Custom HM-11 Bluetooth Module ble4.0 Serial Port Transmission Master Slave Integrated Shake iBeacon Small and Stable

The HM-11 Bluetooth module adopts the TI CC2540/1 chip, with a configuration of 256KB space and supports AT commands. Users can change the role (master/slave mode), serial baud rate, device name, pairing password, and other parameters as needed, making it flexible to use.

Product parameters

Bluetooth Specification V4.0 BLE

There is no byte limit for serial port transmission and reception

Under ideal conditions, it is possible to achieve 100 meter ultra long distance communication

USB protocol: USB V2.0 (For HM-15)

Working frequency: 2.4GHz ISM band

Modulation method: GFSK (Gaussian Frequency Shift Keying)

Transmission power: -23dbm, -6dbm, 0dbm, 6dbm, can be modified through AT commands

Sensitivity: -84dBm at 0.1% BER

System Function: Master Slave Integrated Central&Ferripheral

Security features: Authentication and encryption

Service: 0xFFE0 (modified with AT+UUID)

Characteristic: 0xFFE1 (can be modified with AT+CHAR)

Characteristic: Notify&Write (can be modified using AT+RESP)

Power consumption: In automatic sleep mode, the standby current is 50uA~400uA, and it is 8.5mA during transmission.

Power supply:+3.3VDC 50mA

Working temperature: -20~+95 Centigrade

External dimensions: HM-11 18mmx13mmx2.2mm

2、 System functions

Module factory default configuration: default baud rate 9600, N, 8,1, slave mode, iBeacon off, no sleep, transparent mode equipped with the latest firmware V545, main functions are as follows

-Integrated master-slave system

-Supports iBeacon

-Supports firmware upgrades

-Support custom UUID from mode

-Supporting intelligent self-learning function in main mode

-(Can communicate with other manufacturers' 16bit BLE4.0 modules)

-Support transparent transmission mode

-Support remote control mode

-Supports acquisition mode, supports eight channels of acquisition, and also supports two channels of remote control in acquisition mode

-Supports Apple ANCS, one line of IOS code does not need to be written, and the notification center of iPhone can also be transferred to the module

-Supports automatic/manual working modes in host mode

-Power adjustable

-Gain adjustable

-Write or write Titout Besponse is available in thousands of ways

-On chip built-in power monitoring and temperature sensor

-More than 100 AT instructions, only not used, not unexpected