Vibration for MDs via audio-jack

[Funfinder]

thanks alot, bernte_one !!

The work of Eddy71 could be the solution!
At least if some poti was added.
Those 2 diodes together with the rest could work good
enough to filter out only the better MD target signals.

I will try to make it working for the audio-jack
because otherwise the MDs have to be "mod-chiped".


________________________________________________


Ultra Sensitivity Audio etc. Signals Vibration Circuit

Thx to bernte I started again working on this stuff
and that's why I can proudly present you now
a real hell of an amplification circuit!

Welcome to the Ultra Sensitivity Edition:


hitec-inventing in progress:


I guess it's already too sensitive for the MDs audio,
or better said:
It needs additonal parts to receive a much better signal-input-contrast!

The signal should become non-linear spreaded, so a 0,01mV audio signal
remains that low, a 0,1mV signal gets amplified to 1V while some
0,2mV "clear MD find beep" in the end shows up as 4v and
only this one starts the vibration-motor.


Anyway - if everything fails, we can still use the OhMiBod-technology!
By the way, using such remote-controlled things is not always pleasure -
it can be like some kind of little electro-shocking! Enjoy this movie:

https://www.youtube.com/watch?v=d2J0Lnr0wq8

[Cadmaster375]

I have been avidly reading this stuff and see that nobody has found a solution yet. After a couple hours of research I found a possible solution that should be easily modded to work for detectors. http://www.scary-terry.com/audioservo/audioservo.htm

I would think that removing some of the servo driver circuit should make it compatible with our gear. Mind you I am just a lurker so what do I know.

[Funfinder]

thx 4 the contribution.

Of course this is an already pretty advanced circuit and should be better
integrated into the MD directly somehow.

The most easy way would be to transform any noise signal triggered by its intensity
first to either 0 or 1, but this compare-circuit must already reacts on milli-volt level.
Next step: the vibration-motor only runs at state 1.

Or a detector is used that makes long clear beeps and is silent otherwise.

The problem is that especially those weak "snap, crackle and pop" noises
(as the Fisher 1266-X manuals calls them ) are not always the same
"electro-energetic" even if a find is detected, find-signals also don't sum
up after some time with motion-detectors for triggering reliable the motor.

For me at the moment the best solution is mixing music and audio signals
into 1 amp-output where each input channel volume level is pre-adjustable.

Because the very weak find-signals give ca. just a tenth of the energy-reaction
compared with maximum find-signals and thats why some special vibration-pattern
with at least 3 different pulse-structures would be needed.

A very slow bubb-----bubb-----bubb----- etc. signal (one rotation each second)
for the super weak signals (like when the Garrett Pro Pointer starts to detect something)
occures on critical adjustment level, but a powerful and strong vibration if the find is very near.

btw. I can record and view the very weak detection and noise signals on computer
and those short and small signal peaks are often ultra-fast and mixed with wrong signals,
coming from the circuit-parts, electro-smog or the ground-mineralization.


Perhaps googles with an ultrafast blinking LED is the solution!

Each of those short signals makes the LED blink for just 0,01 seconds
and the more often or "intense" the "strobo" is, the more close is the metal!
Combined with 2 level brightness or 2 colors - for weak and for real good signals.

Treasure-hunting light show.

But a vibration motor never could start-stop as fast as a LED.



Metal detector producers also could equip the housings with a
second jack similar to those for the headphones! But for a vibration device!
Which even could be wireless.

Feeded directly by the raw electronic signals, no sound inbetween
and which also switches the audio off if plugged in.
This way each MD-user can chose on its own if he likes to search
by vibration-signals or not.


Hopefully we get this improvement sooner or later because it really
is much more fun to "work" at the search-areas with additional
"full audio entertainment". Otherwise the best solution so far is
the Makro Racer / Racer2 or some homebrew 2in1 audio-mixer.

For those who are already satisfied with rather silent music etc.
soldering 2 inputs on one headphone is the most simple solution.
Of course the cable coming from the detector has to be of good
enough quality so it doesn't breaks while it shakes around.
And the detector should have some volume control.

More info about it:
http://www.geotech1.com/forums/showt...-the-same-time

[Funfinder]

Audio signals - vibrator for metal-detectors etc.!



Only 2 years later since I've started this thread
.... and after another 20 hours of tinkering (yesterday)
my genius mind finally figured out how it works!

Bingo!



It's great because from now on I can go treasure-hunting with the Jeohunter and
DeepHunter including 1 meter coil and - drumsolo - I can listen to music nearby!


But now comes the best:
This circuit not just works with Audio On - Audio Off signals - no no ...
It even works with the Garrett ACE beeps and pinpointing signals !!!

As long as the signals are not to short and weak it might work with every detector!
And it works also with very weak signals as long as they are clear enough.


But I'm not sure if I should post the schematic here because patent-reserving and copyright
greedy idiots could grab it and make big business out of my invention - which is very unfair!
It has to be at least protected as open source or something like that.
If we compare it with Red Bull - the guy who invented this surely not pretty healthy crap
meanwhile is multi-millionaire (but of course it's not the only energy-drink on the market).
And many MDs are completely overpriced, too! So we need some better solution.
Perhaps Carl (here) wants to patents and afterward provides it at the forum for free.


Anyway - at the moment I'm super happy that this project is successfully finished!
Another disturbing "long time ago"-problem thrown out of the way to lust and pleasure!

[6666]

Would you be open to pm's for your circuit ?

[Funfinder]

I am doing generally noting with PM at all here since many years because
either it's possible to write about stuff in public or I'm not interested in it!

But of course we will find a way that you and other people here who wanna
have such an external MD-vibrator will be able to built one.
It's just a question how and how long it takes.


You can start with the already above posted schematic:
http://www.geotech1.com/forums/attac...chmentid=33552

and add a transistor as input stage.
Don't let yourself get tricked by the field effects - this thing while building also reacts
if you just come with your hand near the audio cable!

And as a housing with vibration motor already mounted on the PCB
you can use some old or faulty pinpointer:

I have removed only the 2 vibration-motor cables from the PCB, did cut it
into half and made the battery contacts stand alone (no longer PCB powering)


The variable resistor really has to have 500k or you better
use a fixed one with something from 100k upwards.
You have to find the limit at what value the circuit doesn't
vibrates just by itself or just when 1 audio cable is connected!

This "vibrating-by-itself" was an absolute motivation-killer for me
and I needed some drinks to remain calm and patient!

In the outside the circuit was self-vibrating with a 220k while
inside the housing all of a sudden this resistor made the circuit too insensitive
(vibrating only with strong signals).

But you should get it working since I've told you now what is to consider.


My prototype works great but isn't finished yet:
an on-off switch would be nice or at least a protection for the chip inside ...



PS: And if you got it to work with (or without) my help you can make a big business out of it!
That way at least it's someone from us and no damned patents-greedy rip-off-company!

[Funfinder]

And, so that it works:
Only connect ground (shielding wires) plus the tip of the audio-plug
which represents - if stereo - the white cable alias the left channel.

[Funfinder]

Forget that schematic - after checking out what transistor I have in use
(because this project was paused for 1 year) I saw that the layout
meanwhile has changed a lot - only the chip is still the same.

Connecting the plus pole only to the chip was a not good enough signal contrast solution.



PS:
I'm looking forward to excited and enthusiastic "great that you did it"-replies
which cheer me up if you want something and no demanding or bad mood stuff!

This successful achievement has to feel great for me not just for a second!
And only if I am happy I have the motivation to give you something from me for free!

[Funfinder]

I've created meanwhile the plan (no schematic yet) for
myself so that I'm able to rebuilt the device but so far:



Yes, this is serious now, because what Mi**** and Co.
are doing, really is no longer fun for all of us !!!

[Funfinder]

Some more hours of work and: the vibrator is ready! Yeah!

On-Off switch and variable resistor for fine-tuning added.




Tests - so far (living-room with much electro-smog) :
works with: Jeohunter, Makro Racer, Euro-Ace and Ace 250
works pretty bad with: Blisstool
works not with: DeepHunter

weight incl. 9V block, without cable: 125grams
cable length: ca. 125cm


There exists 2 detection options:
1. Lower sensitivity:
The motor is off and starts to vibrate if the signals are strong enough.
2. Higher sensitivity:
The motor is running super slow and silent all the time and if the signal-level
raises just a little bit, the vibration becomes directly really intense.


And finally a very curious thing:
The motor acts as little speaker as long as the signals are too weak
to start the vibration! But pretty quiet - the ear has to be near the
housing to hear that "magic" tunes.

Using a motor as little speaker! Well, it has a coil and magnets inside
and because its pretty sensitive, it reacts on the audio-frequencies.

So if you hear the vibration-motor singing, you're on the right track!

[Funfinder]

update:

The chances are good that you soon will get the schematic
because I asked meanwhile "those who really deserve it" and
if they are interested, they can patent it and built it for worldwide
sale, so also the non-electronic-experts can have and use it.

Concerning so far not working detectors like the DeepHunter,
I guess that some "in-between audio-plug dongle" will do the trick.

[Funfinder]

With my invention - if you check out the shape it has and the vibration...
- we finally have a chance to motivate women for treasure hunting!

Each signal will give them some erotic arousal!
Gold and Sex! Thats what they want and now they can have it
if they take a little walk in the park or at ancient sites!

But we must get this thing wireless like the Ohmybod for chaturbate:
http://www.ohmibod.com/

With cable some blushing and embarrassing situations could happen
but this would be cool for the exhibitionist style of girls!

[Funfinder]

External Vibration for Metaldetectors


OK, you had enough tension and suspense . . . . .
... on the psychological torture-rack!
Hope you enjoyed it!


Meanwhile the copyright and all rights reserved are settled.
Which means primary the idea of any external MD-vibrator itself,
because this is my invention. But naturally it's still possible to
improve the circuit, add dongles, making it wireless etc.

Of course my circuit is free to built for private persons
and if you wanna give it to your friends, just do it.

This is a market-niche product anyway!
Its for pretty fearless treasure-hunters who wanna enjoy
hearing interesting audio-books or loud music while hunting,
its for those who wanna have a total different experience!

I've created meanwhile the schematic and made it exclusive.
But you may get it later nevertheless.
For now: I'm sure you like a reverse-engineer challenge!
You can draw it on your own, post it here and I will tell you
if its correct. This gives you much more success-feelings!

And now finally - DRUMMMMMMS - here it CUMMMMMMS:




Additional technical info:
- "usual diode" means: fast signal processing glass-diode
(not the black ones, often used for power-adapters)
- the variable resistor for fine adjustment is placed
directly before or after R3 and has 200k
- Vibrator means: usual pinpointer vibration motor (DC, ca. 6-9v)
- IC pin8 has no contact with pin3

[6666]

Hi Funfinder, I tried to download the file in the link you sent me via PM, but when I clicked on the download button on the file sharing website it took me to another website which was one of those fake virus sites that tries to scam you, and locks up your browser and the voice says ring the number and its really hard to shut down your PC so I couldn't get the file

[Qiaozhi]

I really really do not understand why anyone would want to listen to an audio book or loud music while using their metal detector.
Is it honestly so boring that you need music to complete the experience?