Thin film sensor alarm

Discussion in 'The Projects Forum' started by Viscount Hobnob, Jan 21, 2014.

  1. Viscount Hobnob

    Thread Starter New Member

    Jan 21, 2014
    I have been messing around for a few weeks trying to improve on a basic fishing alarm (one that uses a revolving wheel with magnets that opens and closes a reed switch). This doesn't offer the sensitivity that I'm looking for, as a slack line doesn't move the roller wheel. I have however designed an idea that creates a slight movement/vibration when a slack line occurs. I would therefore like to register this vibration in an alarm & LED circuit. I have found a perfect example of what I would like to achieve on YouTube, but do not have the technical knowledge to recreate. I have managed to build with a standard piezo element, but the thin film sensor is another story. Could somebody please help with the circuit diagram.
  2. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    My basic fishing alarm is a small bell screwed onto an alligator clip.

    You just attach it to the rod tip when bait casting on a dead stick.
  3. Metalmann

    Active Member

    Dec 8, 2012
    Years ago, I used the bell/clip trick for cat fishing.

    That sensor film, may be fantastic for such an old trick.