Peripheral equipment for controlling camera arranged in a terminal, system and method thereof

A camera controlling apparatus, comprising:

• a telescopic support rod, the telescopic support rod having a hollow body and an electrical signal generator disposed inside;
• a terminal clamp, for holding a mobile device designed for a lightning earphone, mounted on the telescopic support rod;
• a trigger device, mounted on the telescopic support rod and connected to the electrical signal generator;
• and
• a lightning cable disposed inside and extending through the hollow body of the telescopic support rod, the cable having a first end for connecting to the mobile device held by the terminal clamp and a second end connected to the telescopic support rod, and for transmitting a digital control signal to the mobile device through the lightning cable,
• wherein the electrical signal generator includes a lightning audio module and an input pin connected to the trigger device, the lightning audio module communicates with the mobile device through the lightning cable, wherein the trigger device is a reset key, the reset key controls the digital control signal for controlling the camera mounted on the mobile device, wherein the reset key is pressed, the digital control signal changes from a low level to a high level.