<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Scott and all, </div><div class=""><br class=""></div><div class="">Whoa, Mind = Blown! A configurable logic chip for about $1?</div><div class=""><br class=""></div><div class="">I am thinking about trying this out. Please let me know if this idea is stupid:</div><div class=""><br class=""></div><div class="">On of the things that Allen and I have been talking about is how to tell the difference between different users of the Raleigh Greenway Trails. We could track a runner with a PIR sensor, a walker with a sensor under an 18” cable guide on the trail and a bike by using a second sensor a foot or two away. What if I used these chips to build a (wait for it - fancy term coming) state machine? </div><div class=""><br class=""></div><div class="">The idea would be to let the Arduino sleep and then use these nifty chips to do some logic so when the Arduino is awakened by the interrupt pin, it only had to read the state machine, record the time / date of the event and go back to sleep. </div><div class=""><br class=""></div><div class="">Here are the states: </div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>- Runner - PIR sensor AND NOT Cable Guide</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>- Walker - PIR AND Cable Guide</div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>- Biker - PIR AND Cable Guide AND second pneumatic tube within + or -0.1 sec of each other</div><div class=""><br class=""></div><div class="">Then, once the state is loaded, the event recorded, the Arduino clears the state machine and we wait for the next event?</div><div class=""><br class=""></div><div class="">Does this sound like a reasonable idea? </div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Thanks,</div><div class=""><br class=""></div><div class="">Chip</div><div class=""><br class=""></div><br class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Charles McClelland</div><div class=""><a href="mailto:chip@mcclellands.org" class="">chip@mcclellands.org</a></div><div class="">919-624-5562</div><div class=""><br class=""></div></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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<br class=""><div><blockquote type="cite" class=""><div class="">On Jan 20, 2015, at 4:56 PM, <a href="mailto:triembed-request@triembed.org" class="">triembed-request@triembed.org</a> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Interesting contest to enter from Embedded Computing magazine</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class=""> if you feel challenged</span></div></blockquote></div><br class=""></body></html>