/diy/ - Do It Yourself

Anonymous Fri Feb 3 15:48:35 2017 No.1125556 [View]
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>>1125527
1. Get some old barcode wand requiring you to swipe the barcode.
2. Get the signal out from the photodetector amp or the photodetector itself.

Or make your own wand based on a reflection sensor. There are special components for barcode readers like
http://www.ebay.com/itm/1PC-HBCS-1100-Encapsulation-High-Resolution-Optical-Reflective-Sensor-/272156482039
If that's too expensive, you could try using an ordinary photodiode or phototransistor and a laser pointer for illumination.

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/diy/ - Do It Yourself

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