Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs). Invented by telecom vendor Ericsson in 1994, it was originally conceived as a wireless alternative to RS-232 data cables. It can connect several devices, overcoming problems of synchronization. – Wikipedia
Bluetooth is managed by the Bluetooth Special Interest Group (SIG), which has more than 25,000 member companies in the areas of telecommunication, computing, networking, and consumer electronics.
IEEE 802.15.4 is a standard which specifies the physical layer and media access…
Wi-Fi (or WiFi) is a local area wireless computer networking technology that…
iBeacon is a protocol standardized by Apple and introduced at the Apple…
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