diff --git a/Sming/Wiring/WString.h b/Sming/Wiring/WString.h
index f9e26b68b8..00364b068f 100644
--- a/Sming/Wiring/WString.h
+++ b/Sming/Wiring/WString.h
@@ -215,7 +215,11 @@ class String
     {
       getBytes((unsigned char *)buf, bufsize, index);
     }
-    const char * c_str() const { return buffer; }
+    const char* c_str() const { return buffer; }
+    char* begin() { return buffer; }
+    char* end() { return buffer + length(); }
+    const char* begin() const { return c_str(); }
+    const char* end() const { return c_str() + length(); }
   
     // search
     int IRAM_ATTR indexOf(char ch) const;