Affordable Electronic Circuit Design for Model Railroads
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May 8, 2013: Do you need only two occupancy detectors in one location? We now have an add-on kit to our Quad Occupancy Detector Kit that provides the circuit board and additional connectors needed to build two cards each having two occupancy detectors. The price for this add-on kit is $5.29 (making the total price of two Dual Occupancy Detectors $25.28 - quantity discounts are available). Email us for information about this add-on kit.
April 13, 2013: Application note about debouncing the output of the Quad Occupancy Detector for driving hardware circuits has been added to the online documentation on the Occupancy Detector page.
April 8, 2013: We are in the process of sourcing 8 amp bridge rectifiers and heat sinks in order to offer the best price on the high current version of our Quad Block Occupancy detector.
At this time, we have a source that would allow charging $44.99 for assembled units and $24.99 for kits, but we expect to do a little better than this.
Send us an email if you would like more information on the high current version.
April 1, 2013: Application note about detecting non-moving or non-powered trains on a DC layout has been added to the online documentation on the Occupancy Detector page.
March 18, 2013: VERSION 4 Quad Occupancy Detectors are now available.
Quantity discounts remain on purchase of 3 or more items (full units, kits, or circuit boards). See this page for more information.
CROR Signal Driver:
March 31, 2013: An article on the design of the CROR Signal Driver is now available. See this page for more information. RETAILERS CARRYING OUR PRODUCTS:
Version 4 Quad Block Occupancy Detector available in both kit and completed unit