Microchip BM71BLES1FC2-0002AA Bluetooth Chip 4.2

The BM71 is a small form factor, Bluetooth Low Energy module measuring only 9 x 11.5 x 2.1 mm. The BM71 module is designed for easy implementation into a broad range of applications. It delivers up to 2.5x throughput improvement and more secure connections vs. Bluetooth 4.1 based products. Developers can easily interface to the device via a standard UART interface, available on most Microcontrollers and Processors. The BM71 has a completely integrated Bluetooth software stack, and offers a shielded version with built-in antenna. Developers are freed from the complexities of Bluetooth Software and RF development and can simply utilize the BM71 as a wireline replacement.

1.9V∼3.6V operating range
UART interface
1 x PWM supported
Main Crystal : 32MHz
Temperature sensor supported
12 bits ADC supported for 5CH input ports and battery voltage detection
Wake up by any GPIO
RSSI Monitor
ISM Band 2.402 to 2.480 GHz operation
Channels 0-39
RSSI monitor