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Weekend Projects – PIR Sensor Arduino Alarm

Weekend Projects – PIR Sensor Arduino Alarm

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24 Comments

  1. fragwits

    September 29, 2017 at 10:45 pm

    If you have used leds (no long/short pin on them) the flat side of a led is the –

  2. Brian Bowling

    September 29, 2017 at 10:45 pm

    Aren't zombies room temperature?

  3. Ma. Eloisa Aguinaldo

    September 29, 2017 at 10:45 pm

    what are the needsmaterials here?

  4. snaprollinpitts

    September 29, 2017 at 10:45 pm

    nice yo yo work, oh and thanks for the PIR setup   mike

  5. iDrunkky

    September 29, 2017 at 10:45 pm

    when i connected and did every thing right, The LED and the buzzer are alwayz ON
    they never turned off i left the room for a while and they still ON

  6. Jake Jones

    September 29, 2017 at 10:45 pm

    Plenty of cool ways to use this one!
    thanks for sharing…….

  7. moterboard

    September 29, 2017 at 10:45 pm

    Where is the series resistive for the LED?

  8. Aitor Sierra

    September 29, 2017 at 10:45 pm

    Actually there is a relationship between the thermal radiation (in the range of infrarred) and the temperature (Wien Law). matter emits radiation and for normal temperatures the maximum peak is in the infrarred, so we can detect the zombie because is matter and matter emits radiation.

  9. und3rgr0undfr34k

    September 29, 2017 at 10:45 pm

    Ausssommeeeeeeeeeeee!!!!!!!!

  10. franscartoons

    September 29, 2017 at 10:45 pm

    neither should a yo-yo but the video says it does 😀

  11. Mental

    September 29, 2017 at 10:45 pm

    But it moves, and muscles create some heat I guess 😀

  12. iLoveEatingPie

    September 29, 2017 at 10:45 pm

    Have you met a cold blooded zombie?

  13. microwaveman123

    September 29, 2017 at 10:45 pm

    that means the room will get colder… The alarm should still work..

  14. gingerBill

    September 29, 2017 at 10:45 pm

    Actually that doesn't matter but the zombie will still be at least room temperature if it's in a room. And because of this, it will emit heat or Infra-red light. This is a tight of light has a longer wavelength than visible light. All object emit a type of light with a certain wavelength depending on it's temperature. Around Room Temp. (298 K, 25 C, 77 F), the wavelength of the light is about 9.7 microns which is in the Infrared range. If you want to learn more, read about Black-Body Radiation.

  15. TonberryCactaur

    September 29, 2017 at 10:45 pm

    Ideally they won't have the exact same temperatures as the room. 😛
    Should detect cold things moving too, right?

  16. dewitall

    September 29, 2017 at 10:45 pm

    I imagine that it depends on how close the writers want zombies to reality; body mechanics need circulation to move muscles. That aside, assuming the zombies in question have rotting flesh or something like that would also release heat.

  17. MomotarosSWORD

    September 29, 2017 at 10:45 pm

    alarm for zombies? it will only alert the horde of your location.

  18. LFoxter

    September 29, 2017 at 10:45 pm

    Zombies don't really have blood circulation…do they? They shouldn't have much body heat D:

  19. Adam Watts

    September 29, 2017 at 10:45 pm

    Loool! i think the terms and conditions were at the end hehe

  20. Lance

    September 29, 2017 at 10:45 pm

    Radio shack has that exact breadboard and Wires. I like it.

  21. mwechtal

    September 29, 2017 at 10:45 pm

    But, zombies are dead, and don't emit heat!

  22. pdshiff

    September 29, 2017 at 10:45 pm

    But zombies are undead so they don't generate any heat! This project is going to get somebody eaten.

  23. Matty Ristenpatt

    September 29, 2017 at 10:45 pm

    pretty cool project now i luckly got to do something this weekend

  24. Electroalek

    September 29, 2017 at 10:45 pm

    Interesting, but you can really make an "analog" one using a 555 Timer chip configured in bi-stable mode.

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