GPRino

Description

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.

Files

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

Download

Software v3.zip

Arduino and PC (made in LabVIEW 2013) source codes

x-zip-compressed - 870.05 kB - 08/30/2021 at 13:39

Download

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

Download

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

Download

RF (GPR_RF) board.zip

OrCAD 9.2 design files and Gerber for Radio Frequency board

x-zip-compressed - 145.65 kB - 05/24/2022 at 14:50

Download

Components

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

Project Logs

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19.10.2020
Mirel Paun • 10/19/2020 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 Paun • 10/08/2020 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

Build Instructions

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Board stack

Board stack in box

This is how the electronic boards are stacked.

RF (GPR_RF) board top

Discussions

saminzarif01 wrote 08/21/2023 at 18:32

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

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

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

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

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

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ULSO wrote 02/16/2023 at 22:47

Hi!

Is there anychance that i could buy this from you?

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bazoozoo wrote 02/11/2023 at 18:19

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

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

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

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

@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

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

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

use Matlab spectogram

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JungleAnonymous wrote 02/08/2023 at 09:54

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

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

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

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

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

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

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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nouh wrote 12/16/2022 at 23:37

20/30

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Piyaldasanayaka1118 wrote 12/03/2022 at 05:49

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

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

;

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

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

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adelangel wrote 06/17/2022 at 03:51

can anyone tell me they created this in the states

Thanks

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sultanbaybars wrote 05/18/2022 at 16:31

can you please add a gerber file for pcb printing

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sultanbaybars wrote 05/18/2022 at 16:29

CAN YOU PLEASE ADD A GERBER FILE

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Duane C. Johnson wrote 04/12/2022 at 22:27

Hi Mike;

Just a thought:

Do you think most of the RF and display functions could be performed using the very cool "tinySA" spectrum analyzer, (about $70 us)?

It has a built in RF output port that can track, with or without offset, from the input port. It can be controlled through a USB cable and display on a PC.

redrok

redrok@redrok.com

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GPRino

Description

Details

Files

Antennas.zip

Software v3.zip

PCB_Construction.zip

LF (GPR_JF) board.zip

RF (GPR_RF) board.zip

Components

Project Logs

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19.10.2020

08.10.2020

Build Instructions

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Discussions

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