BLE beacon is a common use of low power Bluetooth and it broadcasts advertisement at some interval. Freescale BLE beacon demo use Freescale Kinetis KL16 low power MCU and EMC EM9301 Bluetooth controller to implement a beacon reference design. Freescale BLE beacon features low power consumption of an average cost of 50uA with 600ms interval.
Freescale Kinetis KL16 coordinates with EM9301 through SPI interface.
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