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GeneralRe: LOL Pin
GeekforChrist11-Jan-13 14:57
memberGeekforChrist11-Jan-13 14:57 
GeneralRe: LOL Pin
Brisingr Aerowing11-Jan-13 14:59
memberBrisingr Aerowing11-Jan-13 14:59 
GeneralRe: LOL Pin
AspDotNetDev12-Jan-13 15:41
protectorAspDotNetDev12-Jan-13 15:41 
GeneralNuget [modified] Pin
Brisingr Aerowing11-Jan-13 14:46
memberBrisingr Aerowing11-Jan-13 14:46 
GeneralRe: Nuget Pin
Ranjan.D11-Jan-13 15:04
memberRanjan.D11-Jan-13 15:04 
GeneralToday I embarked... Pin
CDP180211-Jan-13 14:27
memberCDP180211-Jan-13 14:27 
GeneralRe: Today I embarked... Pin
Brisingr Aerowing11-Jan-13 15:26
memberBrisingr Aerowing11-Jan-13 15:26 
GeneralRe: Today I embarked... Pin
Roger Wright11-Jan-13 18:50
memberRoger Wright11-Jan-13 18:50 
CDP1802 wrote:
there used to be ICs to scan and encode a 4 x 4 keyboard matrix,

Don't they make diodes and SN74LS154 4-to-16 de-multiplexors anymore? I seem to recall that we used diode (1N914 or 1N4148) OR arrangements on the keyswitches to encode a 4x4 array into 4 bits, then the '154 to expand to one of 16 outputs. We didn't need no stinkin' scanners, though a switch debounce circuit certainly came in handy.

Now that you have it working, have you thought of any practical use for it?
Will Rogers never met me.

GeneralRe: Today I embarked... Pin
CDP180212-Jan-13 2:20
memberCDP180212-Jan-13 2:20 
GeneralWhat Linux is good for ? Pin
BillWoodruff11-Jan-13 14:22
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GeneralRe: What Linux is good for ? Pin
Brisingr Aerowing11-Jan-13 14:37
memberBrisingr Aerowing11-Jan-13 14:37 
GeneralRe: What Linux is good for ? Pin
PIEBALDconsult11-Jan-13 15:15
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GeneralA praise to the crowd! Pin
Manfred R. Bihy11-Jan-13 13:17
memberManfred R. Bihy11-Jan-13 13:17 
GeneralRe: A praise to the crowd! Pin
Garth J Lancaster11-Jan-13 13:50
memberGarth J Lancaster11-Jan-13 13:50 
GeneralRe: A praise to the crowd! Pin
Manfred R. Bihy11-Jan-13 13:52
memberManfred R. Bihy11-Jan-13 13:52 
GeneralRe: A praise to the crowd! Pin
Garth J Lancaster11-Jan-13 14:10
memberGarth J Lancaster11-Jan-13 14:10 
GeneralRe: A praise to the crowd! Pin
lewax0011-Jan-13 14:00
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GeneralRe: A praise to the crowd! Pin
Garth J Lancaster11-Jan-13 14:12
memberGarth J Lancaster11-Jan-13 14:12 
GeneralRe: A praise to the crowd! Pin
Manfred R. Bihy11-Jan-13 14:01
memberManfred R. Bihy11-Jan-13 14:01 
GeneralWTE??? Pin
gavindon11-Jan-13 12:30
membergavindon11-Jan-13 12:30 
GeneralRe: WTE??? Pin
Dave Kreskowiak11-Jan-13 12:36
mvpDave Kreskowiak11-Jan-13 12:36 
GeneralRe: WTE??? Pin
CDP180211-Jan-13 12:46
memberCDP180211-Jan-13 12:46 
GeneralRe: WTE??? Pin
Garth J Lancaster11-Jan-13 12:47
memberGarth J Lancaster11-Jan-13 12:47 
GeneralRe: WTE??? Pin
Mycroft Holmes11-Jan-13 12:57
memberMycroft Holmes11-Jan-13 12:57 
GeneralRe: WTE??? Pin
Garth J Lancaster11-Jan-13 13:14
memberGarth J Lancaster11-Jan-13 13:14 

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