Electric power tool and method for operating the same

An electric power tool, comprising:

• a wireless module, adapted to receive a wireless signal having a plurality of control parameters from the outside and to output the plurality of control parameters, wherein each of the plurality of control parameters includes a stage and a torque value corresponding to the stage, and the torque values corresponding to each of the stages are different;
• a controller, electrically connected to the wireless module and adapted to receive the plurality of control parameters from the wireless module and to store the plurality of control parameters into a memory;
• a stage-selection module, electrically connected to the controller and adapted to be operated to generate a stage-selection signal to be transmitted to the controller, wherein the stage-selection signal is corresponding to a stage which at least one of the plurality of control parameters belongs to;
• the controller selects the at least one of the plurality of control parameters in accordance with the stage-selection signal after receiving the stage-selection signal;
• a trigger switch, electrically connected to the controller and adapted to be triggered to generate a triggering signal to be transmitted to the controller, wherein after receiving the triggering signal, the controller outputs a control signal based on a torque value of the at least one of the plurality of control parameters which is corresponding to the stage-selection signal;
• a driver, electrically connected to the controller and adapted to receive the control signal from the controller so as to generate a driving signal;
• and
• a driving motor, electrically connected to the driver, and adapted to receive the driving signal and to run in response to the driving signal.