[x] Welcome at THunting.com!

A fun place to talk about Metal Detecting, Treasure Hunting & Prospecting. Here you can share finds and experience with thousands of members from all over the world

Join us and Register Now - Its FREE & EASY

THunting.com
Treasure Hunting & Metal Detecting Community
   
Advanced Search
*
Welcome, Guest! Please login or register HERE - It is FREE and easy.
Only registered users can post and view images on our message boards.
Did you miss your activation email?

Login with email, password and session length
Or Login Using Social Network Account
News:
Pages:  1 2 3 4 5 6 7   Go Down
Print
Share this topic on FacebookShare this topic on Del.icio.usShare this topic on DiggShare this topic on RedditShare this topic on Twitter
Tags:
0 Members and 3 Guests are viewing this topic.
Offline golddustcarlTopic starter
Silver Member
*

Mood:Happy
Happy

Join Date: May, 2014
Thank you159

Activity
2%
Male
United States
Posts: 1333
Referrals: 0

7382.00 Gold
View Inventory
Linux
Linux
Chrome 44.0.2403.133
Chrome 44.0.2403.133

Awards

NOKTA SIMPLEX+,Tesoro Vaquero, VibraProbe 580, Garrett Carrot, Garrett Master Hunter ADSIII
« Reply #10 on: July 08, 2017, 02:11:21 am »
Go Up Go Down
Quote:Posted by Mudflap
That sounds like a neat project. What are you using for processors?


Arduino Nanos. Small package, Auto running, and lots of help on the forums as well as gobs of programs, libraries on github.  All free and open source. Did I  mention cheap? $2.50 each. Less from China.

Dusty Ca

Posted on: July 08, 2017, 12:35:26 am
Quote:Posted by homefire
It's Sure not a Arduino !  LOL



Sorry to bust your balloon,  Homie. Punishment

Posted on: July 08, 2017, 12:38:07 am
Quote:Posted by cristinealdrete
wow....interested in metal detector, too. Cheesy


Welcome to the forum. Not ready for publication yet. 75% complete.

Dusty Carl.


Posted on: July 08, 2017, 12:40:47 am
Also forgot to mention that you don't have to buy a burner. You program it directly from your computer using the IDE. There is a mini USB connector on board. You don't really need a 32 Mhz controller to build a PI detector. Pulse frequencies are usually 1 kHz and under and pulse widths are just a couple of hundred uS at most. The Nano has a response time of 625 nano secs. Plenty fast enough.

Dusty Carl

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,65466.msg319559.html#msg319559


A bad day at gold prospecting or metal detecting is better than a good day at work.

Logged
GOLDDUST CARL
Offline GoldDigger1950
The Old Man and the Soil
Global Moderator
Platin Member
*****

Just call me GD.
The Old Man and the Soil
Join Date: Jun, 2009
Thank you226

Activity
1%
Male
United States
Posts: 11221
Referrals: 12

47848.00 Gold
View Inventory
Windows NT 10.0
Windows NT 10.0
Firefox 54.0
Firefox 54.0

Awards

Garrett Groundhog ADS, Garrett Sea Hunter, Bounty Hunter Tracker IV, Bounty Hunter Pioneer 505,Minelab Eldorado Mk II, Tesoro Compadre, Tesoro Tiger Shark & A Few Home Brew Detectors
« Reply #11 on: July 08, 2017, 05:21:57 am »
Go Up Go Down
One thing I forgot to mention is this. Turn off your receiver entirely during the TX cycle and delay turning it on again based on trial and error. The TX coil field should be completely collapsed before you turn on the RX. A snubber resister across the coil will do the job of collapsing it faster.  The TX signal will swamp the receiver amplifier and may even damage it as the return eddy current fields you are "listening" for require 100,000 or more gain. They are very, very faint.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,65466.msg319561.html#msg319561

Logged
It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
Let's Talk Treasure!
Offline Homefire
Global Moderator
Platin Member
*****

Join Date: Jan, 2009
Thank you664

Activity
0%
Male
United States
Posts: 15906
Referrals: 0

52360.00 Gold
View Inventory
Windows NT 10.0
Windows NT 10.0
Firefox 54.0
Firefox 54.0

Awards
« Reply #12 on: July 08, 2017, 07:40:20 am »
Go Up Go Down
Been playing with Arduino here for some time now.  Some how I've ended up with a pile of the things.  Started with three Nano just to play around with. Sounds like I'm late on this one but Be warned !  They're ADDICTIVE !  This is just what I've listed as having in my Arduino Get Kit.  LOL



Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,65466.msg319565.html#msg319565


There are 1 attachment(s) in this post which you can not view or download

Please register for viewing them.

AduinoHarwarOnHand.txt

« Last Edit: July 08, 2017, 08:01:57 am by homefire » 		Logged
Offline golddustcarlTopic starter
Silver Member
*

Mood:Happy
Happy

Join Date: May, 2014
Thank you159

Activity
2%
Male
United States
Posts: 1333
Referrals: 0

7382.00 Gold
View Inventory
Linux
Linux
Chrome 44.0.2403.133
Chrome 44.0.2403.133

Awards

NOKTA SIMPLEX+,Tesoro Vaquero, VibraProbe 580, Garrett Carrot, Garrett Master Hunter ADSIII
« Reply #13 on: July 08, 2017, 12:26:14 pm »
Go Up Go Down
Quote:Posted by homefire
Been playing with Arduino here for some time now.  Some how I've ended up with a pile of the things.  Started with three Nano just to play around with. Sounds like I'm late on this one but Be warned !  They're ADDICTIVE !  This is just what I've listed as having in my Arduino Get Kit.  LOL

Lots of awsome hardware there bud. Have you made anything with them yet? What I am doing with the 3 Arduinos is having them do the slower things like human input, displaying stuff, generating pulses and sound, serial communication, and stuff that usually eat up processor time. The actual processing of the coil signal will be done by a high speed, low noise, circuit. Not talking TL072 (lol). All new stuff.

Dusty Carl




Posted on: July 08, 2017, 10:01:44 am
Forgot to mention. You will need the Chinese driver for those Nanos. The American ones use a FTDI chip. If you don't have it I can pm it to you or upload it to the download section.

Dusty Carl

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,65466.msg319578.html#msg319578


A bad day at gold prospecting or metal detecting is better than a good day at work.

Logged
GOLDDUST CARL
Offline Homefire
Global Moderator
Platin Member
*****

Join Date: Jan, 2009
Thank you664

Activity
0%
Male
United States
Posts: 15906
Referrals: 0

52360.00 Gold
View Inventory
Windows NT 10.0
Windows NT 10.0
Firefox 54.0
Firefox 54.0

Awards
« Reply #14 on: July 08, 2017, 01:02:03 pm »
Go Up Go Down
The CH340 Driver is Easy Do.  All but the Pricey Chines Arduino uses it.   Cool

Done a few things with them.  Nothing Note Worthy in the detector realm.  

Current Project is for a guy I know building a Microlight.  He lives  just over the dotted line in California from you.

Gathering Parts , Have all the sketches and Libraries.  Attempting to follow a known working system.  

Struggling Wrapping my head around some of this stuff.  I have until Next Summer to get it working.  LOL   :Smiley   Tongue   Undecided

You are not allowed to view links.
Please Register or Login

http://experimentalavionics.com/efis-19264/



Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,65466.msg319579.html#msg319579

« Last Edit: July 08, 2017, 05:34:20 pm by homefire » 		Logged
Offline nickel_n
Mod
Gold Member
*****

Join Date: Jan, 2009
Thank you363

Activity
4%
Male
Australia
Posts: 2796
Referrals: 0

6190.00 Gold
View Inventory
Windows XP
Windows XP
Firefox 53.0
Firefox 53.0

Awards

MXT All Pro,EagleSL,Spectrum,XLT,DFX.Garrett Seahunter markII,SD2000,GT16000
« Reply #15 on: July 08, 2017, 05:26:39 pm »
Go Up Go Down
Quote:Posted by homefire
  Attempting to follow a known working system.   

Struggling Wrapping my head around some of this stuff.  I have until Next Summer to get it working.  LOL   :Smiley   Tongue   Undecided

You are not allowed to view links.
Please Register or Login

http://experimentalavionics.com/efis-19264/



try the link and i get
"Error establishing a database connection"  Sad

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,65466.msg319583.html#msg319583

Logged
The Diggers Oath
We swear by the Southern Cross to stand by each other and fight to defend our rights and liberties.
Marked as best answer by golddustcarl July 08, 2017, 11:23:03 am
Offline Homefire
Global Moderator
Platin Member
*****

Join Date: Jan, 2009
Thank you664

Activity
0%
Male
United States
Posts: 15906
Referrals: 0

52360.00 Gold
View Inventory
Windows NT 10.0
Windows NT 10.0
Firefox 54.0
Firefox 54.0

Awards
« Reply #16 on: July 08, 2017, 07:07:38 pm »
Go Up Go Down
Paste it in your browser.  The Forum seems to be doing something to it.  

You are not allowed to view links.
Please Register or Login

http://experimentalavionics.com/efis-19264/


Emmmmm  Link seems to work on and off.   You can see it hear and follow the links. 

You are not allowed to view links.
Please Register or Login

http://www.youtube.com/watch?v=emqc_vi7-Rg


Posted on: July 08, 2017, 05:36:24 pm
Once you have a Arduino in hand you can make them do things in just minutes. 

From the Arduino Home page you can obtain any and all Software to get started. 

You are not allowed to view links.
Please Register or Login

https://www.arduino.cc/


Here is a Link to the CH34o Driver if anyone wishes to play with it. 

You are not allowed to view links.
Please Register or Login

http://sparks.gogo.co.nz/ch340.html

 


I'm waiting to see how Carl goes about the PI Front End Rx Amp .

 The Arduino's ADC sorta Sucks with only 10 bit  samples limited to 0-5vdc. 

You are not allowed to view links.
Please Register or Login

https://www.arduino.cc/en/Reference/AnalogRead


analogRead()
Description

Reads the value from the specified analog pin. The Arduino board contains a 6 channel (8 channels on the Mini and Nano, 16 on the Mega), 10-bit analog to digital converter. This means that it will map input voltages between 0 and 5 volts into integer values between 0 and 1023. This yields a resolution between readings of: 5 volts / 1024 units or, .0049 volts (4.9 mV) per unit. The input range and resolution can be changed using analogReference().

It takes about 100 microseconds (0.0001 s) to read an analog input, so the maximum reading rate is about 10,000 times a second.


Some Serious Pre Scaling and Conditioning would be in order I would think ?  A Just functional PI Detector can be had without any Conditioning but performance is akin to a BFO.

Here is your BARE BONES Arduino PI


Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,65466.msg319588.html#msg319588


There are 1 attachment(s) in this post which you can not view or download

Please register for viewing them.

LastBoardWithTrimerTest.jpg

Logged
Offline golddustcarlTopic starter
Silver Member
*

Mood:Happy
Happy

Join Date: May, 2014
Thank you159

Activity
2%
Male
United States
Posts: 1333
Referrals: 0

7382.00 Gold
View Inventory
Linux
Linux
Chrome 44.0.2403.133
Chrome 44.0.2403.133

Awards

NOKTA SIMPLEX+,Tesoro Vaquero, VibraProbe 580, Garrett Carrot, Garrett Master Hunter ADSIII
« Reply #17 on: July 08, 2017, 07:34:04 pm »
Go Up Go Down
Looks like a cool project Homie. As lomg as you have nost of them parts, go for it.

I am aware of those stats that you gave and that bare bones circuit is nothing more than a pinpointer which I  am not going to be using anyways. Not sensitive enough and is all metal mode. Built the PIC one from the guy in Estonia, and ended up with another pinpointer with an expensive hard to find processor.

Dusty Carl

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,65466.msg319591.html#msg319591


A bad day at gold prospecting or metal detecting is better than a good day at work.

Logged
GOLDDUST CARL
Offline Homefire
Global Moderator
Platin Member
*****

Join Date: Jan, 2009
Thank you664

Activity
0%
Male
United States
Posts: 15906
Referrals: 0

52360.00 Gold
View Inventory
Windows NT 10.0
Windows NT 10.0
Firefox 54.0
Firefox 54.0

Awards
« Reply #18 on: July 08, 2017, 08:21:34 pm »
Go Up Go Down
  No the originator of that circuit uses it for a detector.  I have the sketch if you would like to see what he did.  I bread boarded one and it works, but not worth  building for use to me.  I have a Mini Pulse Plus to assemble when I get to it.  Barracuda is done waiting for a Enclosure to come it's way.

SOOOOOOOOOOOO?   How you planing on doing your thing here ?  Once you get it worked out you could Program a DIP28 ATmega328P-PU MCU IC using a Uno and Shrink your project. down to Atmega,Crystal and Power .  Come right off the IC Pins for your I/O...    I think if you did it right you could even clock like three MCU off the same Crystal . That may help with your Serial Com I2c if your going to use it. 

You know you can Clock your Arduino up to 20Mhz with a Crystal change?  If you don't change the Boot loader all your Program Timing Functions will by 25% but Eaaaa!

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,65466.msg319593.html#msg319593

Logged
Offline Mudflap
Knight
Gold Member
*

Join Date: Apr, 2010
Thank you92

Activity
0%

United States
Posts: 1864
Referrals: 0

9300.00 Gold
View Inventory
Mac OS X 10.12
Mac OS X 10.12
Firefox 54.0
Firefox 54.0

Awards
« Reply #19 on: July 09, 2017, 07:05:14 pm »
Go Up Go Down
I just can't keep up with you birds!! Grin  Early 70s learned the CDP1802, went to the 6502. Tried some ATMega stuff but the programing interface at that time was either parallel or serial,of course by then i was off to usb and Apple. Have a little Win10 tablet with a serial port for my SDR toys. Maybe could get back at it with that.....

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,65466.msg319605.html#msg319605

Logged
Print
Pages:  1 2 3 4 5 6 7   Go Up
Jump to:  

Powered by SMF 1.1.19 | SMF © 2005, Simple Machines | Sitemap
Copyright THunting.com