Nordic BLE 4.0 nRF51822 Controller Chip Bluetooth Module Small Size 18.5 x 9.1x 2.0mm 5 Pack Basket no Bluetooth protocol stack development

no Bluetooth protocol stack development experience can use too

which saves the resources of the external MCU

Frequency Range：915 MHz（Customizable137-1020 MHz）

Communication Mode:Full-Duplex & Half-Duplex

Max transmission distance: 200 meters (open horizon)

Nordic BLE 4.0 nRF51822 Controller Chip Bluetooth Module Small Size 18.5 x 9.1x 2.0mm 5 Pack Basket no Bluetooth protocol stack developmentOrder sample from Amazon: Memory256KB flash + 16KB RAM memory Transparent transmission (Bridged method) easy to use and fast, no Bluetooth protocol stack development experience can use too. The user interface uses a standard UART (TTL) Interface, bidirectional data read, easy to operate Supports serial AT commands, the user can modify the basic parameters like the serial port baud rate (default 9600bps), name, MAC address of the module, etc Serial