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The Bluetooth protocol RFCOMM is a simple set of transport protocols, made on top of the L2CAP protocol, providing emulated RS-232 serial ports (up to sixty simultaneous connections to a Bluetooth device at a time). The protocol is based on the ETSI standard TS 07.10. RFCOMM is sometimes called serial port emulation.
It is commonly used in car navigation systems to control streaming Bluetooth audio. It also has the possibility for vendor-dependent extensions. AVRCP has several versions with significantly increasing functionality: 1.0 — Basic remote control commands (play/pause/stop, etc.) 1.3 — all of 1.0 plus metadata and media-player state support
Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs). In the most widely used mode, transmission power is limited to 2.5 milliwatts, giving it a very short range of up to 10 metres (33 ft).
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A servo valve receives pressurized hydraulic fluid from a source, typically a hydraulic pump. It then transfers the fluid to a hydraulic cylinder in a closely controlled manner. Typically, the valve will move the spool proportionnaly to an electrical signal that it receives, indirectly controlling flow rate.
If a shark charges, fight back. It’s important to pay attention to the shark’s behavior, and see if its movements are erratic, if it’s moving backwards and forwards, circling, or just has a ...
Pairing, sometimes known as bonding, is a process used in computer networking that helps set up an initial linkage between computing devices to allow communications between them. The most common example is used in Bluetooth , where the pairing process is used to link devices like a Bluetooth headset with a mobile phone .
Electro-hydraulic actuator. Electro-hydraulic actuators ( EHAs ), replace hydraulic systems with self-contained actuators operated solely by electrical power. EHAs eliminate the need for separate hydraulic pumps and tubing, because they include their own pump, [1] simplifying system architectures and improving safety and reliability.