Arduino Forum

Topics => Robotics => Topic started by: rbangar30 on Oct 05, 2012, 12:21 pm

Title: Interfacing arduino with ov7670
Post by: rbangar30 on Oct 05, 2012, 12:21 pm
Hello all,
I am trying to capture image from ov7670 (http://dx.com/p/ov7670-300kp-vga-camera-module-for-arduino-147742) using arduino.
Please help me in my task.
Thanks in advance!!!!
Title: Re: Interfacing arduino with ov7670
Post by: PaulS on Oct 06, 2012, 02:55 pm
What have you tried?

What do you intend to do with the data if you are successful in collecting it?

I think that if those (expletive deleted) cheap skates are going to claim that the camera is Arduino compatible, they should provide a library and sample sketches. Otherwise they are just lying cheats.
Title: Re: Interfacing arduino with ov7670
Post by: rbangar30 on Oct 08, 2012, 09:38 am
I want to save it on SD card.
Title: Re: Interfacing arduino with ov7670
Post by: guix on Oct 10, 2012, 02:55 am
Look this website, download the library and try :)

http://www.arducam.com
Title: Re: Interfacing arduino with ov7670
Post by: gregio on Nov 08, 2012, 12:31 am
Did youo figure something about ir?
Title: Re: Interfacing arduino with ov7670
Post by: ardufans on Dec 08, 2012, 01:33 am
It seems that they have add support for MT9D111 camera module, Great! :)
http://www.arducam.com/camera-modules/2mp-mt9d111/
http://www.arducam.com/download/
Title: Re: Interfacing arduino with ov7670
Post by: max3221 on Jan 07, 2013, 11:38 am
ok...

so.. it is not possible to connect the OV7670 module directly to the Arduino Board... it needs the ArduCAM module...

is it?..  :.
Title: Re: Interfacing arduino with ov7670
Post by: Gre3nLioN on Mar 09, 2013, 01:22 am
Hi, I have the same problem, how to connect this camera to arduino?!!!

And I discovered this:
http://qrfnfgre.wordpress.com/2012/05/07/ov7670-camera-sensor-success/

That it's a realy good job of this guy, and the best, he recomend this link:
http://mbed.org/users/ms523/notebook/ov7670-camera/

Here the guy explain how to connect the camera to the arduino, and make one test with it and a TFT display, and give the code for anyone can test, this it's realy usefull

I discovered this too:
https://gist.github.com/freespace/2585921

This look like a testing code, but we have to read and understand what it's realy, so it's more heavy

I hope I can help you.

Good luck
Title: Re: Interfacing arduino with ov7670
Post by: Mr_arduino on Apr 10, 2013, 08:23 pm
Sorry for the bump but this is the first thing that appears on google.
I got my arduino uno to save a 640x480 image to an sd card read how I did it plus sample code at http://arduino.cc/forum/index.php/topic,159557.0.html
Title: Re: Interfacing arduino with ov7670
Post by: emueyes on Apr 25, 2013, 04:21 am
A very n00bie question, the OV7670 uses 3.3V and I want to use a (5V) UNO with it. How do I go about doing that? I have seen 3.3V power supplies on eBay, but there seem to be a few different level shifters, too, and things like the 74HC245. What's the recommended way of doing this?
Title: Re: Interfacing arduino with ov7670
Post by: guix on Apr 25, 2013, 06:09 am
Hello :)

Don't you have a 3.3V output pin on your Uno ?
Title: Re: Interfacing arduino with ov7670
Post by: emueyes on Apr 25, 2013, 07:50 am
Hi

Yep, I have a 3.3V output on the Arduino but I didn't think that would supply enough current to power the camera. Also, the data signals for the OV7670 are all 3.3V if I understand correctly, and I imagine would be hurt by the 5V Arduino signals. These are the sorts of things I'd seen

http://www.ebay.com/itm/INBOARD-LOGIC-LEVEL-SHIFTER-3-3-5V-with-74LCX245-/120544493495?pt=LH_DefaultDomain_0&hash=item1c1102ffb7

and I was wondering if that's what's needed, or if I could just use a (for example) 74HC245.
Title: Re: Interfacing arduino with ov7670
Post by: CrazyCreator on Jun 20, 2013, 05:00 pm
You could use the 245 for level shifting down. IMO, just connect the data out of the camera right to the Arduino inputs and the data outputs from the Arduino to a 10k/20k resistor voltage divider.

You can certainly power the camera from the 3V3 out. The Arduino has a separate regulator for it, which should source enough current.
Title: Re: Interfacing arduino with ov7670
Post by: relic1974 on Sep 22, 2013, 09:44 pm

ok...

so.. it is not possible to connect the OV7670 module directly to the Arduino Board... it needs the ArduCAM module...

is it?..  :.



It seems to me by examining the arduCam shield that it's simply using either an ARM processor, FIFO memory or both to simply  buffer the image data, then send it via SPI to the arduino.  so it appears that it 'should' be able to connect the camera directly without the shield.  I've looked thru all of the arducam library code looking for hints of what arduino pins are used for the mega boards but didn't find any defines or pin configuration.  I want to try this library first, but was wanting to know if ANYONE knows how to connect the camera module directly to the arduino mega pins.  A wiring diagram would be even better.  I plan on driving the camera's XCLK pin with a 16mhz crystal.  also I read on several forums something about using pullup resistors on the SPI or MOSI/MISO pins but not sure why.  is there any info or advice on this matter?  any help would be appreciated and I would be happy to share my results if I get it working
Title: Re: Interfacing arduino with ov7670
Post by: CrazyDrones on Jul 09, 2014, 10:14 pm
This link might help.  :)

http://embeddedprogrammer.blogspot.com.br/2012/07/hacking-ov7670-camera-module-sccb-cheat.html
Title: Re: Interfacing arduino with ov7670
Post by: medphysik on Sep 13, 2014, 01:39 am
There is a lot of commentary on how to connect the ov7670, however,  I am looking for ways to collect the camera's data and display in onto my computer in quicktime.  Any suggestions?
Title: Re: Interfacing arduino with ov7670
Post by: dasaki on Oct 01, 2014, 11:02 am

There is a lot of commentary on how to connect the ov7670, however,  I am looking for ways to collect the camera's data and display in onto my computer in quicktime.  Any suggestions?


Hi,

I guess your platform is a Mac. Are you using a module with or without FIFO? Why do you want to get it working specifically with quicktime?
I'm working to put together my experiencies, info and code in a new web (it will be called arduvision.com (http://arduvision.com)), it is still work in progress. In the meanwhile, I've recently published in my blog (therandomlab.com (http://therandomlab.com)) some info and code of my setup, streaming 80x60 frames to a processing.org sketch via usb.
I'd love to get feedback of people reproducing my setup and solve any possible doubts/issues.
Title: Re: Interfacing arduino with ov7670
Post by: erummumtaz on Nov 15, 2015, 09:23 pm
HI!
I need help to connect OV7670 Camera without FIFO and save images in SD card using Arduino MEGA2560.
Title: Re: Interfacing arduino with ov7670
Post by: rawia on Jun 02, 2016, 01:56 pm
Salam , dans le cadre  de mon  projet de fin d'étude, s'il vous plaît, j'ai un module de caméra OV7670 j'ai essayé de le programmer avec l'Arduino UNO mais j'ai eu un problème, je ne peux obtenir aucune image Je vous demande , svp ,si quelqu'un a une idée sur ce module camera?? Pouvez vous me donner un montage (correct) et aussi un code pour le faire fonctionner. merciii
Title: Re: Interfacing arduino with ov7670
Post by: Rupert909 on Jun 02, 2016, 02:29 pm
What have you tried?

What do you intend to do with the data if you are successful in collecting it?

I think that if those (expletive deleted) cheap skates are going to claim that the camera is Arduino compatible, they should provide a library and sample sketches. Otherwise they are just lying cheats.
Totally agree. I have one of those, as I wanted to read single scan-lines for the camera, for machine vision purposes, but the thing grew horribly complex. I might give it another go some time, but for image processing I will probably prefer using the Raspberry, whose camera worked out of the box, command-line interface at the ready.

Luckily the camera was cheap. Still not worth its cost.
Title: Re: Interfacing arduino with ov7670
Post by: Ramin985 on Oct 06, 2017, 01:12 pm
Hi all,

I already bought a 24 pins OV7670 camera module (640x480 Pixel lens OV7670 CMOS Camera Module+24p Socket 2.5V-3.0V).But I cannot find its datasheet. Today, I found another module on the internet named "Waveshare OV9655 Camera Module" which very much looks like OV7670 module.

It would be my pleasure if someone has any experience working with those modules, share them with me and let me know if the both module are the same. I mean can I use the datasheet of OV9655 for 24 pins OV7670?

Thank you in advance for your help and reply.