Skip to content
  • MySensors
  • OpenHardware.io
  • Categories
  • Recent
  • Tags
  • Popular
Skins
  • Light
  • Brite
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (No Skin)
  • No Skin
Collapse
Brand Logo
  1. Home
  2. General Discussion
  3. AM612 PIR can

AM612 PIR can

Scheduled Pinned Locked Moved General Discussion
5 Posts 3 Posters 546 Views 3 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • W Offline
    W Offline
    waspie
    wrote on last edited by
    #1

    Did anyone ever find a PIR sensor that could handle voltages below 2.8v without going wonky?

    I use CR123a batteries with my PIR and I recently had to replace one. It was at the moment I realized I had at least of year of life out of this one and it had only then dropped to 60%.

    If there was another sensor readily and cheaply available it could be of some interest although I'm pretty content with a year of life.

    C 1 Reply Last reply
    1
    • W waspie

      Did anyone ever find a PIR sensor that could handle voltages below 2.8v without going wonky?

      I use CR123a batteries with my PIR and I recently had to replace one. It was at the moment I realized I had at least of year of life out of this one and it had only then dropped to 60%.

      If there was another sensor readily and cheaply available it could be of some interest although I'm pretty content with a year of life.

      C Offline
      C Offline
      chey
      wrote on last edited by
      #2

      @waspie Have you tried something like this?

      https://www.adafruit.com/product/4667

      1 Reply Last reply
      1
      • mfalkviddM Offline
        mfalkviddM Offline
        mfalkvidd
        Mod
        wrote on last edited by
        #3

        BL412 (the adafruit link) is rated for 2.7V minimum.

        However, the BS412 is rated for 2.0V minimum. Maybe that's a good candidate?

        W 1 Reply Last reply
        1
        • mfalkviddM mfalkvidd

          BL412 (the adafruit link) is rated for 2.7V minimum.

          However, the BS412 is rated for 2.0V minimum. Maybe that's a good candidate?

          W Offline
          W Offline
          waspie
          wrote on last edited by
          #4

          @mfalkvidd said in AM612 PIR can:

          BL412 (the adafruit link) is rated for 2.7V minimum.

          However, the BS412 is rated for 2.0V minimum. Maybe that's a good candidate?

          nice find!
          and 11ua, a little lower than the 612. Might have to try one of these some day

          @chey I really never did much looking around. As I said, it wasn't really much of an issue. The first PIRs I built are having their batteries die just now. I started down this road with the PIRs about 2 years ago - so that's about how long they've been lasting as-is. :)

          C 1 Reply Last reply
          1
          • W waspie

            @mfalkvidd said in AM612 PIR can:

            BL412 (the adafruit link) is rated for 2.7V minimum.

            However, the BS412 is rated for 2.0V minimum. Maybe that's a good candidate?

            nice find!
            and 11ua, a little lower than the 612. Might have to try one of these some day

            @chey I really never did much looking around. As I said, it wasn't really much of an issue. The first PIRs I built are having their batteries die just now. I started down this road with the PIRs about 2 years ago - so that's about how long they've been lasting as-is. :)

            C Offline
            C Offline
            chey
            wrote on last edited by
            #5

            @waspie I like it when people come back and share their experience. It's helps newbies like myself get direction in our own projects. So thank you :)

            1 Reply Last reply
            1

            Hello! It looks like you're interested in this conversation, but you don't have an account yet.

            Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.

            With your input, this post could be even better 💗

            Register Login
            Reply
            • Reply as topic
            Log in to reply
            • Oldest to Newest
            • Newest to Oldest
            • Most Votes


            34

            Online

            12.0k

            Users

            11.2k

            Topics

            113.4k

            Posts


            Copyright 2025 TBD   |   Forum Guidelines   |   Privacy Policy   |   Terms of Service
            • Login

            • Don't have an account? Register

            • Login or register to search.
            • First post
              Last post
            0
            • MySensors
            • OpenHardware.io
            • Categories
            • Recent
            • Tags
            • Popular