Revision as of 01:25, 25 February 2014 edit EP111 (talk \| contribs) Autopatrolled, Extended confirmed users 395,270 edits →See also: moved cat. ← Previous edit		Revision as of 02:49, 25 April 2014 edit undo DavidCary (talk \| contribs) Extended confirmed users 7,223 edits copy sentence from seven-segment display#Implementations, and reference from multiplexed display#Character-oriented displays Next edit →
Line 22: in many [[pinball]] machines.<ref> [http://webpages.charter.net/coinopcauldron/swarticle.html "Understanding the Switch Matrix"] </ref> Often in pocket calculators the [[multiplexed display#Character-oriented displays \| multiplexed digit drive lines]] would be used to scan the keyboard as well, providing further savings.<ref> Stan D’Souza. [http://ww1.microchip.com/downloads/en/appnotes/00529e.pdf "Microchip AN529: Multiplexing LED Drive and a 4x4 Keypad Sampling"]. 1997. </ref>

Keyboard matrix circuit: Difference between revisions