[TriEmbed] Raspberry Pi & Detection Sensor

[John Vaughters]

For thos on Trilug, this will be repeat information. 

Check out this project  http://opencv.org/ and the website below. Basically it is an OpenSource Vision system with simple web cam. I have not personally used it, but the video is quite instructive. I am very impressed.

Here is a video of a water cannon that identifies and shoots squirrels but
not birds, shared previously on this list
https://www.youtube.com/watch?v=QPgqfnKG_T4 (Preview) 



________________________________
 From: Grawburg <grawburg at myglnc.com>
To: Triangle Embedded Devices <TriEmbed at triembed.org> 
Sent: Monday, October 7, 2013 1:51 PM
Subject: [TriEmbed] Raspberry Pi & Detection Sensor
 

I'm working on a project to demonstrate how a basic conveyor system can separate
different size objects by using some HO train cars and electric turn-out switches.

The intention is to have a detector, either a visible light photocell arrangment using
LEDs or an infrared LED emitter/receiver.  The turn-out switch will be isolated from
the Pi with a relay.

I know the photocell will give me a basic ON-OFF (high-low), but what does the IR
LED give?  I will have a timer loop in my Python code that instructs the switch to remain
in the diverted position for x-seconds and then return to the default position.


Brian Grawburg
Wilson





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