<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:12pt"><div><span style="color: rgb(69, 69, 69); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 12px;">For thos on Trilug, this will be repeat information. </span></div><div style="color: rgb(69, 69, 69); font-size: 12px; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: transparent; font-style: normal;"><span style="color: rgb(69, 69, 69); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 12px;"><br></span></div><div style="color: rgb(69, 69, 69); font-size: 12px; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: transparent; font-style: normal;"><span style="color: rgb(69, 69, 69); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 12px;">Check out this project </span><a href="http://opencv.org/"
target="_blank" style="color: rgb(40, 98, 197); outline: 0px; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 12px;">http://opencv.org/</a> 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.<br style="color: rgb(69, 69, 69); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 12px;"><br style="color: rgb(69, 69, 69); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 12px;"><span style="color: rgb(69, 69, 69); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 12px;">Here is a video of a water cannon that identifies and shoots squirrels but</span><br style="color: rgb(69, 69, 69); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 12px;"><span style="color: rgb(69, 69, 69); font-family: 'Helvetica Neue', Helvetica,
Arial, sans-serif; font-size: 12px;">not birds, shared previously on this list</span><br style="color: rgb(69, 69, 69); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 12px;"><span style="color: rgb(69, 69, 69); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 12px;"><span class="enhancr-links"><a href="https://www.youtube.com/watch?v=QPgqfnKG_T4" target="_blank" style="color: rgb(40, 98, 197); outline: 0px;">https://www.youtube.com/watch?v=QPgqfnKG_T4</a> <span class="enhancr-show-preview" style="margin-left: 3px; font-size: 11px; color: rgb(119, 119, 119); font-family: 'Helvetica Neue', HelveticaNeue, helvetica, arial, sans-serif;">(<a style="text-decoration: none; color: rgb(119, 119, 119); outline: 0px; cursor: pointer;" href="">Preview</a>) </span></span></span><span></span></div><div><br></div> <div style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"> <div
style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font size="2" face="Arial"> <b><span style="font-weight:bold;">From:</span></b> Grawburg <grawburg@myglnc.com><br> <b><span style="font-weight: bold;">To:</span></b> Triangle Embedded Devices <TriEmbed@triembed.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Monday, October 7, 2013 1:51 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [TriEmbed] Raspberry Pi & Detection Sensor<br> </font> </div> <div class="y_msg_container"><br>I'm working on a project to demonstrate how a basic conveyor system can separate<br>different size objects by using some HO train cars and electric turn-out switches.<br><br>The intention is to have a detector, either a visible light photocell arrangment using<br>LEDs or an infrared LED emitter/receiver. The turn-out switch will be isolated from<br>the Pi with a
relay.<br><br>I know the photocell will give me a basic ON-OFF (high-low), but what does the IR<br>LED give? I will have a timer loop in my Python code that instructs the switch to remain<br>in the diverted position for x-seconds and then return to the default position.<br><br><br>Brian Grawburg<br>Wilson<br><br><br><br><br><br>_______________________________________________<br>Triangle, NC Embedded Computing mailing list<br><a ymailto="mailto:TriEmbed@triembed.org" href="mailto:TriEmbed@triembed.org">TriEmbed@triembed.org</a><br><a href="http://mail.triembed.org/mailman/listinfo/triembed_triembed.org" target="_blank">http://mail.triembed.org/mailman/listinfo/triembed_triembed.org</a><br>TriEmbed web site: <a href="http://triembed.org/" target="_blank">http://TriEmbed.org</a><br><br><br></div> </div> </div> </div></body></html>