blueroomelectronics
Well-Known Member
Just so I've got it clear, you don't want any to light till all three are within range?
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Just so I've got it clear, you don't want any to light till all three are within range?
Yup, exactly. If any two are brought together, nothing happens, but if all three are, then the LED's light.
The thing I am trying to figure out is whether the MCU is sending out "Data" letting the other MCU know that two other devices are in range.
in general, [1] uses more power, has more "parts" but it is simpler to make and probably can be done uC free ... the [2] solution requires uC and some sophisticated programming but it should consume less power (as it will have only one receiver and not two)
Check Audioguru's design in the Electronic Projects forum, it gives constructional details, and is far better than the arroncake design.
What I would like to do is, have 3 separate LED lights which would only light up if all three are close to each other (within 2 or less feet), yet when you take all three outside of that radius, they turn off.
I don't know about the other forums you post at but this is the best one I've seen.Ha, I'm on like 5 forums....so I'm confused.
A very long thread: but has anyone asked why you want to do this? It may help to get an idea from outside the box.