From 80d5508b73d15693f1dd20dfc7bfb8462f611e44 Mon Sep 17 00:00:00 2001
From: John Doe <ficeto@Hristos-Mac-mini-2.local>
Date: Sat, 20 Jun 2015 21:57:09 +0300
Subject: [PATCH] fix I2C case where using different pins would not work with
 libs calling begin internally

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
---
 libraries/Wire/Wire.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libraries/Wire/Wire.cpp b/libraries/Wire/Wire.cpp
index 03901583c..759159203 100644
--- 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();
 }