Serial Bluetooth Module
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Availability: 1221
This small size Bluetooth TTL transceiver module allows your target device to both send or receive the TTL data via Bluetooth technology without connecting a serial cable to your computer. It's easy to use and completely encapsulated.
PIN define：
- STATE -You can connect a external LED to indicate the bluetooth state. It same as the state LED on the module.
- RXD -Receive data
- TXD -Send data
- GND -Power ground
- VCC -DC power in (3.6V-6VDC)
- KEY -Turn on/off this module by this pin.(1- OFF, 0/Open- ON)
Specifications:
TTL data transparent transfer between a host Bluetooth device.
Works with any USB Bluetooth adapters.
Default Baud Rate: 9600,8,1,n. Device Name:tinyos key:1234
Coverage up to 30ft.
Built in antenna.
Power input: 3.6V-6VDC(Can not higher than 6V).
Mini Size.
AT command sets
- Communication test
Send 'AT',If module received this command success the module will reply 'OK'
- Change Baud Rate
Modify the Baud Rate of the module:Send 'AT+BAUD1' (BAUD must be capitalized),If setting success the module will reply 'OK1200'
The number after BAUD means the baud rate you want set：
1----1200bps
2----2400bps
3----4800bps
4----9600bps
5----19200bps
6----38400bps
7----57600bps
8----115200bps
9----230400bps
A----460800bps
B----921600bps
C----1382400bps
- Change Device Name
Send 'AT+NAMEname',If module received this command success the module will reply 'OKname'
- Change Pair number
Send 'AT+PINxxxx',If module received this command success the module will reply 'OKsetpin'
xxxx is that pair number you want to set. It must be 4 digits.
Document:
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