- The factory setting is slave mode, but you can set this module to master mode so that you might be able to connect to other Bluetooth 2.0 devices.HC-05 Wireless BT Module
- HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your Arduino project, and then you can use your android phone to control some gadgets, such as: switch, LED
- Master and Slave 2-IN-1 HC 05 Module:Working Voltage 3.6V to 6V , Default baud rate:9600,Default pin:1234
- Button: Press the button, the module enter the AT mode. AT commands are executed only in AT mode
- 6 PIN Dopunt Cable : with this Dupont Cable, you can easily connect this HC-05 Bluetooth module to your Arduino Board
Module parameters:
- PCB Size: 37.3mm (Long) *15.5mm (wide)
- Weight: 3.5g
- Input voltage: 3.6V--6V, prohibit exceeding 7V
- Leads 6 feet: EN/VCC/GND/RXD/TXD/STATE (Bluetooth state leads, not connected output low level, the output high level after connection)
- With the connection status indicator, LED flash indicates no Bluetooth connection; Led slow flash indicates enter at command mode
- On-board 3.3V voltage regulator chip, input voltage DC 3.6V-6V; When not paired, current about 30mA (due to LED lights flashing, current in the state of change); After the pairing succeeds, the current is about 10mA
- Effective transmission distance of 10 meters in open area, more than 10 meters is possible, but not to ensure the quality of the connection
- After pairing succeeds, can be used as full duplex serial port. No need to understand any Bluetooth protocol, but only support 8-bit data bits, 1-bit stop bits, no parity communication format. This is also the most commonly used communication format, does not support other formats!
- Press the key and then power up the Bluetooth module to enter at mode, set parameters and query information
- Can switch host and machine mode from at command
- The module default baud rate is 9600, the default pairing password is 1234, the default name is HC-05
Wiring method:
- VCC: Connect the power supply positive
- GND: Connecting the cathode
- RXD: The receiver, the Bluetooth module receives data from other devices, and the sending end TXD of the other devices normally
- TXD: Send end, Bluetooth module sends data to other equipment; the receiving end RXD of the other equipments normally
- En: To enable the end, need to enter the at mode when 3.3V
Note: This item doesn't works with iOS.
