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6Instructables132,037Views13CommentsLondonJoined April 17th, 2007
Science museum exhibit design and fabrication manager, stagehand, ballet shoe maker, theatre production manager, project manager and art director of the Beijing Aquarium rainforest exhibit, film extra, architecture tour guide and urban planning researcher.

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  • Another Arduino Laser Tripwire

    I haven't looked at this since I posted it so am a bit rusty. It may be code is now deprecated and you need to find updated commands on the forums OR the cell is not calibrated as in Step 3. You need a clear differential in readings so the code knows what is high and what is low. If you copied the readings from my code they will be different for your laser and cell so won't work. Also I put my photocell down a short piece of plastic pipe to keep the cell in the shade which helped a lot.

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