my cam.modules: ov7670 & ov2640
ov7670: ov2640: ov2640: Red board, without MCLK pin. remark: This ov2640 module have built-in 12M X'tal, so no MCLK pin in the header. Exercise: ~ ov2640 (Red board without MCLK) on Raspberry Pi Pico/CircuitPython (7 & 8 Beta)