Abstract: A soldering iron tip includes a mounting portion to be connected to an soldering iron, and a U-shaped tip. The tip includes a connecting plate connected to the mounting portion and two tip portions extending from opposite ends of the connecting plate. The tip is made of material, which is resilient, heat conductive, and having a high temperature resistance.

Abstract: A method executes a gyroscope and an accelerometer function to unlock a portable electronic device. A user can rotate the portable electronic device to set a predetermined rotation direction, a predetermined rotation angle, and a predetermined accelerometer for unlocking the portable electronic device. In an unlock procedure, the gyroscope and the accelerometer detect the rotated portable electronic device and outputs detected information of the portable electronic device. If the rotation direction, the rotation angle, and the acceleration are the same as the predetermined rotation direction, the predetermined rotation angle, and the predetermined acceleration, respectively, the locked portable electronic device is unlocked.

Abstract: A method executes a gyroscope function to set unlock method for a portable electronic device. A user can rotate the portable electronic device to set a predetermined rotation direction and a predetermined rotation angle for unlocking the portable electronic device. In an unlock method setting procedure, the gyroscope detects the rotated portable electronic device and outputs detected information of the portable electronic device. An unlock method of the portable electronic device is set according to the detected information.

Abstract: A fastening device for cables includes a fastener and two pivot members. The fastener includes a base body defining a through slot, and a belt extending from the base body. An engaging portion extends from a top wall bounding the through slot. A bottom of the engaging portion defines a number of latching slots. A number of latches are formed on the belt. The belt can be bent, with a distal end of the belt away from the base body extending through the through slot. Thus, the cables are bundled tight between the top of the base body and the belt. The latches engage in the latching slots. The pivot members are pivotably connected to opposite sides of the base body. The pivot members are operable to rotate to force the engaging portion to move up.

Abstract: A motion sensing device includes a sensing chamber including at least one group of sensing surfaces, a signal generator, a sensing body and at least one elastic assembly corresponding to each group of the sensing surfaces. Each group of sensing surfaces includes two opposite sensing surfaces. The signal generator is electrically connected to the sensing surfaces and transmits different control signals to each sensing surface. Each elastic assembly includes two elastic members. One end of each elastic member secured to the sensing surfaces, and another end of each elastic member secured to the sensing body. The motion sensing device is shaken, the sensing body contacts with the corresponding sensing surface and transmits the control signal.

Abstract: An electronic device includes a handwriting pen and a main body. A gyroscope senses movement information of the handwriting pen and outputs the movement information to a controller. The controller converts the movement information into electrical signals and outputs the electrical signals to the main body through a signal transmitting module. A processor receives the electrical signals through a signal receiving module and the signal transmitting module, converts the electrical signals into movement information, and outputs the movement information to a character identification module. The character identification module converts the movement information into a corresponding character, and controls the display unit to display the character.

Abstract: A print device with a surface identifying function includes a feed roller assembly; a print assembly; an obtaining module; a determining module; a control module; a sliding control module; at least one sliding bar and a printed surface identifying assembly. The sliding control module controls the printed surface identifying assembly to slide along the sliding bar. The obtaining module controls the printed surface identifying assembly to identify if one or both surfaces of the sheet of paper have already been printed, and generates a result. The determining module determines whether the paper is available for printing according to the result. The control module controls the print assembly not to perform the printing task and the feed roller assembly to take the paper out of the print device when the paper is unavailable for printing. A printing method is also provided.

Abstract: An audio monitoring device for testing an audio device is provided. The audio device is placed in a shielding room which contains a signal emitter. The signal emitter emits electromagnetic waves which electronically interfere with the audio device. The audio monitoring device includes a sound collector, a sound transmitting tube, and a sound outputting element. The sound collector is positioned in the shielding room and collects sounds from the audio device produced whilst being subjected to the electromagnetic interference issued by the signal emitter. The sound transmitting tube has one end connected to the sound collector and the other end exposed from the shielding room, to connect to the sound outputting element. The sound transmitting tube transmits the sounds collected by the sound collector to the sound outputting element for analysis.

Abstract: A cleaning system for a solar panel includes a light emitting element mounted on a battery plate of the solar panel, a photosensitive element mounted on a glass plate of the solar panel, and a control circuit connected to the photosensitive element to receive the light intensity of the light from the light emitting element. The control circuit further compares the light intensity received from the photosensitive element with a preset light intensity. When the light intensity received by the photosensitive element is substantially equal to the preset light intensity, the control circuit controls a switch to disconnect a fluid tank from a nozzle. When the light intensity received by the photosensitive element is less than the preset light intensity, the control circuit controls the switch to connect the fluid tank to the nozzle for releasing a cleaning fluid to clean the glass plate.

Abstract: A cleaning system for solar panels includes first and second cleaning units, first and second control units, first and second power measuring units to measure a first power outputted from a first solar panel per interval of time and a second power outputted from a second solar panel per interval of time, and a processing unit. The processing unit reads the first and second powers and the first and second coefficients, and determines whether the second power is less than a product of the first power, the first coefficient, and the second coefficient. When the second power is less than the product, the processing unit outputs a control signal to the second control unit. The second control unit controls the second clean unit to clean the second solar panel.

Abstract: A computer includes an enclosure, a motherboard, a memory slot, a memory, a heat-dissipating memory, and a grounding element. The enclosure includes a cover. The motherboard is received in the enclosure. The memory slot is mounted on the motherboard. The memory is inserted into the memory slot. The heat-dissipating member partially wraps the memory. The grounding element is mounted on an inner surface of the cover. When the cover covers a base of the enclosure, the grounding element elastically abuts the heat-dissipating member, to electrically connect the heat-dissipating member to the cover and ground.

Abstract: A motherboard includes a circuit board, a memory slot, a memory, a heat-dissipating member, an electrically conductive latching element, and a grounding element. The grounding element includes two electrically conductive first securing members mounted on the circuit board. The first securing members are electrically connected to a ground layer of the circuit board. The latching element includes a latching portion abutting the heat-dissipating member and two hooking portions formed on two ends of the latching portion. The hooking portions respectively latch the first securing members.

Abstract: An electromagnetic anechoic chamber includes a peripheral wall and a bottom wall. The peripheral wall is covered with wave absorbers on the inner surface thereof. The bottom wall is circular, and covered by the peripheral wall, and divided into two semicircles, one half is a reflecting ground floor, and forms a semi-anechoic chamber with the peripheral wall thereon; the other half is covered with wave absorbers, and forms a fully anechoic chamber with the peripheral wall thereon.

Abstract: An electromagnetic shield includes a base layer, a wire mesh, and two ground wires. The wire mesh is embedded in the base layer, and includes a number of first wires and a number of second wires intersecting with the first wires to form a number of cells. The first and second wires are made of conductive material. The ground wires are respectively arranged on two opposite sides of the wire mesh and connected to the first and second wires.