-static const prog_char cmd0[] = vt100_up_arr;
-static const prog_char cmd1[] = vt100_down_arr;
-static const prog_char cmd2[] = vt100_right_arr;
-static const prog_char cmd3[] = vt100_left_arr;
-static const prog_char cmd4[] = "\177";
-static const prog_char cmd5[] = "\n";
-static const prog_char cmd6[] = "\001";
-static const prog_char cmd7[] = "\005";
-static const prog_char cmd8[] = "\013";
-static const prog_char cmd9[] = "\031";
-static const prog_char cmd10[] = "\003";
-static const prog_char cmd11[] = "\006";
-static const prog_char cmd12[] = "\002";
-static const prog_char cmd13[] = vt100_suppr;
-static const prog_char cmd14[] = vt100_tab;
-static const prog_char cmd15[] = "\004";
-static const prog_char cmd16[] = "\014";
-static const prog_char cmd17[] = "\r";
-static const prog_char cmd18[] = "\033\177";
-static const prog_char cmd19[] = vt100_word_left;
-static const prog_char cmd20[] = vt100_word_right;
-static const prog_char cmd21[] = "?";
-
-const prog_char * vt100_commands[] PROGMEM = {
+static const char PROGMEM cmd0[] = vt100_up_arr;
+static const char PROGMEM cmd1[] = vt100_down_arr;
+static const char PROGMEM cmd2[] = vt100_right_arr;
+static const char PROGMEM cmd3[] = vt100_left_arr;
+static const char PROGMEM cmd4[] = "\177";
+static const char PROGMEM cmd5[] = "\n";
+static const char PROGMEM cmd6[] = "\001";
+static const char PROGMEM cmd7[] = "\005";
+static const char PROGMEM cmd8[] = "\013";
+static const char PROGMEM cmd9[] = "\031";
+static const char PROGMEM cmd10[] = "\003";
+static const char PROGMEM cmd11[] = "\006";
+static const char PROGMEM cmd12[] = "\002";
+static const char PROGMEM cmd13[] = vt100_suppr;
+static const char PROGMEM cmd14[] = vt100_tab;
+static const char PROGMEM cmd15[] = "\004";
+static const char PROGMEM cmd16[] = "\014";
+static const char PROGMEM cmd17[] = "\r";
+static const char PROGMEM cmd18[] = "\033\177";
+static const char PROGMEM cmd19[] = vt100_word_left;
+static const char PROGMEM cmd20[] = vt100_word_right;
+static const char PROGMEM cmd21[] = "?";
+
+const char * const PROGMEM vt100_commands[] = {