One: This board has been welded with the cable before leaving the factory, and it can be used after receiving the goods and plugging in the camera. No additional power supply is required!
Two: There is an external control interface, users can diy welding, use switches, pwm level, other brands of remote controls, receivers, optocouplers, relays, etc. to control the trigger!
Three: The functions are: focus, camera, switch, zoom, video.
Four: The chip can be sold separately, which is convenient for users to make pcb board patch or install it in the shell.
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