Using OV7670 camera module in UNO or Mega

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1

Hi guys,

i'm looking for using ov7670 in UNO or mega. especially in UNO. i've already read :
http://forum.arduino.cc/index.php/topic,159557.0.html (from Mr_Arduino) and also GitHub - dalmirdasilva/ArduinoCamera: A set of camera driver drivers for Arduino. some camera library for arduino.

but i still don't understand, how to use the library? Can someone give me some example sketch using Arduino IDE? i'll be very thanks.
in my project i want to get the picture bytes in jpeg (RGB565, 640x480) and stream it to TFT lcd with 30fps.

2

That module allows for a single picture, maybe every 30sec! Movie.. FORGET IT
If the cameraboard doesn't have the AL422 memorychip onboard, it's useless without
the additional 'arducam' shield..

3

The ov7670 does not support jpeg output. Also one image every 30 seconds is a huge exaggeration. Even with the 8bit based arduinos you can do better than that. Also the ov7670 is a Soc it can do processing including resizing so if frame rate is desired but not resolution you could downscale the images. Also the code you posted does not appear to truly support the ov7670. Why not use my code instead.
Here is complex example that runs on the arduino mega and features a tft screen GitHub - ComputerNerd/arduino-camera-tft: Arduino Mega 2560 code that uses either an OV7670 or an MT9D111 to display an image on a TFT LCD screen with SD card support.
Here is a simple example that runs on the arduino uno and uses external spi ram and sends the data to your PC using serial communications. GitHub - ComputerNerd/ov7670-simple: This is a simple sample code of the ov7670 on the arduino uno sends data over serial.

4

Thanks for your suggestions Mr_Arduino and knut_ny. Can I get some schematic to connect spi ram, camera, etc?

5

I will try and get to that at some point.

6

Did you read all of Mr Arduino's enormous long thread ?

7

michinyon:
Did you read all of Mr Arduino's enormous long thread ?

If you mean at the first, yes. But why?

8

If you mean at the first, yes. But why?

Because the answer to your question is already in there.

9

michinyon:

If you mean at the first, yes. But why?

Because the answer to your question is already in there.

I'm sorry if I disturbed you by this topic. I know you and Mr Arduino already discussed this topic before. But I still don't understand about your conversation with Mr Arduino. So I re-post this topic and hope one of you answer my question. Mr Arduino already answered my question and gave me a super simple sketch about ov7670 in uno.
I hope you understand. I'm still newbie in image processing.

10

Hi Mr Arduino, can i continue this post? i've understand a little bit of your code at github. i found one of your discussion with
firashelou in 2013. So the basic is, i need to use your i2c/twi libary to communicate register of ov7670 fifo, and use some of your header file, right? So i decided to continue this project and bought an ov7670 with fifo v2.

Here is the camera Microsoft OneDrive - Access files anywhere. Create docs with free Office Online.

Can i get help for the next step how to capture the data from camera? did i need to use 74hca125 with the ov7670 fifo . alot of thanks. :slight_smile:

11

how to wiring with card arduino?

12

I am lost. I read ComputerNerd in Github and all I found in there is in C language, but there are not *.ino files for Arduino IDE to be compiled and up-loaded. So... how do you get this on the arduino mega ?

13

It is better to giveup wit Mega. It has 5V on I2C inteface. It burns OV7670.
You can yse my env with Uno/Nano or Due:
http://privateblog.info/arduino-due-i-kamera-ov7670-primer-ispolzovaniya/
http://privateblog.info/arduino-uno-i-kamera-ov7670-primer-ispolzovaniya/

14

I have an arduino uno and a module OV7670 with fifo, I would like to transmit video image through internet shield W5100 to my computer. Anyone have any idea how to do this?

15

HI,

Can anyone help me get colored images out of OV7670.I could only get B&W images.
Thanks,
Geeth.