user40324: I would like to ask you some helpful informations.
Recently I bought an OV7670 Camera Module.
Unfortunately, this item is not compatible with any tutorial I found in dozens and dozens of sites.
It has 18 pins with these signs:
3.3v   GND
SCL    SDA
VS     HS
PCLK   MCLK
D7     D6
D5     D4
D3     D2
D1     D0
RESET  PWDN

I aint noticed these pins on any OV7670 Camera in any site of tutorial, like youtube or arduino.cc or many others at google searching.
The most comon OV7670 Cameras I found in tutorials have SIOC SIOD instead of SCL SDA, HREF instead of HS and XCLK instead of MCLK.
Did I bought a fake or what do you think?
Please, if any of you, knows how to make it conect or have any useful link, I will apreciate to inform me.
Thank you all for your time.

user39658: They are actually named in a different manner. 
Your camera module has i2c interface.
SIOC is nothing but Serial Input Clock , same as SCL - i2c clock
Similarly , SDA and SIOD are the same - i2c data
HREF and HS are the same too - Hsync signal
MCLK and XCLK are the same too - system clock
Here is a useful link: 
https://www.google.co.in/amp/www.instructables.com/id/OV7670-Arduino-Camera-Sensor-Module-Framecapture-T/%3famp_page=true
Cheers ! 

40324: <p>I would like to ask you some helpful informations.</p>

<p>Recently I bought an OV7670 Camera Module.
Unfortunately, this item is not compatible with any tutorial I found in dozens and dozens of sites.</p>

<p>It has 18 pins with these signs:</p>

<pre><code>3.3v   GND
SCL    SDA
VS     HS
PCLK   MCLK
D7     D6
D5     D4
D3     D2
D1     D0
RESET  PWDN
</code></pre>

<p>I aint noticed these pins on any OV7670 Camera in any site of tutorial, like youtube or arduino.cc or many others at google searching.
The most comon OV7670 Cameras I found in tutorials have SIOC SIOD instead of SCL SDA, HREF instead of HS and XCLK instead of MCLK.
Did I bought a fake or what do you think?
Please, if any of you, knows how to make it conect or have any useful link, I will apreciate to inform me.
Thank you all for your time.</p>
 39658: <p>They are actually named in a different manner. </p>

<p>Your camera module has i2c interface.</p>

<p>SIOC is nothing but Serial Input Clock , same as SCL - i2c clock</p>

<p>Similarly , SDA and SIOD are the same - i2c data</p>

<p>HREF and HS are the same too - Hsync signal</p>

<p>MCLK and XCLK are the same too - system clock</p>

<p>Here is a useful link: </p>

<p><a href="https://www.google.co.in/amp/www.instructables.com/id/OV7670-Arduino-Camera-Sensor-Module-Framecapture-T/%3famp_page=true" rel="nofollow noreferrer">https://www.google.co.in/amp/www.instructables.com/id/OV7670-Arduino-Camera-Sensor-Module-Framecapture-T/%3famp_page=true</a></p>

<p>Cheers ! </p>
