Found this in my yard - Please help - anyone can help identify

Discussion in 'General Electronics Chat' started by ewibolo, Jul 10, 2016.

  1. ewibolo

    Thread Starter New Member

    Jul 10, 2016
    1
    0
    Hi all, just created an account. I found this in my yard today. Can anyone identify what this is? The led flashed once. It is mounted on that roughly 1/4" board and stuck on a white round "pillow". Any thoughts as to what this is?
    IMG_1524.JPG
     
  2. WBahn

    Moderator

    Mar 31, 2012
    17,758
    4,800
    My guess is that it's the guts from a solar powered yard light (such as used to mark the sides of a driveway or garden).
     
    SgtWookie and #12 like this.
  3. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,554
    2,375
    With apologies to Phil Harris!:eek:

    While I was walking down the beach one bright and sunny day
    I saw a great big wooden box a-floatin' in the bay
    I pulled it in and opened it up and much to my surprise
    Ooh, I discovered a boom-boom-boom, right before my eyes

    And than I took it home with me to give it to my wife
    But this is what she hollered at me as I walked in the door
    Oh, get outta here with that boom-boom-boom, and don't come back no more
    Max.;)
     
    SgtWookie, GopherT and #12 like this.
  4. ian field

    Distinguished Member

    Oct 27, 2012
    4,415
    784
    The PCB looks like a typical solar garden light - it probably flashed when you cast a shadow over the solar panel, they sense the current from that to turn the LED off during daylight.

    Some types have a colour changing LED that needs 4V - you could probably use the inverter to charge a supercapacitor to run a few TTL chips for short periods.
     
  5. wayneh

    Expert

    Sep 9, 2010
    12,145
    3,056
    That's an odd configuration but otherwise looks just like a solar garden light as noted. Ask your neighbors. I've had some of my lights vandalized at night. Teenagers of whoever are drawn to the light like moths and kick them across my yard. This object may have come from a neighbor's yard.
     
  6. #12

    Expert

    Nov 30, 2010
    16,321
    6,818
    Here's a strange idea: That flotation part might indicate this is a pretend buoy so you can race your RC boats around the marked race course in your swimming pool.:D
    I see an inductor, the blue part is marked, "L1". That indicates it is a Joule Thief or a voltage boost circuit running off a single AA ni-cad.
     
  7. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,802
    1,105
    Not only a garden light, but a de-luxe one! The electronics are in a clear plastic pouch that is (or was) sealed to waterproof them.
     
    #12 likes this.
  8. Externet

    AAC Fanatic!

    Nov 29, 2005
    761
    57
  9. wayneh

    Expert

    Sep 9, 2010
    12,145
    3,056
    This one is a little different. It appears to have a cap and diode to smooth the current to the LED. Not sure why you'd do that?
     
  10. benta

    Member

    Dec 7, 2015
    101
    24
    If it was in a movie, I'd say thermonuclear detonator.
    But in a back yard, it's probably a lamp...
     
    #12 likes this.
  11. KL7AJ

    AAC Fanatic!

    Nov 4, 2008
    2,040
    287
    It's an artifact from a UFO visit, obviously.
     
    ErnieM and #12 like this.
  12. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,771
    971
    Circuit board from a solar powered "floating" garden/pond light..
     
  13. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,554
    2,375
    Mistaken for a Lily pad by a local frog?:)
    Max.
     
  14. ian field

    Distinguished Member

    Oct 27, 2012
    4,415
    784

    The local £ store has floating lights that are 2 dish shaped plastic mouldings clipped together.

    Bought a few for the 3mm colour changing LED because I couldn't justify making up the Farnell minimum order to buy some there.

    5mm CC LEDs seem more common, but I haven't found any lights less than £1.49p.
     
    #12 likes this.
  15. Roderick Young

    Member

    Feb 22, 2015
    408
    168
    That looks like an improvised, inexpensive device to signal a location to someone. Perhaps where to drop off the drugs. Long ago in my family history, one of my relatives threw cans of opium into yards that were marked with the secret code...

    http://pididu.com/wordpress/blog/salvage-a-solar-yard-light/
     
    GopherT and #12 like this.
  16. GopherT

    AAC Fanatic!

    Nov 23, 2012
    6,061
    3,825
    Damn it, Roderick! I was expecting that link to be a cool story about your opium-flinging relatives!
     
  17. wayneh

    Expert

    Sep 9, 2010
    12,145
    3,056
    Huh, doesn't look like an anal probe. :eek:
     
  18. #12

    Expert

    Nov 30, 2010
    16,321
    6,818
    If the Thread Starter ever comes back, he is going to be sure we are all insane.:p
     
    shortbus and wayneh like this.
  19. wayneh

    Expert

    Sep 9, 2010
    12,145
    3,056
    What's your point?
     
  20. Techno Tronix

    Member

    Jan 10, 2015
    140
    10
    I did something like that for my Raspberry Pi Project.
     
Loading...