diff --git a/stringhelpers.h b/stringhelpers.h
new file mode 100644
--- /dev/null
+++ b/stringhelpers.h
@@ -0,0 +1,7 @@
+#ifndef STRINGHELPERS_H 
+#define STRINGHELPERS_H
+
+char* itoa(int16_t i, char b[]);
+char* itoa_fp(int16_t i, uint8_t frac, char b[]);
+
+#endif