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GPRino

Ground Penetrating Radar using Arduino

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This project developed a very low cost (under 300 USD components cost) Ground Penetrating Radar. The acquired data can be visualized onboard, in real time, as well as stored and transferred to a PC for further processing.
The digital section uses an Arduino Mega 2560 board.
The onboard visualization uses an LCD shield for Arduino Mega 2560.
The analog section is custom built.
The frequency range is 323 MHz - 910 MHz.

The construction and software files contain the complete information for building the project.

Software v3.zip

Arduino and PC (made in LabVIEW 2013) source code

x-zip-compressed - 900.80 kB - 02/11/2024 at 19:57

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Operation_instructions.txt

Operation Instructions

plain - 1.26 kB - 10/21/2023 at 18:23

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Antennas.zip

Antennas - New version of antennas, must be printed on double-sided PCB FR4 laminate size A4 (210 x 297 mm)

x-zip-compressed - 361.52 kB - 08/30/2021 at 13:46

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PCB_Construction.zip

PCB images in PDF for Toner Transfer PCB construction (Top layer mirrored), and schematics

x-zip-compressed - 2.03 MB - 05/24/2022 at 14:49

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LF (GPR_JF) board.zip

OrCAD 9.2 design files and Gerber for Low Frequency board

x-zip-compressed - 344.98 kB - 10/21/2020 at 12:02

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View all 9 files

  • 1 × Arduino Mega 2560
  • 1 × LCD TFT 3.2 inch + slot sd card Uses HX8357 chip
  • 1 × JTOS-850VW+ VCO
  • 1 × PAT-10+ RF Attenuator
  • 2 × PSA4-5043+ LNA

View all 49 components

  • 19.10.2020

    Mirel Paun10/19/2020 at 14:14 0 comments

    System tested on a bridge. This is the GPR image obtained for the bridge in the photo:

  • 08.10.2020

    Mirel Paun10/08/2020 at 16:03 0 comments

    System tested and works fine.

    Antenna coupling is quite high. Would be nice placing the antennas at a bigger distance from each other, or using more directive antennas in order to reduce unwanted coupling.

View all 2 project logs

  • 1
    Board stack
  • 2
    Board stack in box

    This is how the electronic boards are stacked.

  • 3
    RF (GPR_RF) board top

View all 9 instructions

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Discussions

JungleAnonymous wrote 02/19/2024 at 16:09 point

Good evening, I noticed in the diagram the components LMV772 and MCP4725, in the photos the 772 has 6 pins but they only exist at 8 pins.. while the MCP4725 has 8 pins in the photo but I can only find them at 6 pins.. what was mounted on the card instead of the ones in the diagram? can someone help me? what did you mount on the card? do you have any alternatives for me? Thank you.

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hamidullahhasin62 wrote 02/11/2024 at 13:41 point

Hello everyone, my name is Hamdallah, I am from Afghanistan, thank you for sharing your project
I have a problem in the uploading part of the program and an error during uploading. includ Arduino fft.h. I couldn't do anything with all my efforts

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hamidullahhasin62 wrote 02/11/2024 at 13:40 point

Hello everyone, my name is Hamdallah, I am from Afghanistan, thank you for sharing your project

I have a problem in the uploading part of the program and an error during uploading. includ Arduino fft.h. I couldn't do anything with all my efforts

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Francisco wrote 09/25/2023 at 21:14 point

Hi,

What is the license of the project, I mean, could I reproduce it (or part) for educational and non commercial purposes?

BR,
Francisco

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saminzarif01 wrote 08/21/2023 at 18:32 point

Can anyone please tell me the purpose of the GPR_JF board?? What does it do??

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aksuerdogan79 wrote 08/10/2023 at 18:47 point

Hello. Can you post all the documentation of this GPR project? I need inter-board connection project.
thanks.

aksuerdogan79@gmail.com

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aksuerdogan79 wrote 08/10/2023 at 18:46 point

Hello. Can you post all the documentation of this GPR project? I need inter-board connection project.
thanks.

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muja22h wrote 07/04/2023 at 11:52 point

hi i am doing this project and i am stuck with antenna part , idk how to do it! if anyone can help that will be amazing.

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hectorcarrizo700 wrote 05/01/2023 at 18:36 point

Hi , I would like buy also all the project  from you ?

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ULSO wrote 02/16/2023 at 22:47 point

Hi!

Is there anychance that i could buy this from you?

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bazoozoo wrote 02/11/2023 at 18:19 point

Smaller compact Vivaldi array to try  https://imgur.com/a/zWIoyvj

the dimensions are 130mm x 120mm x 20mm for the dual substrate (idea is to use 2 single sided pcbs with epoxy filling in between, maybe expandite foam {lightweight} ) . or just use standard double-sided pcb. BW= 250 - 10000 MHz Gain ~17dB.

You can read more on Vivaldi antennae here & have fun making your own to suit your purpose.

https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=9017985

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bazoozoo wrote 02/23/2023 at 09:59 point

In the range. https://bit.ly/uwbant  (colour black) & https://bit.ly/730MHzuwbant (colour blue)

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bazoozoo wrote 03/02/2023 at 13:08 point

Keen on doing your own, you must understand about the substrate (FR4 or similar ~120mm ~130mm cost is around ~$700 & you need 2 of them (antennas), here, just quickly with pictures, https://imgur.com/a/e4Y8KRC .

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muja22h wrote 07/04/2023 at 11:52 point

hi i am doing this project and i am stuck with antenna part , idk how to do it!
if you can help that will be amazing 
also you provide an link "https://imgur.com/a/zWIoyvj" i cant find the sizes to create the pcb

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bazoozoo wrote 02/11/2023 at 05:41 point

@miricip  This project right to go, I have found board shop that will make the RF&LF board for me (i could do myself but lack the time etc.) They will assemble also, so it`s just a matter of connecting to the arduino mega. roughly quoted @ 100usd per board just upload the 2 zip folders LF & RF. (https://bit.ly/project_pcbs). Someone else stated/questioned the 100k pot, doesn`t quite match the silkscreen. albeit, one of the resistors {2 in that group of components} (which one) could be replaced with a variable resistor (make an earth connect) right?.  

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dobrink wrote 06/07/2023 at 15:29 point

Did you have the boards built and assembled? How did that go? What was your solution for the Vivaldi array?

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bazoozoo wrote 02/09/2023 at 13:33 point

Hi any other visualization software work with this? labview2013 not obtainable even on community download. OR VI converter? . looked at snuffler (works with gradiometer well) and https://www.gpr-archaeology.com/software/  but as I haven`t built it yet IDK. thanks

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masoud.dop wrote 02/22/2023 at 22:52 point

use Matlab spectogram

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JungleAnonymous wrote 02/08/2023 at 09:54 point

Hello, I would like to make the project, but I can't find some things in the diagrams, 1) how the LF board is attached to the Arduino.. on which pins?  2) I see 4 resistors under the Arduino, where are they soldered?  3) in the photo of the LF card there is a 100k potentiometer that I can't find in the diagram.. can anyone help me?  I would be grateful to you.. nev100celle@hotmail.it

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bazoozoo wrote 02/11/2023 at 06:30 point

1) https://imgur.com/a/1kmBsni

https://imgur.com/a/OAb3t9X

2) check the connection image, connect diag. png in the list of 8 files. (digital pins 3,5,6,7 )

3) quizzing that myself, swap a static resistor for adjustment perhaps, there`s 2 in that area going by the silkscreen, on the picture i see variabe resistor 3 legs, looks like only 2 are used, go with the schematic /bom values & silk placement perhaps?

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Bachirbennaoui wrote 02/02/2023 at 19:49 point

هذا رائع و جيد جدًا - الرجاء المساعدة في إرسال صور للوحات الإلكترونية من الأعلى والأسفل

BACHIRBENNAOUI154@GMAIL.COM

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Bachirbennaoui wrote 02/02/2023 at 19:43 point

Thank you Can you add the gerber file for the pcb print please

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Signa wrote 12/10/2022 at 10:19 point

Ciao Mirel, great project!!! I am  trying the setup, but before spending on  double side PCB i am simulating antipodal Vivaldi antennas radiation pattern. In that sense, even if shape is clear from file,  would be great to have some clarification on antenna geometry, specifically on its dimension. Also it is not very clear from the gallery if PCB used is flexible and the antennas best position. Can you please help us somehow with more detailed picture/scheme or something else?

Thank you a lot and again, my compliment for the incredible project !!

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nouh wrote 12/12/2022 at 01:40 point

hello . 

making antipodal vivaldi antenna for this project

https://www.youtube.com/watch?v=hus-xqW976A&ab_channel=Noahskills

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Signa wrote 12/14/2022 at 09:26 point

great video Nouh, if i can ask to you, what are dimension of double sized PCB you used? 15cm x 25cm...

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recompiller wrote 02/12/2024 at 20:30 point

your link is not alive, renew plz

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nouh wrote 12/16/2022 at 23:37 point

20/30

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Piyaldasanayaka1118 wrote 12/03/2022 at 05:49 point

Sir, how do you make a 3d that tries to take care of things under the ground.  Please make something like that.  It is very valuable.. diagrams and.  Will you make a video showing all the equipment... we hope.  For example, secret imager 3d, (uxo mini underground imaging detector), easy way detector, produced by Adrenaline Company, can be named...they are umbrellas.  Easy to use.  How to make such a device.. Do the project and show it.  Good luck to you, happy for you.

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mshahvali2369 wrote 08/01/2022 at 21:29 point

new verjen gpr  who is make new ediyt shomatic or circuit ican not find ic stjtos850vw

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Piyaldasanayaka1118 wrote 12/03/2022 at 06:19 point

;

LKR 16,382.49  10%OFF | Free shipping  JTOS-850VW BK377 400-850MHz
https://a.aliexpress.com/_mrmYus4

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mshahvali2369 wrote 08/01/2022 at 21:25 point

Are you can help me cod and pdf gpr send for me

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