Surf PI - Looked at decay curve when dunking coil in saltwater ... was not as dramatic as I thought

[Polymer]

The swell was finally low today, so I wrapped everthing up and went to the sea.

I've been building a snorkelling Surf Pi and wanted to see what happens to the curves
when it gets in the water.

The results actually amazed me and the signals were not as "influenced"...

[antalaz]

Hi everyone !

I've managed to build a Surf Pi from Silverdog' kits.
It's working quite good (it can detect metal, so the main function is ok I think )

I would like to setup my damping resistor and my delay,so i made some research on the forum and i've found a post...

[mellao]

Hi,
this is my first post, so I would like to talk about me and my problem
I'm Carlos (mellao), from Spain, and I'm a little noob in this metal detectors world
I bought a surf pi 1.2 from silverdogs and I build it, and check the components a lot of times and it seems to be OK....

[yedla]

Guys, I'm novice. Please help.
I have soldered all components to Silverdog's Surf PI 1.2. Now how do I connect battery pack, speaker (5V Buzzer) and coils? Can I directly solder a speaker wire to buzzer and then the other end to molex female? Does the polarity matter? I appreciate any help with...