Home > Exploring Ideas > Optical Flow Sensor with Arduino Nano

Optical Flow Sensor with Arduino Nano

The Arduino Nano and Ten CdS Photoresistors are combined to realize an Optical Flow Sensor.

Pa05

Nine diferential measurements are obtained from every consecutive pair of photoresistors (edge detectors).

Digital pins are used as outputs  to produce +5Volts and Ground, and as inputs to produce High impedance).

Pa04

All the signals are captured in the analog input A0.

Pa29Pa35

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

http://embeddedeye.com/profiles/blogs/make-an-optical-flow-sensor-using-an-arduino-cds-cells-and-a-shoe

The getImage() function was modified to  capture data.

Search for “Optical Flow with Aduino NANO”  in   pastebin

 

The assembly procedure and test results can be seen in Youtube:

Aditional Tests made with the “Optic Flow Sensor”:

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Categories: Exploring Ideas
  1. ROBERTO CARLOS
    July 29, 2015 at 12:12 AM

    VERY GOOD. CONGRATULATIONS.
    YOU CAN SEND YOUR CODE ARDUINO.
    THANKS

    ROBERTOCARLOSALVARENGA@HOTMAIL.COM

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