Abstract: An actuating and sensing module is disclosed and includes a bottom plate, a gas pressure sensor, a thin gas transportation device and a cover plate. The bottom plate includes a pressure relief orifice, a discharging orifice and a communication orifice. The gas pressure sensor is disposed on the bottom plate and seals the communication orifice. The thin gas transportation device is disposed on the bottom plate and seals the pressure relief orifice and the discharging orifice. The cover plate is disposed on the bottom plate and covers the gas pressure sensor and the thin gas-transportation device. The cover plate includes an intake orifice. The thin gas transportation device is driven to inhale gas through the intake orifice, the gas is then discharged through the discharging orifice by the thin gas transportation device, and a pressure change of the gas is sensed by the gas pressure sensor.

Abstract: An information input and output device comprises a casing, an outer ring body, a magnetic wheel and an encoding module. The casing comprises an annulus sidewall and a base. A first surface of the outer ring body is close to the annulus sidewall. A single groove of the outer ring body is formed on the first surface. The magnetic wheel is fixed into the groove. The outer ring body and the magnetic wheel are rotatably disposed around an outer wall surface of the annulus sidewall. The encoding module comprises a circuit board and an information processing unit. When the outer ring body is rotated, the information processing unit is configured to detect a number of times and a direction in changes of the magnetic field of the magnetic wheel and convert the detected results into a position information and a direction information.