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In December, a friend approached me and asked if I could create a visual effect for him. The requirements are to flash a strobe light, activate only when someone is in front of the effect for a couple of seconds, and wait for the person to walk away before it can be activated again.

Here’s the effect in action.

Parts List:
Geeetech Infrared proximity switch module compatible with Arduino/Iduino
Waterproof Superbright 100cm White SMD Led Strip Light Lamp with USB Cable Port 5v
SainSmart Nano v3.0 Compatible with Arduino

See the code after the break.
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