Actually, you can easily get into a situation where 2 lights will visible at the same time. However, the odds are slim that you will only be able to see one (Depending on initial robot placement).
To assemble the light box, you should use 4 cathodes in pairs of 2 and 2 transformers. Thus the 8 cathodes that shipped in the KOP could be used to build 2 targets through that configuration. Someone above me complained about that halving the brightness, but I don't think that that should be a problem. One of these cathodes is pretty darn bright.
The "official" assembly uses a whoping 8 cathodes! I don't see why they would need that much. I designed my cam code only using 2.
See this link:
http://www2.usfirst.org/2007comp/Dra..._TARGET_R1.pdf
But APPARENTLY, some nincompoop at FIRST only gave us 1 box of 8 and were supposed to give us 2. So as of right now you can build only 1 regulation light box and wait for the new 8 tubes to come in the mail.
Quote:
Each team should have received two of the target light boxes (16 bulbs, 8 transformers),
but only one was shipped with each kit. We are in the process of shipping the additional
target light kit to each team. FIRST apologizes for the error.
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