OV7670 WITH FIFO CAMERA MODULE
A FIFO, is a buffer, you can kind of think of it like RAM, and the way it works is you can take a picture, and instead of trying to receive it directly on the arduino, the data gets sent to the FIFO.
Then, you can read the FIFO from your arduino, as fast, as you want.
You can send a command to the camera to take a picture connecting via I2C
For the FIFO, it is a parallel data bus, so it just means connecting the D0-
The AL422B is a First-
The AL422B consists of 3Mbits of memory,and is configured as 393,216 words x 8 bit FIFO (first in first out).
24MHZ active crystal oscillator
OV7670 2.8 V voltage stabilization LDO
Single work power 3.3 V (+ / -
Focal length of the lens 3.6 millimeters 650nm bands
Supports illumination applications for high sensitivity
Supports compensation losing light
50/60 Hz automatic detection