Better Arduino compatability: Changed to order of the Wire.begin and …

…Wire.pins parameters to

match the [Arduino order](samples/DS3232RTC_NTP_Setter/app/application.cpp).

Related to SmingHub#1179 and SmingHub#1061.

Warning: this is a backward incompatible change.

Sming/SmingCore/Wire.cpp

@@ -54,20 +54,20 @@ TwoWire::TwoWire(){}
 
 // Public Methods //////////////////////////////////////////////////////////////
 
-void TwoWire::begin(int scl, int sda){
+void TwoWire::begin(int sda, int scl){
   default_sda_pin = sda;
   default_scl_pin = scl;
   twi_init(sda, scl);
   flush();
 }
 
-void TwoWire::pins(int scl, int sda){
+void TwoWire::pins(int sda, int scl){
   default_sda_pin = sda;
   default_scl_pin = scl;
 }
 
 void TwoWire::begin(void){
-  begin(default_scl_pin, default_sda_pin);
+  begin(default_sda_pin, default_scl_pin);
 }
 
 void TwoWire::begin(uint8_t address){

Sming/SmingCore/Wire.h

@@ -48,8 +48,8 @@ class TwoWire : public Stream
     static void onReceiveService(uint8_t*, int);
   public:
     TwoWire();
-    void begin(int scl, int sda);
-    void pins(int scl, int sda);
+    void begin(int sda, int scl);
+    void pins(int sda, int scl);
     void begin();
     void begin(uint8_t);
     void begin(int);

samples/Accelerometer_MMA7455/app/application.cpp

@@ -29,7 +29,7 @@ void init()
 	Serial.println("Starting...");
 
 	// You can change pins:
-	//Wire.pins(12, 14); // SCL, SDA
+	//Wire.pins(14, 12); // SDA, SCL 
 	Wire.begin();
 
 	// Select the Working Mode

samples/Arducam/app/application.cpp

@@ -75,7 +75,7 @@ void initCam() {
 	Serial.printf("ArduCAM init!");
 
 	// initialize I2C
-	Wire.pins(CAM_SCL, CAM_SDA);
+	Wire.pins(CAM_SDA, CAM_SCL);
 	Wire.begin();
 
 	//Check if the camera module type is OV2640

samples/Basic_ScannerI2C/app/application.cpp

@@ -81,10 +81,10 @@ void init()
 
 	WDT.enable(false); // First (but not the best) option: fully disable watch dog timer
 
-	// Default I2C pins (SCL:0 , SDA: 2)
+	// Default I2C pins (SDA: 2, SCL:0)
 
 	// You can change pins:
-	//Wire.pins(12, 14); // SCL, SDA
+	//Wire.pins(14, 12); // SDA, SCL 
 
 	Wire.begin();
 	procTimer.initializeMs(3000, scanBus).start();

samples/DS3232RTC_NTP_Setter/app/application.cpp

@@ -41,7 +41,7 @@ void init()
 {
 	Serial.begin(SERIAL_BAUD_RATE);
 	Serial.println("Sming DSRTC_NTP_SETTER started!");
-	Wire.pins(0, 2); //Change to your SCL - 0,SDA - 2 GPIO pin number
+	Wire.pins(2, 0); //Change to your SDA - 2, SCL - 0 GPIO pin number
 	Wire.begin();
 
 	// Station - WiFi client

samples/Humidity_AM2321/app/application.cpp

@@ -31,7 +31,7 @@ void init()
 	delay(500);
 
 	// Apply I2C pins
-	Wire.pins(SCL, SDA);
+	Wire.pins(SDA, SCL);
 	Wire.begin();
 
 	am2321.begin(); // REQUIRED. Call it after choosing I2C pins.

samples/Humidity_SI7021/app/application.cpp

@@ -84,7 +84,7 @@ void init()
 	Serial.begin(SERIAL_BAUD_RATE); // 115200 by default
 	Serial.systemDebugOutput(true); // Allow debug output to serial
 	Serial.print("Start I2c");
-	Wire.pins(I2C_SCL, I2C_SDA); // SCL, SDA
+	Wire.pins(I2C_SDA, I2C_SCL); // SDA, SCL 
 	Wire.begin();
 	procTimer_ht.initializeMs(10000, si_read_ht).start();
 	procTimer_olt.initializeMs(15000, si_read_olt).start();

samples/MeteoControl_mqtt/app/application.cpp

@@ -14,7 +14,7 @@ void init()
 {
 	Serial.begin(SERIAL_BAUD_RATE); // 115200 by default
 
-	Wire.pins(5, 4); // SCL, SDA
+	Wire.pins(4, 5); // SDA, SCL 
 	Wire.begin();
 
 // initialization config

samples/PortExpander_MCP23017/app/application.cpp

@@ -18,7 +18,7 @@ void init()
 	Serial.begin(115200);
 
 	// You can select ESP I2C pins here:
-	//Wire.pins(4, 5); // SCL, SDA
+	//Wire.pins(5, 4); // SDA, SCL
 
 	mcp.begin(0); // 0 - for default mcp address, possible values: 0..7