diff --git a/IODevice.cpp b/IODevice.cpp
index d49eedc..81bea0e 100644
--- a/IODevice.cpp
+++ b/IODevice.cpp
@@ -42,7 +42,7 @@
 // and PCA9685.
 void IODevice::begin() {
   // Initialise the IO subsystem
-  ArduinoPins::create(2, NUM_DIGITAL_PINS-3);  // Reserve pins for direct access
+  ArduinoPins::create(2, NUM_DIGITAL_PINS-2);  // Reserve pins for direct access
   // Predefine two PCA9685 modules 0x40-0x41
   // Allocates 32 pins 100-131
   PCA9685::create(100, 16, 0x40);
diff --git a/IODevice.h b/IODevice.h
index ca16285..6717c8b 100644
--- a/IODevice.h
+++ b/IODevice.h
@@ -344,8 +344,8 @@ private:
 
 /////////////////////////////////////////////////////////////////////////////////////////////////////
 
-// #include "IO_MCP23008.h"
-// #include "IO_MCP23017.h"
-// #include "IO_PCF8574.h"
+#include "IO_MCP23008.h"
+#include "IO_MCP23017.h"
+#include "IO_PCF8574.h"
 
 #endif // iodevice_h
\ No newline at end of file
diff --git a/IO_PCA9685.cpp b/IO_PCA9685.cpp
index a6bde29..dd2a607 100644
--- a/IO_PCA9685.cpp
+++ b/IO_PCA9685.cpp
@@ -129,7 +129,7 @@ void PCA9685::_write(VPIN vpin, int value) {
     s->numSteps = profile==Fast ? 10 : 
                   profile==Medium ? 20 : 
                   profile==Slow ? 40 : 
-                  profile==Bounce ? sizeof(_bounceProfile) : 
+                  profile==Bounce ? sizeof(_bounceProfile)-1 : 
                   1;
     s->state = value;
     s->stepNumber = 0;
@@ -163,7 +163,7 @@ void PCA9685::_writeAnalogue(VPIN vpin, int value, int profile) {
   s->numSteps = profile==Fast ? 10 : 
                 profile==Medium ? 20 : 
                 profile==Slow ? 40 : 
-                profile==Bounce ? sizeof(_bounceProfile) : 
+                profile==Bounce ? sizeof(_bounceProfile)-1 : 
                 1;
   s->stepNumber = 0;
   s->toPosition = min(value, 4095);