Power tool

A power tool, comprising:

• a function member, configured to realize a function of the power tool;
• a motor, configured to drive the function member;
• a driving circuit, electrically connected to the motor and configured to drive the motor;
• a first control module, configured to output a first control signal to the driving circuit, wherein the first control module has a first working state and a first failure state, the first control module is configured to, in condition that the first control module is in the first working state, output a first working signal, and the first control module is further configured to, in condition that the first control module is in the first failure state, output a first failure signal;
• and
• a second control module, electrically connected to the first control module, wherein the second control module is configured to receive the first working signal or the first failure signal from the first control module,
• wherein the second control module is configured to, in response to receiving the first failure signal from the first control module, output a second control signal to turn off the motor,
• wherein the first control module and the second control module are in communication connection to each other, the second control module has a second working state and a second failure state, the second control module is configured to, in condition that the second control module is in the second working state, output a second working signal to the first control module, the second control module is further configure to, in condition that the second control module is in the second failure state, output a second failure signal to the first control module, and the first control module is configured to, in response to receiving the second failure signal from the second control module, output a first control signal to turn off the motor, and
• wherein the first failure state is associated with the condition of at least one of a first switch or a first sensor and the second failure state is associated with the condition of at least one of a second switch or a second sensor.