Arduino metal detector?

[Rodelio]

FoxyPi hex file working in a little island in center of america
I don,t know how to upload videos, so i post a screenshot from my samsung cellphone..

[Rodelio]

In the picture of the post 247, There's only need a non polarized capacitor 1 to 4.7 uF conected from pin 8 to Ground. "Pin 8 to 9"

[Rodelio]

Hi Foxy. I glad you like it. Xloader work fine. You can load hex files in many formats like txt, and write ATMEGA using any Arduino. By the way, mi display is ready and i already load your MD hex file sussefull. I have tu cut it from the board of old nikia cell phone. Here it's hard to find some electronics parts and now more due to Covid-19. Hope you and all here in this forum are all right...

[FoxyLab]

Xloader software

Thanks for information! An interesting analogue of avrdude.

[Rodelio]

Now only need time for build the PCB and write the atmega. I will doit with arduino uno as ISP and Xloader software. It work on the felezjoo projet with no problems. Any progres i will post.

[Rodelio]

This is the front view of the display. The order of pin conecction change when we put display upside down.

[Rodelio]

5

[Rodelio]

At last i recived the lcd from my friend. No red, no blue one. I had to cut it directly from the board of nokia cellphone. I already make the conections and is ready to work.

[FoxyLab]

This is the blue one...[ATTACH]50848[/ATTACH]

It is not a matter of the order of the contacts; they are easy to identify by labels. I only work with blue indicators, so I can’t check this statement - supposedly the red ones are supplied with ground, but not power, to LED pin.

[Rodelio]

This is the blue one...

[Rodelio]

Hola FoxiLab. In fact, the pinout in boards blue and red have diferent order. I still don't know the color of the textolite of the display that have mi friend but i have the data of both LCDs

[FoxyLab]

Hi FoxiLab. Thanks for the information. Now i know were to find it. By lucky a friend of mine have one of this display at work. As soon i get it in my hands, i will star this proyect. Thank for share your MD here in the forum and for the support... I am from Cuba, Central America.

Hola, Rodelio! There are two options for such a display - with blue and red textolite. I use with blue. According to unverified information, "red" has a different backlight connection.

[Rodelio]

Hi FoxiLab. Thanks for the information. Now i know were to find it. By lucky a friend of mine have one of this display at work. As soon i get it in my hands, i will star this proyect. Thank for share your MD here in the forum and for the support... I am from Cuba, Central America.

[FoxyLab]

Hi FoxiLab. Very nice proyect. Congratulations.
I have a doubt abuot the LCD. Wath model of nokia cellphone use this display?. May i use some similar or compatible lcd ?. Thanks in advance.

Hello, Rodelio!
Thanks!!!
This LCD was used, for example, in Nokia 5110. But now getting this LCD from of the phone is troublesome. These screens are offered on ebay and Aliexpress.
For example:
https://www.ebay.com/itm/84x48-Nokia-LCD-Module-Blue-Backlight-Adapter-PCB-Nokia-5110-LCD-For-Arduino-NEW/262841242527
https://aliexpress.ru/item/4000849633010.html

[Rodelio]

Hi FoxiLab. Very nice proyect. Congratulations.
I have a doubt abuot the LCD. Wath model of nokia cellphone use this display?. May i use some similar or compatible lcd ?. Thanks in advance.