Added Stream::find(char)

hardware/arduino/cores/arduino/Stream.cpp

@@ -72,6 +72,19 @@ void Stream::setTimeout(unsigned long timeout)  // sets the maximum number of mi
   _timeout = timeout;
 }
 
+// find returns true if the target character is found
+bool Stream::find(char target)
+{
+    int c = 0;
+    do {
+        c = timedRead();
+        if ((char)c == target)
+            return true;
+    } while (c >= 0);
+    // if c is -1, it means a timeout occured
+    return false;
+}
+
  // find returns true if the target string is found
 bool  Stream::find(char *target)
 {

hardware/arduino/cores/arduino/Stream.h

@@ -54,6 +54,9 @@ class Stream : public Print
 
   void setTimeout(unsigned long timeout);  // sets maximum milliseconds to wait for stream data, default is 1 second
 
+  bool find(char target);   // reads data from the stream until the target character is found
+  // returns true if target character is found, false if timed out (see setTimeout)
+
   bool find(char *target);   // reads data from the stream until the target string is found
   // returns true if target string is found, false if timed out (see setTimeout)