The LED keypad shows the digital characters as shown in Table 1 Table 1. Digital character mapping table Characters LED Display Characters LED Display Characters LED Display Characters LED Display 0 9 I R 1 A J S 2 B K T 3 C L U 4 D M 1 V 5 E N W 1 6 F O X No indication 7 G P Y 8 H Q Z No indication 1 Shown across two digits.
