The Atech BL-4011, Bluetooth Low Energy (BLE) single mode module
is targeted for low power sensors and accessories. It offers GATT
profile as default and can also supports other standard BLE
profiles such as proximity, and find me, etc. BL-4011 measure 21mm
x 12.6mm x 1.7mm and is available in three variants, onboard Chip
Antenna, On Board U.FL connector or RF Pin Out solder pad.
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