Doug Conn wrote:
> Yeah, I noticed that, too. I was wondering "what can you do with 20ma ?" I
> guess it's made for tripping an opt-ioslated switch or driving a transistor.
It's actually quite a strange little product that doesn't have a lot of
practical uses. It only uses "half" of a servo channel (it only trips
in one direction) and you can't set the trip point to suit your
purposes. Moreover, it requires you to add other electronic components
to do anything useful with it. I can't imagine anyone using it as an
input to a micro-processor, because a little bit of code will do the
same thing and much, much more. Basically, if you already have the
electronic skills, the product is too limiting and if you don't have the
electronic skills, the product can't solve your problem by itself.
With just a little more work, they could have created a bi-directional
R/C switch with dual opto-couplers, which would have been much more
useful and which wouldn't increase the cost much at all.
Frank P.
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