HC-05 Bluetooth RF Transceiver Module

Bluetooth protocol: Bluetooth Specification v2.0+EDR (Enhanced Data Rate)

Frequency: 2.4GHz ISM band

Modulation: GFSK (Gaussian Frequency Shift Keying)

Emission power: ≤4dBm, Class 2

Sensitivity: ≤-84dBm at 0.1% BER

Speed: Asynchronous communication: 2.1Mbps (Max) / 160 kbps, Synchronous communication: 1Mbps/1Mbps

Security: Authentication and encryption

Profiles: Bluetooth serial port

Supply Voltage: +3.3V to 6.0 V

Supply Current: 30mA

Working temperature: -20 ~ +75Centigrade

Dimension: 26.9mm x 13mm x 2.2 mm

HC-05 Bluetooth module follows the IEEE 802.15.1 standardized protocol, through which one can build a wireless Personal Area Network (PAN). It uses frequency-hopping spread spectrum (FHSS) radio technology to send data over the air.