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The Arduino USB Host Shield allows you to connect a USB device to your Arduino board. The Arduino USB Host Shield is based on the MAX3421E (datasheet), which is a USB peripheral/host controller containing the digital logic and analog circuitry necessary to implement a full-speed USB peripheral or a full-/low-speed host compliant to USB specification rev 2.0. The shield is TinkerKit compatible, which means you can quickly create projects by plugging TinkerKit modules onto the board. The following device classes are supported by the shield: HID devices: keyboards, mice, joysticks, etc. Game controllers: Sony PS3, Nintendo Wii, Xbox360. USB to serial converters: FTDI, PL-2303, ACM, as well as certain cell phones and GPS receivers. ADK-capable Android phones and tables. Digital cameras: Canon EOS, Powershot, Nikon DSLRs and P&S, as well as generic PTP. Mass storage devices: USB sticks, memory card readers, external hard drives, etc. Bluetooth dongles.
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General Description GY-26-USART is a low cost plane digital compass module. The working principle is utilizing magnetoresistive sensor sensing the Earth's magnetic field component to get an azimuth angle. It communicates with upper computer through UART. Output format is ASCII. With solid state compass design, it has stable operation, high accuracy and advanced hard iron compensation function. It can overcome surrounding magnetic interference. Baud rate is optional. The product has three work modes; Normal mode, continuous mode and calibration mode. You can choose UART or IIC communication to use it.
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GH-719 microwave sensor module is non-contact displacement probe-type modules, RFI ability, independent of temperature, humidity, light, air, dust impacts can be installed in a certain thickness of the plastic, glass, wood and other non-metallic shell which facilitate their application to control a variety of products or equipment above. Second, the adjustments of the circuit board:A 16-level sensitivity adjustment: the circuit board with 4 0 1 2 3 marked the connection point. 1: Short circuit in accordance with the following four connections, adjustable 16- level sensitivity, so that in the 0.3-10 m sensing distance adjustable. 2:4 a connection point break, the nearest sensor, at 0.5 meters.B 4 trigger modes to adjust: the circuit board there are two connections marked with 45 points.
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Mini-size RS232 DB9 female port to RS485 RS422 DB9 male connector Hot-swappable and plug & play, port-powered over RS232 RS485 RS422 Unique serial charge pump drive technology, TXD/RXD/GND communication The range of baud rate: 300bps-115.2Kbps Working Mode: asynchronous half-duplex (RS485) or full-duplex (RS422)