| Author | Message | | | eric | | Posted: Thu Oct 12, 2006 10:32 pm Post subject: Hexadecimal keypad for PCs | | | | Site Admin Joined: 01 Jan 1970 Posts: 311 | Many computers and microcontrollers are programmed
in hexadecimal, which represents numerical values
using the numerals 0 through 9 plus the letters A through
F. Entering the numerals is quite easy with the numeric
keypad of a PC keyboard, but the letters are scattered
over the entire alphanumeric portion of the keyboard.
This article describes the construction of a keypad with
20 buttons, which includes all the necessary characters
as well as several control characters.
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