Descripition:

• Operating voltage: 3.3 V
• Default Baud Rate: 9600,8,1,n.
• Signal coverage: 30 feet.
• Bluetooth version: V2.0+EDR
• Series: bluetooth module board series
• Size: about 37 * 16 * 7 mm  

Specification：

• With LED indicator light, use 150mA and 3.3V regulation chip.
• With VCC、GND、TXD、RXD foot for the Bluetooth
• With "Re-seach" button(ON/OFF/WAKE foot for it , external MCU outinput "High level" can control module to re-seach)
• Compatible with bluetooth master module"、slave module"or master-slave(whole) module.
• Input voltage: 3.3~6V

Product features:

1. Core modules using HC - 06 slave module, which leads to the interface includes VCC, GND, TXD, RXD, reserved LED state output pin, MCU can state whether the bluetooth is connected through the foot, KEY pin invalid on the slave machine.
2. Led indicates a bluetooth connection status, twinkle said there was no bluetooth connectivity，bum steady statu said bluetooth connection and open the port.
3. Baseplate 3.3V LDO, the input voltage 3.6 ~ 6 v, about 30 mA unpaired as current, when make a pair current about 10mA, the input voltage more than 7V is prohibited.
4. Interface level 3.3 V, can be connected directly to a variety of single chip microcomputer (51, AVR, PIC, ARM, MSP430, etc.), 5 V microcontroller can also be connected directly, without MAX232 and couldn't through MAX232.
5. Clearing effective distance of 10 meters, more than 10 meters is possible, but not keep distance connection quality done).
6. Matching later when full duplex serial port to use, do not need to know any bluetooth protocol, but supports only one in the eight data bits, one stop bits, no parity checking the communication format, which is the most commonly used communication format, does not support other formats.
7. When the bluetooth connection has not been established support by pairing the AT command set baud rate, name, password, set the parameters of the power save. After the bluetooth connection automatically switch to passthrough mode.
8. Small size , SMT production factory, ensure the quality of the patch. And set transparent heat shrinkable tube, dustproof and beautiful, and there are certain antistatic ability.
9. This link for the slave machine, it can watching with all kinds of computer with bluetooth, bluetooth host, with most of bluetooth mobile phone, PDA, PSP, such as intelligent terminal, between the slave machine can not match.

Small common sense (very important)：

• TXD: sender, usually expressed as the sender, normal communication RXD must answer another equipment.
• RXD: receiving end, usually expressed as the receiver, the normal communication TXD must answer another equipment.
• When the normal communication itself TXD pick up equipment RXD forever!
• Transceiver by oneself: When the normal communication, RXD connected to TXD from other devices, so if you want to receive its own data transmission, just as its name implies, receive your sending data, directly connected to the RXD TXD itself used to test the send and receive is normal,ie's simplest and fastest test method, when problems arise first do this test to determine whether the product failure.Also known as the loopback test.

Package Included:

• 1PCS*Bluetooth Serial Transceiver Module (NOTE:NO CABLES)