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HiLetgo OV7670 640X480 0 3Mega Arduino Review

3

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Very good

Revainrating 4.5 out of 5  
Rating 
4.5
🖥️. Single Board Computers, 💻 Computer Components

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Description of HiLetgo OV7670 640X480 0 3Mega Arduino

Resolution 640x480 VGA. IO voltage 2.5V to 3.0V (internal LDO power supply to the core 1.8V). Power operation 60mW/15fps VGAYUV. Automatic influence control functions include: automatic exposure control, automatic gain control, automatic white balance, automatic elimination of light streaks, automatic black level calibration, image quality control including color saturation, hue, gamma, sharpness ANTI_BLOOM. RawRGB, RGB (GRB4:2:2, RGB565/555/444), YUV(4:2:2) and YCbCr(4:2:2) output formats

Reviews

Global ratings 3
  • 5
    1
  • 4
    2
  • 3
    0
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

Great Single Board Computer for Arduino Projects

I recently purchased this SBC and have been extremely impressed with its capabilities. Thanks to my knowledge gained in practice with other single board computers, I was able to easily set up and start using this board with my Arduino projects. The image quality from the OV7670 camera module is fantastic and the 640x480 resolution is more than enough for my needs. Highly recommend for anyone interested in exploring computer vision projects with their Arduino.

Pros
  • High-quality camera module, easy to use with Arduino
Cons
  • None observed

Revainrating 4 out of 5

VGA electronics only

VGA resolution is the upper limit. So the low cost should not lead to high expectations. But too many pins (no modular ribbon cable mount) and specialized libraries make this device only suitable for specialized machine vision (bulk image recognition) specialists. Arduino support is very poor; There are better libraries for MicroPython. Arduino encourages MIT processing to display the output, but of course, despite sharing a heritage (like Java), technical support is limited.

Pros
  • Resolution 640 x 480 VGA
Cons
  • Not as thick as other options

Revainrating 4 out of 5

Quality control of computers and accessories

One of them The modules have a solder ball on the PCLK lane. The other module seems to be fine. I'll update my review once I've taken some pictures of it. Update: Both camera modules work. The documentation is even worse. The default color settings do not work correctly. The secret of YUV with correct colors is to write address 0xB0 with 0x84 (it's a reserved register. I have no idea what it does). I used these coefficients to convert YUV to RGB r = y + 1.371 * (v-128); g = y - 0.698 * (v-128)…

Pros
  • Output formats RawRGB, RGB (GRB4:2:2, RGB565/555/444), YUV(4:2:2) and YCbCr(4:2:2)
Cons
  • Almost never