Some of those "optical rules" put decimal numbers out serially. What he would need at worst is a UART, shift register, and digital comparator. If he's lucky, he might find a product with a programmable-distance digital output. (Manufacturers: do you copy?)
Jerry
Jerry Avins wrote in news: snipped-for-privacy@rcn.net:
Unless he can accomodate that in his control scheme, he would also need a microcontroller to throw at the problem (well, then he wouldn't need any other hardware except the sensor itself), a development system for that environment, and someone to program the whole deal.
Even if his control environment can directly support the UART, etc, you're probably talking two days, at least, of implementation and testing.
It would be worth it to just find the right opto-device, and it looks like omron makes clear bottle sensors that the OP was pointed to earlier in the thread. Even if it runs $1K, and it problably runs almost two orders of magnitude less, its still cheaper than a serial approach.
SCott
"Bob Watkinson" wrote in news:d4m3f8$9r6$ snipped-for-privacy@newsg3.svr.pol.co.uk:
Have you looked at the OSXF Banner sensors? These are fiber optic, emit/receive. They are NOT retro-reflective. You can set them as to whether they are light/dark via DIP switch. Contact your local Turk/Banner rep.
Scott Seidman wrote in news:Xns964E7C1F4A196scottseidmanmindspri@130.133.1.4:
Not really. Both Keyence and Turk/Banner make laser sensors that output a discrete I/O. All the electronics are within the sensors. You simply 'teach' them the proper range with on-sensor buttons. Really simple to implement, really simple to set-up and use.
Bob Watkinson
I know its a little bit late in the discussion but Im interested in the problem how did you solve it?
thanks a lot
juan
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