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 non-us