| 摘要 |
A camera includes a power supply, a microcontroller having a timer, and a multimode power button capable of being actuated for an actuation time. When the camera is off and the button is actuated, the microcontroller turns the camera on. When the camera is on and the button is actuated so the actuation time is shorter than a threshold time, the microcontroller changes a mode of the camera. And when the camera is on and the button is actuated so the actuation time is not shorter than the threshold time, the microcontroller turns the camera off.
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