KT6368A bluetooth transparent transmission module serial port transparent transmission data communication module supports bluetooth 5.1BLE/2.1SPP -81063

KT6368A is a dual-mode pure data chip that supports Bluetooth-compatible 5.1 version BLE and 21 version SPP function. The highlight of the chip is its ultra-small size and ultra-low price. And the simple and clear transparent transmission and serial AT control function. This greatly
reduces the difficulty and cost of developing embedded Bluetooth-compatible in
other products.

KT6368A supports connecting to mobile phones for two-way data interaction, commonly known as "Bluetooth-compatible transparent transmission." Through the UART interface, it supports common AT commands, such as: setting name, setting address, setting baud rate, etc.

Product parameter:

*It is recommended to give a voltage of 3.3V [2.2V-3.4V].

*The instantaneous current when starting up is 26mA. Stable for about 1 second, then it drops to about 4mA

*The UART buffer provided by the chip is 1K bytes, and the default baud rate is 115200

*For the BLE rate, we have not done a complete test, please test it yourself if you need high-speed transmission

*SPP transmission, it is recommended that a single packet of data does not exceed 512

bytes at a time, and the transmission rate is recommended to be measured by yourself

*The transmission rate of BLE is different due to different mobile phone versions. Therefore, there is no way to uniformly explain the rate, the user measures it by himself

Common problem:

Question 1:How to distinguish between AT instruction and serial port transparent data transmission? How to know if Bluetooth-compatible is connected?

1. AT command, only valid when Bluetooth-compatible is not connected

2. As long as the Bluetooth-compatible connection is successful, it will enter the

transparent transmission, and the AT command will be invalid.

3. This depends on the STA pin of the module. The output low level is not connected. High level output after successful connection

Question 2:How to determine whether the chip is working properly? And the serial port connection is normal?

1.

At the moment the chip is powered on, pin 2 will output a high level

for 1 second, and then immediately pull it down. So connect an indicator

light to see the status

2.

When the chip is powered on, the serial port will definitely return

information. Pay attention to it, if you don’t receive it, there is a

problem with the serial

Question 3:Do you support modifying UUID, Bluetooth-compatible name and Bluetooth-compatible MAC address?

1. Support to modify the Bluetooth-compatible name and Bluetooth-compatible MAC address

2. Of course, it also supports AT command to read. Uuid does not support customers' own modification at the moment, it will be added later.