Introduction to Raspberry Pio caused a great furrorę in the field of embedded systems, including small computers jednopłytkowych. Wide extension capabilities with a special Hat plates and adapters that allow cooperation Malinki with other systems, built-in, allows you to create many interesting projects. However, if you want to Raspberry Pi to connect more devices to the USB than is physically possible, the default number of sockets on Board “raspberries”, then you should use the special USB hubs. Thanks to this you can connect many devices using a single USB port on the Raspberry Pi.
Active HUB D-Link DUB-H7 allows connection of up to seven additional devices to the minicomputer Raspberry Pi. Adapter performance 3 A to power USB accessories with high power consumption, e.g. hard disk.
Active USB hub with colored backlight. The device allows you to connect more devices USB 1.1 or 2.0 to computers. Thanks to the HUB you can extend the capabilities of the minicomputer Raspberry Pi. Included power adapter to power up the hub.
Currently produced computers, including the Raspberry Pi, have from two to eight USB ports. Most devices I/o working with the computer, such as keyboard, mouse, printer, scanner, and memory card readers, and portable media devices interact with the computer with a wire connected to the USB connector. The physical location of Your device desktop relative to the space of the table on which you sit, may be impractical if you want to connect many devices to the USB connectors. Even if you use only one cable type micro USB synonyms for multiple devices, you should use the extension in the form of a USB hub. Typically the USB Hub has the appearance of planks, which, using a single USB computer port allows the connection of multiple devices. With this rack, you can also provide power for USB devices, including battery charging, built-in, for example, phones and powerbankach.
Abstracting from problems of data transfer rate, choosing a USB Hub, pay attention to the maximum output power of the USB connectors on Your computer. Therefore, you should know that the USB hubs differ from each other at an angle of type of food. Distinguish USB hubs-passive, which operate directly from the power bus, located on the computer and USB hubs, active, who have their own independent power source, usually in the form of a network adapter. Some active USB hubs have on Board automatic equipment that, if necessary, to switch the power from the passive mode to the active mode. Since the Raspberry Pi has limited power output, which may be insufficient for more complex projects, it is a very good solution to this problem would be to use an active Hub, which is the energy needs of a greater number of devices that work with the Raspberry Pi.