I am trying to play with that sensor. It uses i2c or so called sccb bus.
I was able to use i2c in many other sensors like accel, gyro and everything worked fine for me.
But the I trying to read with i2c the ov7670 sensor, I dont get the id number.
Maybe somebody has figured out, what is the main difference between standart i2c and sccb bus?
and what frequency I should use? Standart i2c uses 400kHz I think.
SCCB specification is located here: