Bluetooth Low Energy (Bluetooth LE, colloquially BLE, formerly marketed as Bluetooth Smart[1]) is a wireless personal area network technology designed and marketed by the Bluetooth Special Interest Group (Bluetooth SIG) aimed at novel applications in the healthcare, fitness, beacons,[2] security, and home entertainment industries.[3] Compared to Classic Bluetooth, Bluetooth Low Energy is intended to provide considerably reduced power consumption and cost while maintaining a similar communication range.
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www.nordicsemi.com - nRF52840 / Products / Home - Ultra Low Power Wireless Solutions from NORDIC SEMICONDUCTOR The nRF52840 SoC is an advanced, highly flexible ultra-low power multiprotocol SoC ideally suited for Bluetooth low energy, 802.15.4, ANT and 2.4GHz ultra low-power wireless applications.