Added self check for MCP I/O expanders

Author: gogi640

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_Battery_Voltage_And_Temperature/Inkplate_Battery_Voltage_And_Temperature.ino

@@ -30,7 +30,6 @@ Inkplate display(INKPLATE_1BIT); // Create an object on Inkplate library and als
 // You can easily check if your Inkplate has second MCP by turning it over and 
 // if there is missing chip near place where "MCP23017-2" is written, but if there is
 // chip soldered, you don't have to uncomment line and use external MCP I/O expander
-//#define ONE_MCP_MODE
 
 void setup()
 {

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_Bluetooth_Peripheral_Mode_Example/Inkplate_Bluetooth_Peripheral_Mode_Example.ino

@@ -32,7 +32,6 @@ char commandBuffer[BUFFER_SIZE + 1];
 // You can easily check if your Inkplate has second MCP by turning it over and 
 // if there is missing chip near place where "MCP23017-2" is written, but if there is
 // chip soldered, you don't have to uncomment line and use external MCP I/O expander
-//#define ONE_MCP_MODE
 
 void setup() // Initialize everything
 {

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_EEPROM_Usage/Inkplate_EEPROM_Usage.ino

@@ -33,7 +33,6 @@ Inkplate display(INKPLATE_1BIT); // Create object on Inkplate library and set li
 // You can easily check if your Inkplate has second MCP by turning it over and 
 // if there is missing chip near place where "MCP23017-2" is written, but if there is
 // chip soldered, you don't have to uncomment line and use external MCP I/O expander
-//#define ONE_MCP_MODE
 
 void setup()
 {

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_EasyC/Inkplate_EasyC.ino

@@ -38,7 +38,6 @@ int n = 0; // Variable that keep track on how many times screen has been partial
 // You can easily check if your Inkplate has second MCP by turning it over and 
 // if there is missing chip near place where "MCP23017-2" is written, but if there is
 // chip soldered, you don't have to uncomment line and use external MCP I/O expander
-//#define ONE_MCP_MODE
 
 void setup()
 {

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_Faster_Display/Inkplate_Faster_Display.ino

@@ -24,7 +24,6 @@ Inkplate display(INKPLATE_1BIT);
 // You can easily check if your Inkplate has second MCP by turning it over and 
 // if there is missing chip near place where "MCP23017-2" is written, but if there is
 // chip soldered, you don't have to uncomment line and use external MCP I/O expander
-//#define ONE_MCP_MODE
 
 void setup()
 {

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_Low_Power/Inkplate_Low_Power.ino

@@ -42,7 +42,6 @@ Inkplate display(INKPLATE_3BIT); // Create an object on Inkplate library and als
 // You can easily check if your Inkplate has second MCP by turning it over and 
 // if there is missing chip near place where "MCP23017-2" is written, but if there is
 // chip soldered, you don't have to uncomment line and use external MCP I/O expander
-//#define ONE_MCP_MODE
 
 void setup()
 {

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_MCP23017_Expander/Inkplate_MCP23017_Expander.ino

@@ -41,7 +41,6 @@ Inkplate display(INKPLATE_1BIT); // Create an object on Inkplate library and als
 // You can easily check if your Inkplate has second MCP by turning it over and 
 // if there is missing chip near place where "MCP23017-2" is written, but if there is
 // chip soldered, you don't have to uncomment line and use external MCP I/O expander
-//#define ONE_MCP_MODE
 
 void setup()
 {

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_Partial_Update_With_Deep_Sleep/Inkplate_Partial_Update_With_Deep_Sleep.ino

@@ -45,7 +45,6 @@ RTC_DATA_ATTR float decimal = PI;
 // You can easily check if your Inkplate has second MCP by turning it over and 
 // if there is missing chip near place where "MCP23017-2" is written, but if there is
 // chip soldered, you don't have to uncomment line and use external MCP I/O expander
-//#define ONE_MCP_MODE
 
 void setup()
 {

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_RTC_Alarm_Deep_Sleep_Example/Inkplate_RTC_Alarm_Deep_Sleep_Example.ino

@@ -29,7 +29,6 @@ Inkplate display(INKPLATE_1BIT); // Create an object on Inkplate library and als
 // You can easily check if your Inkplate has second MCP by turning it over and 
 // if there is missing chip near place where "MCP23017-2" is written, but if there is
 // chip soldered, you don't have to uncomment line and use external MCP I/O expander
-//#define ONE_MCP_MODE
 
 void setup()
 {

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_RTC_Alarm_Example/Inkplate_RTC_Alarm_Example.ino

@@ -46,7 +46,6 @@ uint8_t alarmDay = 11;
 // You can easily check if your Inkplate has second MCP by turning it over and 
 // if there is missing chip near place where "MCP23017-2" is written, but if there is
 // chip soldered, you don't have to uncomment line and use external MCP I/O expander
-//#define ONE_MCP_MODE
 
 void setup()
 {