October 02, 2012

Make an optical flow sensor using an Arduino

 As a possible form of altitude sensor or other detection device, Geoffrey Barrows has created an interesting analogue edge detector using an Arduino and a lot of light-dependent resistors. As light changes across the LDRs, the signals from each are measured and using an algorithm programmed into the Arduino a flow-direction can be determined. In the following video the concept and project are explained in more detail:

A fascinating use for light-dependent resistors. For more information visit Geoffrey's project page. And for more, we're on twitter and Google+, so follow us for news and product updates as well.

Looking for a light sensor? Although it can be tempting to use a light-dependent resistor, they're fragile and can give varying results. Instead - consider our LIGHT: light sensor module based around the digital TEMT6000 sensor. It gives consistent and reliable readings, and is incredibly easy to use with our Getting Started guide. For more information and to order, click here!

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