Introduction
It is used in many applications such as wireless headsets, game controllers, wireless mouse, wireless keyboard and many other consumer applications.
Its range is less than 100 meters, which depends on the transmitter, receiver, weather, geographical and urban conditions.
It is a standardized protocol according to the IEEE 802.15.1 standard, through which a wireless personal area network (PAN) can be built. It uses the FHSS radio technology to transmit data over the air.
It uses serial communications to communicate with devices. It communicates with the microcontroller using the serial port (USART).
Specification od Bluetooth module HC-05
- Voltage: 3.6 V-6 V connected to the VCC pin
- Communication leads are working with voltage 3.3 V (tolerate 5 V)
- Current consumption: approx. 50 mA
- Class 2 – maximum transmitter power + 4 dBm
- Range: up to 10 m
- The password for pairing: 1234
- Standard: Bluetooth 2.0 + EDR
- The SPP profile with possibility to configure via AT commands
- Communication: UART (RX, TX)
- Small dimensions: 39 x 16 mm
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