C4 Display 96 Character Set Hex Display Hex Display Hex Display Hex Display 00 10 20 Space 30 0 01 11 21 ! 31 1 02 12 22 " 32 2 03 13 23 # 33 3 04 14 24 $ 34 4 05 15 25 % 35 5 06 16 26 & 36 6 07 17 27 ' 37 7 08 18 28 ( 38 8 09 19 29 ) 39 9 0a 1a 2a * 3a : 0b 1b 2b + 3b ; 0c 1c 2c , 3c < 0d 1d 2d - 3d = 0e 1e 2e . 3e > 0f 1f 2f / 3f ? 40 @ 50 P 60 ` 70 p 41 A 51 Q 61 a 71 q 42 B 52 R 62 b 72 r 43 C 53 S 63 c 73 s 44 D 54 T 64 d 74 t 45 E 55 U 65 e 75 u 46 F 56 V 66 f 76 v 47 G 57 W 67 g 77 w 48 H 58 X 68 h 78 x 49 I 59 Y 69 i 79 y 4a J 5a Z 6a j 7a z 4b K 5b [ 6b k 7b { 4c L 5c \ 6c l 7c | 4d M 5d ] 6d m 7d } 4e N 5e ^ 6e n 7e → 4f O 5f _ 6f o 7f ← Hex 00 - 0f seems that this is reserved for horizontal level metering? Symbols like this ░ Hex 10 - 1f has no effect and shows nothing