (pin))
+      return 0 ;
+
+// bit starting now - we need to time it.
+
+    delayMicroseconds (30) ;
+    byte <<= 1 ;
+    if (digitalRead (pin) == HIGH)	// It's a 1
+      byte |= 1 ;
+  }
+
+  return byte ;
+}
+
+
+/*
+ * maxDetectRead:
+ *	Read in and return the 4 data bytes from the MaxDetect sensor.
+ *	Return TRUE/FALSE depending on the checksum validity
+ *********************************************************************************
+ */
+
+static int maxDetectRead (const int pin, unsigned char buffer [4])
+{
+  int i ;
+  unsigned int checksum ;
+  unsigned char localBuf [5] ;
+  struct timeval now, then, took ;
+
+// See how long we took
+
+  gettimeofday (&then, NULL) ;
+
+// Wake up the RHT03 by pulling the data line low, then high
+//	Low for 10mS, high for 40uS.
+
+  pinMode      (pin, OUTPUT) ;
+  digitalWrite (pin, 0) ; delay             (10) ;
+  digitalWrite (pin, 1) ; delayMicroseconds (40) ;
+  pinMode      (pin, INPUT) ;
+
+// Now wait for sensor to pull pin low
+
+  if (!maxDetectLowHighWait (pin))
+    return FALSE ;
+
+// and read in 5 bytes (40 bits)
+
+  for (i = 0 ; i < 5 ; ++i)
+    localBuf [i] = maxDetectClockByte (pin) ;
+
+  checksum = 0 ;
+  for (i = 0 ; i < 4 ; ++i)
+  {
+    buffer [i] = localBuf [i] ;
+    checksum += localBuf [i] ;
+  }
+  checksum &= 0xFF ;
+
+// See how long we took
+  
+  gettimeofday (&now, NULL) ;
+  timersub (&now, &then, &took) ;
+
+// Total time to do this should be:
+//	10mS + 40µS - reset
+//	+ 80µS + 80µS - sensor doing its low -> high thing
+//	+ 40 * (50µS + 27µS (0) or 70µS (1) )
+//	= 15010µS
+// so if we take more than that, we've had a scheduling interruption and the
+// reading is probably bogus.
+
+  if ((took.tv_sec != 0) || (took.tv_usec > 16000))
+    return FALSE ;
+
+  return checksum == localBuf [4] ;
+}
+
 
 /*
  * myReadRHT03:
@@ -76,6 +201,7 @@ static int myReadRHT03 (const int pin, int *temp, int *rh)
   return TRUE ;
 }
 
+
 /*
  * myAnalogRead:
  *********************************************************************************
diff --git a/wiringPi/wiringPi.c b/wiringPi/wiringPi.c
index e018100..a8f5963 100644
--- a/wiringPi/wiringPi.c
+++ b/wiringPi/wiringPi.c
@@ -222,7 +222,7 @@ const char *piModelNames [16] =
   "Pi Zero",	// 09
   "CM3",	// 10
   "Unknown11",	// 11
-  "Unknown12",	// 12
+  "Pi Zero-W",	// 12
   "Unknown13",	// 13
   "Unknown14",	// 14
   "Unknown15",	// 15
diff --git a/wiringPi/wiringPi.h b/wiringPi/wiringPi.h
index 0788bf2..f601f13 100644
--- a/wiringPi/wiringPi.h
+++ b/wiringPi/wiringPi.h
@@ -98,6 +98,7 @@
 #define	PI_MODEL_3		 8
 #define	PI_MODEL_ZERO		 9
 #define	PI_MODEL_CM3		10
+#define	PI_MODEL_ZERO_W		12
 
 #define	PI_VERSION_1		0
 #define	PI_VERSION_1_1		1
diff --git a/wiringPiD/wiringpid b/wiringPiD/wiringpid
index 529e286..b21232e 100755
Binary files a/wiringPiD/wiringpid and b/wiringPiD/wiringpid differ