1 files changed, 5 insertions, 2 deletions
diff --git a/cores/arduino/Print.cpp b/cores/arduino/Print.cpp
index e087313..53961ec 100755
--- a/cores/arduino/Print.cpp
+++ b/cores/arduino/Print.cpp
@@ -53,8 +53,11 @@ size_t Print::print(const __FlashStringHelper *ifsh)
 
 size_t Print::print(const String &s)
 {
-  write((const uint8_t*)s.c_str(), s.length());
-  return s.length();
+  size_t n = 0;
+  for (uint16_t i = 0; i < s.length(); i++) {
+    n += write(s[i]);
+  }
+  return n;
 }
 
 size_t Print::print(const char str[])