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  • 2PCS Wireless Bluetooth Master-Slave 2 in1 Module RS232 / TTL
    • i i
    • images/l/Geeetech_biooteeth2_1.jpg images/l/Geeetech_biooteeth2_1.jpg
    • images/l/Geeetech_biooteeth2_2.jpg images/l/Geeetech_biooteeth2_2.jpg
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    • images/l/Geeetech_biooteeth2_4.jpg images/l/Geeetech_biooteeth2_4.jpg
2PCS Wireless Bluetooth Master-Slave 2 in1 Module RS232 / TTL


Shipping Weight:16g

Quantity in stock:885


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This is a Bluetooth with Blue2.0, you can modify master & slave mode at any time. Master and slave mode support the same AT command as the hardware. It is set to support the baud rate 2400 to 1382400.The current firmware has been modified for the new version: The default setting for serial port: (9600, N, 8,1), password: 1234.

Support the AT command to modify the baud rate, device name, passkey, master or slave mode (master and slave mode can be modified by AT commands), if you require additional baud rate or the principal mode of an order, please indicate the support of the baud rate 2400---1382400.



Build-in CSR company Bluetooth chip BC417143
Bluetooth specification v2.0 + EDR
High-board antennas
Paired with various Bluetooth adapter, Bluetooth phone use, master-slave can also be used in double
Can be set for the module control parameters and control commands issued via AT commands
The maximum serial baud rate: 1382400bps, support for hardware flow control transfer
Provide seven input and output ports, scalable user IO resources
Work status indicators; connection with the non-connection state signal output, easy to track the status of module MCU
Used for embedded wireless serial transmission alternatives
Size: 26.9mm x 13mm x 2.2 mm



Bluetooth protocol: Bluetooth Specification v2.0+EDR
USB protocol: USB v1.1/2.0
Frequency: 2.4GHz ISM band
Modulation: GFSK(Gaussian Frequency Shift Keying)
Transmit power: ≤4dBm, Class 2
Sensitivity: ≤-84dBm at 0.1% BER
Rate: Asynchronous: 2.1Mbps(Max) / 160 kbps
Synchronous: 1Mbps/1Mbps
Security features: Authentication and encryption
Support profiles: Bluetooth
serial port (master & slave)
Power Supply: +3.3VDC 50mA
Working temperature: -5 ~ +45 Centigrade


Package list:

2 x Wireless Bluetooth Master-Slave 2 in1 Module




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