HM-11 Bluetooth Module

It is a low power consumption SMD Bluetooth module using the TI CC2541 chip. The module allows you to quickly and easily set up BLE communications using the AT command with the manufacturer's pre-programmed firmware. Supports BLE communication with iPhone, iPad and Android 4.3.

Supports AT command. Users can set the operating mode (master/slave), baud rate, device name, password password, etc.

It is very suitable for your projects that require ultra-low power consumption.

Features :

Bluetooth protocol: Bluetooth Specification V4.0 BLE
Operating frequency: 2.4 GHz ISM band
Interface path: a serial port
30-meter open environment can realize inter-module communication
To send and receive byte limit between modules
Modulation method: GFSK (Gaussian Frequency Shift Keying)
Transmit power: - DBM, 23-6 DBM, 0 DBM, 6 DBM, can be changed by AT command
Use TI CC2541 chip, 256 KB configuration space, support AT command, user, agile by matching parameters such as role (master, slave mode) and serial port baud rate, name of equipment, passwords.
Power supply: + 3.3 VDC 50 mA
Operating temperature: - 5 ~ + 65 centigrade
Default baudrate: 115200
Current drawn during transmission: 15mA
Current drawn during receiving: 8.5mA
Dimensions: 13.5 x 18.5 x 2.3mm