-static const prog_char help1[] = "UINT8";
-static const prog_char help2[] = "UINT16";
-static const prog_char help3[] = "UINT32";
-static const prog_char help4[] = "INT8";
-static const prog_char help5[] = "INT16";
-static const prog_char help6[] = "INT32";
+static const char PROGMEM help1[] = "UINT8";
+static const char PROGMEM help2[] = "UINT16";
+static const char PROGMEM help3[] = "UINT32";
+static const char PROGMEM help4[] = "UINT64";
+static const char PROGMEM help5[] = "INT8";
+static const char PROGMEM help6[] = "INT16";
+static const char PROGMEM help7[] = "INT32";
+static const char PROGMEM help8[] = "INT64";