Optical Flow with Arduino Nano

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A simple Optical Flow Sensor is implemented with the Arduino Nano and ten CdS Photoresistors.
All the signals are read in the analog input A0.
Only two Cds are connected to VCC and GND respectively in each data capture.
Digital pins are used as VCC, GND and as High Impedance (as input).

Based in the work of Geoffrey L. Barrows, Centeye, Inc.
Simple optical flow sensor using 18 CdS cells.

Music by Eirik Trøen Brunvoll
River Flows in You - House/Electro Remix
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Thanks for the video and details on your project. I am working on a Burning Man art car project. It is a set of tiki masks with eyes that look left and right. They are seeking a totem being carried about 15 feet away. I'm wondering if the photoresistors could be in a circle looking outwards to identify the heading to the totem? Did Geoffrey get his beer? :-) -Frank

starlingwatch
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awesome ... .:) we were making something similar but to photograph things.. we did not wanted high resolution image and also not too low resolution. we had no plays of making our own si dies for what we wanted to do so I suggested an Array of photodiodes :)

ShirishJadav