code: def brake_on(self):
          
          data = []
          data.append(0x0A)
          data.append(self.servoid)
          data.append(RAM_WRITE_REQ)
          data.append(TORQUE_CONTROL_RAM)
          data.append(0x01)
          data.append(0x40)
          send_data(data)
docs: Set the Brakes of Herkulex
  
          In braked mode, position control and velocity control
          will not work, enable torque before that
  
          Args:
              none