Ken's Electric Fishing Float

The first time I went squidding with a friend, we used a float. I caught two squid -sheer luck.
My very experienced mate didn't catch any! But he did cut up the squid for our tasty lunch.
Boy, staring at a float for ages is boring! I'd rather have been reading a book.
So at home I searched the net for a hi-tech solution. The only ones I found, lit LEDs on a float when a strike happened. Still have to watch it.

So I came up with this solution. (As yet untested in the the waves.)

It was a crude job. Results are below. Take care, and you might be able to relax, next time you are float fishing.

Leaving some length on the
mercury switch leads allows
pivoting it for correct alignment.

A switch crudely mounted using screws
from an old 2.5" hard drive.

Some careful stuffing with foam
secures the PCB adequately.

The finished float,
upside down to show the wire loop outline.

The trace and line are fastened to the wire loop. (Could also have an extra loop at the top for the line.)

The theory is that a fish or squid grabs the hook and pulls the float vertical, with the Tx antenna at the top, out of the water.. The mercury switch tilts on and sends to the bell.

Turn the bell off using the slide switch before adjacent fisherpeople get too annoyed.

Store the float with the loop at the bottom, so it isn't always activated. (It uses a Lithium coin battery, available at cheap shops for... cheap.)

Happy fishing. Let me know if you make one, and how it goes.