CC2540
1 deviceProducts featuring the CC2540 — a TI Bluetooth Low Energy 4.0 SoC for wireless HID, iBeacon, and BLE communication.
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DFRobot Beetle BLE

Ultra-compact Arduino Uno-compatible board with BLE 4.0 (CC2540), ATmega328P, sewable gold-plated I/O pads, and wireless programming in a 28.8x33.1mm wearable form factor.
AVR 8-bit single-core @ 16MHz2KB SRAM32KBBLE BLE 4.0
~$15View
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