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Offline Virdi_249
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« Reply #380 on: January 10, 2017, 05:48:00 pm »
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First I appear in this great forum.

I want to create this detector but I have doubts with screen lcd.

Is the screen of the link correct?

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http://www.ebay.es/itm/201500734458?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT


The file .hex is of a version of the year 2012.

Thank you in advance and pardon for translation of language.

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« Last Edit: January 10, 2017, 05:50:07 pm by Virdi_249 »
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« Reply #381 on: January 10, 2017, 08:05:20 pm »
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Mud, SilverDog was selling the Kit with Programmed Chip.   Think he gave it up because so many folks had issues getting it running.  

Posted on: January 10, 2017, 07:00:45 pm
Quote:Posted by Virdi_249
First I appear in this great forum.

I want to create this detector but I have doubts with screen lcd.

Is the screen of the link correct?

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http://www.ebay.es/itm/201500734458?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT


The file .hex is of a version of the year 2012.

Thank you in advance and pardon for translation of language.




What your looking for should be within this thread.  

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http://www.thunting.com/smf/pi_designs_deepseekers/how_to_make_full_discrim_pulse_induction_machine_under_50_bucks-t7657.0.html



Found this in there: "
About LCDs.

Andy_F used BC-1602B-GPLCHb (фирма Bolymin). Подойдёт любой 16 x 2 , HD44780 - совместимый.

Maybe any LCD Modules Hitachi compatible like for example Optrex LCD 16x2 FSTN White Transflective White LED Backlight or
МТ- 16S2H, ЖКИ WHD1602D-YYK-CTK (производства Winstar) etc."

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  Welcome to the forum.

Homefire.



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« Last Edit: January 10, 2017, 08:28:59 pm by homefire »
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« Reply #382 on: January 11, 2017, 06:41:35 am »
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I have read all the thread and I have only seen that the lcd WH1602B is suitable according to this thread. That's where I got the scheme.


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http://articles.greenchip.com.ua/3-0-42-2.html


Here they sell it but I'm not sure if it's correct.

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http://www.ebay.com/itm/ZYSCOM-LCD-Display-HD44780-2x16-chr-16x2-BIG-BLUE-STN-NEGATIVE-Backlight-/121713492232?hash=item1c56b08108:g:I9kAAOSw3ydVtKci


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http://www.ebay.com/itm/1602-HD44780-16x2-LCD-Character-Display-Module-LCM-blue-backlight-/122302670388?hash=item1c79cea634:g:K5gAAOSw-0xYcKWp


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« Last Edit: January 11, 2017, 07:08:02 am by Virdi_249 »
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« Reply #383 on: January 11, 2017, 08:38:30 am »
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   The Chance used the same Atmel as the Aurduino.  That chip needs a  Hitachi HD44780 compatible LCD.   I read in that mess it needs a Hatachi Compatible.   These are compatible.  

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http://www.taydaelectronics.com/lcd-display-16-x-2-blue-character-with-backlight.html



More info on Compatible LCD.

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https://www.arduino.cc/en/Tutorial/HelloWorld


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« Last Edit: January 11, 2017, 08:51:00 am by homefire »
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« Reply #384 on: January 12, 2017, 08:22:08 am »
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I have Atmega8-16PU, arduino I think uses Atmega328P.

I have almost all the components ready to solder except the screen, I even have the table ready.

The lcd screens of the links are also valid using atmega8-16PU, pcb version 2012?

Sorry for the language, a pity.

Posted on: January 12, 2017, 08:13:45 am
Here is my table.

It is not the best of my life but it works a priori. Just a little flawed but without short shorts.



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« Reply #385 on: January 12, 2017, 08:39:23 am »
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  I've really not followed the chance build much.  Nice looking Boards.  Everything I've seen on LCD requirement is it has to be Hitachi HD44780 compatible LCD.  

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https://www.google.com/search?q=+Hitachi+HD44780+compatible+LCD&ie=utf-8&oe=utf-8



I asked on GeoTech for conformation on the LCD.   

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http://www.geotech1.com/forums/showthread.php?23424-2nd-Chance-PI/page5



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« Last Edit: January 12, 2017, 09:01:32 am by homefire »
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« Reply #386 on: January 13, 2017, 08:07:22 am »
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   Two people on Geotech advise 16x2 Hitachi HD44780 compatible LCD is the requirement.  There are a million of them out there.  Cool


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« Reply #387 on: January 13, 2017, 07:08:59 pm »
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Thank you very much for helping myself, I am going to look for a screen following the advices. Great

On the other hand I am welding components and it me has arisen some doubts.

All the persons use ceramic condensers, I use of polyester.

Are they suitable to use polyester?

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« Reply #388 on: January 13, 2017, 07:43:05 pm »
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I would Prefer Poly over Ceramic any day in a Metal Detector circuit.  

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« Last Edit: January 13, 2017, 07:53:14 pm by homefire »
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« Reply #389 on: January 14, 2017, 12:49:51 am »
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Polys are OK except for the 2 x 22pf which need to be ceramic (xtal osc). Finally finished stuffing the board with parts. One need to closely looking @ the solder joints that they are not dry and or have bridges to adjacent pads. I used machine sockets for the IC's because it it becomes simple to replace any IC without damaging desoldering.

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