fix I2C case where using different pins would not work with libs calling begin internally

John Doe · John Doe · commit 80d5508b73d1 · 2015-06-20T21:57:09.000+03:00
if you call Wire.begin(new_sda, new_scl) and your library calls
internally Wire.begin() this will overwrite the SDA,SCL pins to the
default ones
diff --git a/libraries/Wire/Wire.cpp b/libraries/Wire/Wire.cpp
@@ -55,6 +55,8 @@ TwoWire::TwoWire(){}
 // Public Methods //////////////////////////////////////////////////////////////
 
 void TwoWire::begin(int sda, int scl){
+  default_sda_pin = sda;
+  default_scl_pin = scl;
   twi_init(sda, scl);
   flush();
 }

Original file line number	Diff line number	Diff line change
`@@ -55,6 +55,8 @@ TwoWire::TwoWire(){}`
`55`	`55`	`// Public Methods //////////////////////////////////////////////////////////////`
`56`	`56`
`57`	`57`	`void TwoWire::begin(int sda, int scl){`
	`58`	`+ default_sda_pin = sda;`
	`59`	`+ default_scl_pin = scl;`
`58`	`60`	`twi_init(sda, scl);`
`59`	`61`	`flush();`
`60`	`62`	`}`