Thread: Solving the mystery behind the stoplight sensor
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Old 09-27-12 | 04:38 PM
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cyccommute
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Originally Posted by ChrisM2097
http://www.wikihow.com/Trigger-Green-Traffic-Lights

This article recommends neodymium magnets. I've got a bunch of hard drive magnets laying around, and several stubborn traffic signals on my commute. I'll zip-tie a couple of the magnets to the lowest parts of the chain stays, and see how well it works.
Same problem as above. Even a powerful magnet like a drive magnet is still too weak to have any effect. Position your wheel directly over the sensor wires and, if you have a choice over the middle wires of the figure 8 type sensor.
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