Reply to "Design of a $10-20 DCS-TIU Port Tester Tool?"

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Stan, I was thinking that simply adding a resistor divider based on a 5V reference, you could have a second LED with no adjustment pot. As long as you assume the +5V is within around 5%, it would probably be accurate enough, and it sure makes calibration a moot point. Of course, adding another 123 would give you the four LED's I started with. With a PCB, it would be pretty easy to add the extra components, no hand wiring involved.

I think I see feature creep rearing it's head!

7/19/185:23 PM

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