Yes, thank you very much for walking through the examples, I do appreciate
it. I figured out the solution: for some reason pin P9_5 ("VDD 5V," the pin
the demo says to use to power the PIR) was not working. But I discovered
that pin P9_7 ("SYS 5V") *is* working, so I used that to power the PIR, and
now everything is working perfectly. I did play around with the
re-triggering, but either setting seemed to work pretty well (one setting
was more responsive, while the other one stayed on the whole time motion
was detected). Thanks again for all the help!
This is also my first time using a Google Groups message board. Is there
some way to officially "accept" or "like" an answer, like on stackoverflow?
On Friday, December 16, 2016 at 10:41:09 PM UTC-5, Chris Fink wrote:
>
> This is my first time using a BeagleBone Black (it's a Rev C), and I
> started out with the "Blink on-board LED
> <http://beagleboard.org/Support/BoneScript/demo_blinkled/>" and "Blink
> external LED
> <http://beagleboard.org/Support/BoneScript/demo_blinkled_external/>"
> demos, both of which worked perfectly. Then I advanced to the PIR Motion
> Sensor demo <http://beagleboard.org/Support/BoneScript/PIRMotionSensor>,
> and I'm quite certain I connected everything just as they said, but I can't
> seem to get it to work.
>
> At first the LED light turned on right away, and I got a constant
> succession of "Motion Detected" messages. Then I realized that the code
> assumed an active-LOW output from the PIR, but my PIR is active-HIGH
> <https://learn.adafruit.com/pir-passive-infrared-proximity-motion-sensor/>,
> so I changed the lines
>
>
>
> *if(x.value === 0){ b.digitalWrite(led, 1);
> console.log("Motion Detected");*
>
> to instead be
>
>
>
> *if(x.value === 1){ b.digitalWrite(led, 1);
> console.log("Motion Detected");*
>
> In this case the light does *not* come on, and I get a constant
> succession of "No Motion Detected" messages...and the PIR never detects
> motion, no matter how much I move, or how close I am. I even tried a
> different PIR
> <https://www.virtuabotix.com/product/virtuabotix-pir-motion-sensor/>
> (also active-HIGH), and got the exact same results. I also tried removing
> the pull-up resistor, which also did not work.
>
>
> Then I found this post...
>
>
> https://groups.google.com/forum/#!searchin/beagleboard/pir%7Csort:relevance/beagleboard/ydD2Cyi5fJo/QK0jHa53NMgJ
>
> ...which makes me think that the demo isn't working because I'm not using
> the *exact* PIR sensor prescribed in the PIR Motion Sensor demo
> <http://beagleboard.org/Support/BoneScript/PIRMotionSensor>. If that is
> the case, where do I purchase that PIR sensor? I cannot find a link to it
> anywhere.
>
>
> Thanks in advance for the help!
>
>
>
>
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