Bluetooth walkie-talkie solution PCBA solution development

Bluetooth intercom solution

The bluetooth walkie-talkie solution uses GT-BDS02 dual-mode Bluetooth module of GT-BDS02, supports BLE4.0, HFP, HSP, OPP, SPP, A2DP, **RCP and other Bluetooth protocols, has a rich protocol stack, supports dual microphones, and actively reduces Noisy, support 8KHZ and 16KHZ call sampling rate, Grayy provides a complete solution customization service!

GT-BDS02 module features are as follows:

● Support standard BT3.0 + EDR

● Support standard BT4.1 BLE protocol

● Support BT3.0 Classic mode SPP protocol

● Support UART interface

● Support low power consumption mode

● Support Bluetooth Class1 and Class2 modes

● Support active noise reduction

● Support dual microphones

● Support data encryption

● Green

The headset with traditional 2.4g walkie-talkie is not very convenient for users to operate due to the use of cable connection.

Equipped with the Bluetooth module on the walkie-talkie to remove the cable entanglement of the wired shoulder microphone or wired headset, making the man-machine intercom more free and convenient. At the same time, because Bluetooth supports mobile phone connection, it can also be used for listening to music and answering phone calls. . At the same time, remote intercom can be realized through mobile phone APP + Internet cloud. Gteray can provide complete solutions according to user needs.

One, suitable for Bluetooth intercom adapter

1. Voice call

When the walkie-talkie receives a call, it needs to establish a call link with the Bluetooth headset through the Bluetooth module. It can be used with any common Bluetooth headset on the market for communication, the call sampling rate supports 8KHZ and 16KHZ, the call mode full-duplex call, supports dual microphone arrays, supports active noise reduction, and the sound quality is more guaranteed

2. Launch control (one-way: similar to remote control equipment, we call it Bluetooth PTT)

When the user initiates a call, the Bluetooth slave device can be used to control the radio to transmit, thereby establishing a path with the caller; this Bluetooth slave device generally transmits data, such as key information. After the intercom device receives the key message, it then starts the transmission;

(PTT optional program 433MHZ remote control, BLE remote control, SPP channel remote control ------ press to call, release to end the call)

3. Can be customized according to customer needs, support SPP, UART auxiliary data interface

2. Suitable for Bluetooth wireless teaching microphone (amplification)

1. The microphone call frequency supports 8KHZ and 16KHZ, supports high-definition voice calls, and can use A2DP protocol;

2. The call delay time is 30-40ms;

3. It can be adapted to any audio system that supports Bluetooth;

3. Suitable for wireless cockpit call system

1. Suitable for all kinds of screen RVs, command vehicles, special vehicles, banking systems, prisons, etc.;

2. Support the cockpit automatic hands-free answering call function, and the cockpit one-key call function to ensure driving safety;

3. Supports one-button hands-free call in the rear cabin, and automatically transfers to the handle when leaving the seat to protect privacy and support rejection;

4. The network function is automatically completed when power on;

5. Clear voice call, support hands-free and handle functions