http://www.flatline.net/journal/2009/10/30/arduino-boolean-logic-and-the-magic-of-vintage-logic-chips/ self-deprecating yet still self-promotional witty comment Fri, 22 Jul 2011 21:32:50 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://www.flatline.net/journal/2009/10/30/arduino-boolean-logic-and-the-magic-of-vintage-logic-chips/comment-page-1/#comment-17070 adam Sat, 31 Oct 2009 04:20:46 +0000 http://www.flatline.net/journal/2009/10/30/arduino-boolean-logic-and-the-magic-of-vintage-logic-chips/#comment-17070 Why bother with logic chips in your example of switches? For the 'or' example just wire the switches in parallel. If any one of them is closed you'll bypass the pullup/pulldown resistor and get the new state. For the 'and' example wrire the switches in series. Each one of them will need to be pressed to change the logic state. Why bother with logic chips in your example of switches? For the ‘or’ example just wire the switches in parallel. If any one of them is closed you’ll bypass the pullup/pulldown resistor and get the new state. For the ‘and’ example wrire the switches in series. Each one of them will need to be pressed to change the logic state.

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