Rocket finder .. beepers?

Discussion in 'Rocketry Electronics and Software' started by Tom, Nov 2, 2019.

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  1. Jan 2, 2020 #31

    GalantVR41062

    GalantVR41062

    GalantVR41062

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    I was able to stick a zip tie threw the clear heat shrink and use a fishing snap for attachment onto the recovery harness.

    I then soldered up the charge/trigger harness, using the red for power, 7.2v for charging and 3.7v for trigger. And black for ground.

    It just takes a quick connect/ disconnect of the 1s battery that puts the unit into recovery mode.

    Having the photo sensor onboard should turn into a flashing blue light until apogee or main event then turn into the 100db noise maker it is. Needless to say if there is a failure to separate then it will remain silent and be of no help finding the lawn dart.

    I am waiting for a warmer not cloudy day to go launch a few rockets now that the lakes have frozen over and test this thing out.

    ~John
     

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  2. Jan 2, 2020 #32

    John Kemker

    John Kemker

    John Kemker

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    Looks good, John!
     
  3. Jan 7, 2020 #33

    Sooner Boomer

    Sooner Boomer

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  4. Jan 8, 2020 #34

    K'Tesh

    K'Tesh

    K'Tesh

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    Estes used to sell a transmitter and receiver back in 1993, the Estes Transroc II (EST 2237).

    [​IMG]

    There is also an old line of kids toys with a name like "SpyTech", that may have had a parabolic microphone as well.
     
    Last edited: Jan 9, 2020
  5. Jan 8, 2020 #35

    Sooner Boomer

    Sooner Boomer

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    I'm too cheap to buy something. I use the core out of a paper towel roll. Pressed against the ear, it gives extremely good directionality. I guess if it were the right length, it would also resonate/amplify the beeper frequency.

    HA! Just thought of this:

    [​IMG]
     
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