Reply to "HC-SR04 ultrasonic sensor for outdoor layout block detection"

stan2004OGR Forum Member

Well guys, let's not count them chickens before they hatch! I'm thinking it would be useful to get prototypes in the hands of some interested parties who would be willing to actually mess with it on their layout. Like those late-night TV ads for some medical device, I believe it would have to be one of those "at little or no cost to you" deals though Medicare would not be required.

All the occupancy detection schemes have their plusses and minuses. I think part of the fun with alternative technologies like ultrasonics is the adventure of finding new applications. I think the precise distance discrimination/sensing capability might have as of yet undiscovered applications in running out trains!

I remain baffled as to how the HC-SR04 module on eBay is 78 cents (free shipping from Asia) and includes a tracking number. eek

2/10/227:03 PM

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