Product Description
Item Description
This module is a very affordable solution for Bluetooth Low Energy or Bluetooth 4.0. It connects with your MCU such as the Arduino through the UART port.
It supports Central and Peripheral mode switch, easy to modify by AT commander.It can be easily used with Android phones and Iphones, PCs, other Arduinos or any other Bluetooth device for wireless serial communication (UART).
This module can be configured in master, slave and master-slave mode.
The Bluetooth module uses the CSR BlueCore or TI CC2541 chip.
The Base board comes with anti reverse circuit to avoid accidental power plug in the module and a logic level conversion circuit.
The power can be adjusted -23dbm, -6dbm, 0dbm, 6dbm, through an AT Command (AT+POWER).
Specifications
Working frequency:2.4GHz ISM band .
Modulation method: GFSK(Gaussian Frequency Shift Keying) .
RF Power:≤4dBm, Class 2 .
Sensitivity:≤-84dBm at 0.1% BER .
Speed: 2.1Mbps(Max) / 160 kbps (Asynchronous), 1Mbps/1Mbps(Max) (Synchronous).
Security: Authentication and encryption .Service:
Working temperature:–5 ~ +65 Centigrade
Flash:256Kb
Power: 0.5 mA for standby, Active 8.5 mA,
supports auto sleep.
HM Bluetooth module datasheet
