Dnia 26-09-2011 o 08:02:52 Don Veino <[email protected]> napisał(a):
You can use DS2408 it has 8 IO ports. There are also smaller chips but DS2408 is easier to solder. http://datasheets.maxim-ic.com/en/ds/DS2408.pdf There's a schematic on page 30. It's parasite powered but if you got separate power just instead of the diode bat54 connect +5V The you can use some kind of switch that would be touched by the door when they close. You can also use reed switch and put a magnet on the door. There is no physical contact so this switch would be more durable. http://en.wikipedia.org/wiki/Reed_switch http://datasheets.maxim-ic.com/en/ds/DS2413.pdf This also has a schematic on page 1 (left lower corner) -- p4trykx ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
