Temperature sensing device capable of automatically switching mode and method thereof

A method of automatically switching operational mode, applied to determine whether a temperature sensing device is selectively to enter a first mode or a second mode or to leave from the first mode or the second mode, the method comprising:

• providing a detection unit in the temperature sensing device;
• detecting by the detection unit when the temperature sensing device is shaked by a user under the first mode, and then enable a control unit to determine that the temperature sensing device is to leave from the first mode and execute a power-on process;
• and
• detecting by the detection unit whether the temperature sensing device is shaked by the user after executing the power-on process, and then enable the control unit to determine that the temperature sensing device is to return the first mode or enter the second mode.

A method of automatically switching operational mode, applied to determine whether a temperature sensing device is to enter or leave from a first mode or a second mode, and the method comprising:

• providing a detection unit in the temperature sensing device, wherein a change in voltage level on a pin of a control unit is associated with a shaking state of the temperature sensing device detected by the detection unit;
• according to the change in the voltage level on the pin under the first mode, determining, by the control unit, whether the temperature sensing device is to leave from the first mode and execute a power-on process;
• and
• according to the change in the voltage level on the pin after executing the power-on process, determining, by the control unit, that the temperature sensing device is to return the first mode or enter the second mode.