HM-12: Dual Mode Bluetooth 4.0 BLE SPP LE Serial Port Module for Apple and Android

Overview

HM-12 is a low consumption bluetooth BLE module. It supports dual mode: SPP and LE, which means it not only support bluetooth 2.1 but also supports BLE. It supports L2CAP, RFCOMM, SPP, GATT, GAT standard Bluetooth protocol.

Features

• BT Version: Bluetooth Specification V4.0 EDR and BLE
• Send and receive maximum byte count is 90 bytes.
• Working frequency: 2.4GHz ISM band
• Modulation method: GFSK(Gaussian Frequency Shift Keying)
• Speed SPP: 50% serial port rate; BLE: 50% serial port rate
• Service: L2CAP,、SDP,、RFCOMM、SPP ATT、GATT,、LE Service: 0xFFE0、Char: 0xFFE1
• Power: +3.3VDC 50mA
• Power: In sleep mode 10-17mA, SPP mode 13mA, BLE mode 9.5mA
• Working temperature:–5 ~ +65 Centigrade
• Compatible with Bluetooth 3.0/2.1
• Open environment within 60m (100ft) can realize communication between modules
• Firmware:V218

Dimension

Pins

Documents

Bluetoothdual_en.zip