HM-12 is a low consumption Bluetooth BLE module. It helps twin mode: SPP and LE, which suggests it not solely assist Bluetooth 2.1 but in addition helps BLE. It helps L2CAP, RFCOMM, SPP, GATT, GAT customary Bluetooth protocol.
HM-12T has ultra-high transmission velocity (EDR can ship at full fee of interface, BLE as much as 8KB/S.
Its Serial buffer measurement: 512 Bytes and Begin time: steadiness mode 1.2 seconds, excessive velocity mode 1 second
It operation Working mode: balanced mode, excessive velocity mode and might Transmit obtain distance: SPP 30m, BLE 60m
Working mode: automated energy on reset, RESETB pin are sometimes left clean It’s included with Working frequency: 2.4GHz ISM band and Modulation mode: GFSK (Gaussian Frequency Shift Keying). Its Sensitivity =-84dBm at 0.1% BER and transmission velocity: SPP 90%, BLE 40%
Its Security traits: Authentication and encryption together with EDR service: L2CAP, SDP, RFCOMM, SPP and BLE service: ATT, GATT, LE Service: OxFFE0, Char: OxFFE1. This machine has a Energy wastage of about 20mA, stand-by t10-17mA and Energy provide: 3.3 VDC 50mA. Its working temperature: -5 ~ 80 Centigrade and Look measurement: 27*13*2.2mm.
The module has built-in wifi community protocol and BLE Bluetooth protocol stack, which may understand quick distribution community via BLE. It’s extremely suited to ultralow energy consumption programs. The module is little and simple to make use of, with the preprogramed firmware of producer, you may rapidly construct BLE communications through it’s AT command.
The communication between controller and module is mainly advanced. We’ll use libraries written for particular controller or boards to talk with this module.
The module is often linked to +3.3V customary energy provide. It might work on +3.6V regulated energy and any greater voltage might harm the module. The UART interface is established as proven in determine. All you wish to attempt to to is join RX of module to RX of controller and TX is linked to TX of controller. The bottom of controller and module have to be linked for voltage reference.
Kind: HM-12T
Measurement: 13 * 27 * 2.2 mm
BT Model: V4.0 EDR & BLE
Firmware: V116
Standing: In manufacturing
