diff --git a/mySetup.cpp_example.txt b/mySetup.cpp_example.txt
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+//  Sample mySetup.cpp file.
+//
+// To use this file, copy it to mySetup.cpp and uncomment the directives and/or
+// edit them to satisfy your requirements.  
+
+// Note that if the file has a .cpp extension it WILL be compiled into the build
+// and the mySetup() function WILL be invoked.
+//
+// To prevent this, temporarily rename it to mySetup.txt or similar.
+//
+
+#include "IODevice.h"
+#include "Turnouts.h"
+#include "Sensors.h"
+#include "IO_HCSR04.h"
+
+
+// The #if directive prevent compile errors for Uno and Nano by excluding the 
+//  HAL directives from the build.
+#if !defined(IO_NO_HAL)
+
+
+// Examples of statically defined HAL directives (alternative to the create() call).
+// These have to be outside of the mySetup() function.
+
+
+// The following directive defines a PCA9685 PWM Servo driver module.
+// The parameters are: 
+//   First Vpin=100
+//   Number of VPINs=16 (numbered 100-115)
+//   I2C address of module=0x40
+
+//PCA9685 pwmModule1(100, 16, 0x40);
+
+
+// The following directive defines an MCP23017 16-port I2C GPIO Extender module.
+// The parameters are: 
+//   First Vpin=164
+//   Number of VPINs=16 (numbered 164-179)
+//   I2C address of module=0x20
+
+//MCP23017 gpioModule2(164, 16, 0x20);
+
+
+// Alternative form, which allows the INT pin of the module to request a scan
+// by pulling Arduino pin 40 to ground.  Means that the I2C isn't being polled
+// all the time, only when a change takes place. Multiple modules' INT pins
+// may be connected to the same Arduino pin.
+
+//MCP23017 gpioModule2(164, 16, 0x20, 40);
+
+
+// The following directive defines an MCP23008 8-port I2C GPIO Extender module.
+// The parameters are: 
+//   First Vpin=300
+//   Number of VPINs=8 (numbered 300-307)
+//   I2C address of module=0x22
+
+//MCP23017 gpioModule3(300, 8, 0x22);
+
+
+// The following directive defines a PCF8574 8-port I2C GPIO Extender module.
+// The parameters are: 
+//   First Vpin=200
+//   Number of VPINs=8 (numbered 200-207)
+//   I2C address of module=0x23
+
+//PCF8574 gpioModule4(200, 8, 0x23);
+
+
+// Alternative form using INT pin (see above)
+
+//PCF8574 gpioModule4(200, 8, 0x23, 40);
+
+
+// The following directive defines an HCSR04 ultrasonic module.
+// The parameters are: 
+//   Vpin=2000 (only one VPIN per directive)
+//   Number of VPINs=1
+//   Arduino pin connected to TRIG=30
+//   Arduino pin connected to ECHO=31
+//   Minimum trigger range=20cm (VPIN goes to 1 when <20cm)
+//   Maximum trigger range=25cm (VPIN goes to 0 when >25cm)
+// Note: Multiple devices can be configured by using a different ECHO pin
+// for each one.  The TRIG pin can be shared between multiple devices.
+// Be aware that the 'ping' of one device may be received by another
+// device and position them accordingly!
+
+//HCSR04 sonarModule1(2000, 30, 31, 20, 25);
+//HCSR04 sonarModule2(2001, 30, 32, 20, 25);
+
+
+// The function mySetup() is invoked from CS if it exists within the build.
+// It is called just before mysetup.h is executed, so things set up within here can be
+// referenced by commands in mySetup.h.
+
+void mySetup() {
+
+  // Alternative way of creating MCP23017, which has to be within the mySetup() function
+  // The other devices can also be created in this way.  The parameter lists for the
+  // create() function are identical to the parameter lists for the declarations.
+
+  //MCP23017::create(180, 16, 0x21);
+
+
+  // Creating a Turnout
+  // Parameters: same as <T> command for Servo turnouts
+  // ID and VPIN are 100, sonar moves between positions 102 and 490 with slow profile.
+  // Profile may be Instant, Fast, Medium, Slow or Bounce.
+
+  //ServoTurnout::create(100, 100, 490, 102, PCA9685::Slow);
+
+
+  // DCC Accessory turnout
+  // Parameters: same as <T> command for DCC Accessory turnouts
+  //  ID=3000
+  //  Decoder address=23
+  //  Decoder subaddress = 1
+
+  //DCCTurnout::create(3000, 23, 1);
+
+
+  // Creating a Sensor
+  // Parameters: As for the <S> command,
+  //  id = 164,
+  //  Vpin = 164 (configured above as pin 0 of an MCP23017)
+  //  Pullup enable = 1 (enabled)
+
+  //Sensor::create(164, 164, 1);
+
+
+  // Way of creating lots of identical sensors in a range
+
+  //for (int i=165; i<180; i++) 
+  //  Sensor::create(i, i, 1);
+
+}
+
+#endif