<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><a href="http://antipastohw.pbworks.com/w/page/26594512/AMBI Light Sensor" class="">http://antipastohw.pbworks.com/w/page/26594512/AMBI%20Light%20Sensor</a><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jun 22, 2018, at 10:50 AM, James Mazer <<a href="mailto:james.mazer@montana.edu" class="">james.mazer@montana.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi Daniel,<div class=""><br class=""></div><div class="">We use these around the lab: <a href="https://www.amazon.com/dp/B00IM8OD14/ref=pe_2640190_232748420_TE_item" class="">https://www.amazon.com/dp/B00IM8OD14/ref=pe_2640190_232748420_TE_item</a>.<div class=""><div class=""><br class=""></div><div class="">It's a small photodiode sensor board with an amp and some minimal logic. Puts out both analog (continuous) signal and thresholded level (on-board pot). Hard to beat for ~$5 assembled... You can cut the traces powering the LEDs if they cause problems with experiment, but useful for debugging..</div><div class=""><br class=""></div><div class="">best,</div><div class="">/jamie</div><div class=""><br class=""></div><div class=""><br class=""></div></div></div></div><br class=""><div class="gmail_quote"><div dir="ltr" class="">On Wed, Jun 20, 2018 at 10:50 AM Daniel Seshu Joyce <<a href="mailto:dsjoyce@stanford.edu" class="">dsjoyce@stanford.edu</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div id="m_8058958853790225200divtagdefaultwrapper" dir="ltr" style="font-size: 12pt; font-family: Calibri, Helvetica, sans-serif, EmojiFont, 'Apple Color Emoji', 'Segoe UI Emoji', NotoColorEmoji, 'Segoe UI Symbol', 'Android Emoji', EmojiSymbols;" class=""><div style="margin-top: 0px; margin-bottom: 0px;" class="">Hi all,</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class="">
</div><div style="margin-top: 0px; margin-bottom: 0px;" class="">I am looking to build a simple light sensor to detect transitions between stimuli of different intensities. This will be recorded by an EEG channel and used to segment the EEG data based on the <span style="font-family:Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size:16px" class="">timing
of the</span> stimulus transitions. I would be grateful if you could point me in the direction of any resources/schematics that you have used with success - <span style="font-size:12pt" class="">I recall there may have been some discussion on this topic on cvnet/visionlist some
years ago, and maybe even a tutorial paper mentioned.</span></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><span style="font-size:12pt" class=""><br class="">
</span></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><span style="font-size:12pt" class="">Many thanks,</span></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class="">
</div><div style="margin-top: 0px; margin-bottom: 0px;" class="">Daniel</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class="">
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<font size="2" style="font-family:Calibri,sans-serif,serif,EmojiFont" class=""><span style="font-size:11pt" class=""><font size="2" color="#8C1515" class=""><span style="font-size:10pt" class=""><b class="">Daniel S. Joyce, </b></span></font><font size="2" color="#8C1515" class=""><span style="font-size:10pt" class=""><b class="">PhD</b></span></font></span></font></div>
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<font size="2" style="font-family:Calibri,sans-serif,serif,EmojiFont" class=""><span style="font-size:11pt" class=""><font size="2" color="#4D4F53" class=""><span style="font-size:10pt" class="">Postdoctoral Research Fellow</span></font></span></font></div>
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<font size="2" style="font-family:Calibri,sans-serif,serif,EmojiFont" class=""><span style="font-size:11pt" class=""><font size="2" color="#4D4F53" class=""><span style="font-size:10pt" class="">VA Palo Alto Health Care System & </span></font><font size="2" color="#4D4F53" class=""><span style="font-size:10pt" class="">Department
of Psychiatry and Behavioral Sciences</span></font><font size="2" color="#4D4F53" class=""><span style="font-size:10pt" class=""> | School of Medicine | Stanford University | <a href="mailto:dsjoyce@stanford.edu" target="_blank" class="">dsjoyce@stanford.edu</a></span></font><font size="2" color="#494A4C" class=""><span style="font-size:10pt" class=""></span></font></span></font></div>
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</blockquote></div><br clear="all" class=""><div class=""><br class=""></div>-- <br class=""><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div style="font-size:12.8px" class=""><div style="font-size:12.8px" class=""><span style="font-size:12.8px" class="">James Mazer</span><br class=""></div><div style="font-size:12.8px" class=""><span style="font-size:12.8px" class=""> Department of Cell Biology & Neuroscience</span><br class=""></div><div style="font-size:12.8px" class=""><span style="font-size:12.8px" class=""> Montana State University, Bozeman, MT</span></div><div style="font-size:12.8px" class=""><span style="font-size:12.8px" class=""> <a href="mailto:james.mazer@montana.edu" target="_blank" class="">james.mazer@montana.edu</a> 406-994-5947</span></div><div style="font-size:12.8px" class=""><span style="font-size:12.8px" class=""> </span><span style="font-size:12.8px" class=""><a href="http://kernel.montana.edu/" target="_blank" class="">http://kernel.montana.edu</a></span></div></div></div></div></div></div></div></div>
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