BC-04 BK (HC-05) Bluetooth V2.0 Serial Transceiver Module - 3.3V 7

Features: BC04 / HC05

• Based on bluetooth module BC04-B.
• Use CSR popular buletooth chip, bluetooth V2.0 Protocol standard.
• Serial port operation voltage 3.3V
• Customize by AT commands for: baudrate, memory mode, module name, master/slave
• Baud rate set at 9600, customization is possible.
• Operation current, pairing at 30MA, after pairing is 8 MA during communication
• sleep mode current: no sleep mode
• Widely use for wireless data communication such as GPS navigation device, remote data collection, PDA devices
• Also can pair and communicate with laptop, laptop bluetooth adapter, PDA devices
• Be aware default setting of the product is slave mode, communication only available between master and slave mode, but not master and master, or slave and slave mode.
• Board silk pring RXD means you need to the connect the RXD port of another device, and same for TXD port.
• R2 version add software and hardware master/slave mode select, default is software on. To use hardware select, need cut off connection on software ON with middle pin first.
• Each purchase if for one piece only.

Setup Mode:

• Bottom jumper set hardware / software method for slave / master mode, Default setup for hardware method.
• Top jumper set for slave / master mode.
• If you prefer to use software method by AT commands to change slave / mater mode, cut the bottom jumper connection (GND – middle pin), then re-connect to top by solder (VCC-middle pin).