User Manual FCC ID: 2AKS8DX-BT18 Model Name: DX-BT18 Shenzhen DX-SMART Technology Co Ltd.
Table Of Contents 1、Overview .................................................................................................................14 2、Module Default Parameters .................................................................................14 3、Application Area....................................................................................................14 4、Power consumption parameters...................................................................
1．Overview: DX-BT18 dual-mode Bluetooth module is a dual-mode Bluetooth module (Dual-Mode) that is specially designed for smart wireless data transmission by Shenzhen DX-SMART Technology Co., Ltd. and follows the Bluetooth 4.2 standard protocol. DX-BT18 module applies to wireless data transmission field, uses BT4.2 Bluetooth chip + PCB printed antenna design, SOC chip embedded BT4.
3．Application area: DX-BT18 module supports BT4.2 SPP standard protocol, which can be paired with all Bluetooth-enabled desktop computers, notebooks, Andriod mobile phones and Bluetooth main module to achieve bidirectional data transmission and receiving; DX-BT18 module supports BT4.2 BLE protocol at the same time , Can connect directly with iOS device with BLE Bluetooth function, support background program resident operation.
Characteristic Write method Write without Response Note: This table parameter is for reference only and does not represent the maximum data throughput that the module can support. 6.
9 HVOUT Programmable input and output port 10 HVIN Vacant 11 RESETB Low level reset, at least 5ms 12 VCC Power supply V3.
NC Module enters transparent mode 3. P25 pin (GPIO23): Connection status indicator Pin status Module status Low output standby mode Output high Connection Status 4. P23 pin (GPIO26): Connect interrupt pin (module is in valid connection state) Pin status Module status No action Connection Status Input 200ms low level pulse Interrupt connection, module enters standby 9．Dimensions: 10．LAYOUT Precautions: The DX-BT18 dual-mode Bluetooth module works in the 2.4G wireless band.
The direction parallel to the antenna does not allow copper to be laid or routed. It is also a good choice to directly expose the antenna part out of the carrier board. 4. It is recommended to use insulating material for isolation at the module mounting position on the substrate. For example, put a block of screen printing (TopOver Lay) at this position. 11. AT COMMAND 1. When sending AT commands, you need to pull module P26 low to enter the AT command mode. At other times, the commands do not respond. 2.
d, Figure 2 is to change the Bluetooth name to 1234): 1、Test instructions:
Function Command Response Test instructions AT+TEST\r\n \r\n OK\r\n Description 2、Get The Software Version: Function Command Response Description Query version number AT+VERS?\r\n +VERS=\r\n Software OK\r\n version number Note: The version will be different depending on different modules and customization requirements. 3、Set/Query Module Bluetooth MAC: Function Command Query module MAC AT+ADSS?\r\n Response +ADSS=\r\n address Description 12-bit MAC ad
OK\r\n 2. Send inquiry： ——Query module device name AT+NAME?\r\n return： ——Return module device name：“ BT18” +NAME=BT18r\n 5、Set/Query - Serial Port Baud Rate: Function Command Response Description Query module baud AT+BAUD?\r\n +BAUD=\r\n Baud rate Set the module baud AT+BAUD=\r\n corresponding serial ud>\r\n number 1:9600 OK\r\n 2:19200 3:38400 4:115200 Default BAUD:1(9600) Note: The module must be re-powered after setting the baud rate, enabling the new baud
Set module SPP pairing AT+PIN=\r code \n +PIN=\r\n OK\r\n 7、Query—UUID： Function Command Response Description Query module UUID AT+UUID?\r\n +UUID=, service fy>, UUID \r\n notify UUID write UUID NOTE：Module default UUID: SERVICE UUID FFE0, NOTIFY UUID FFE1,WRITE UUID FFE2 (When setting UUID, the last two bits need to be swapped with the first two bits) Example: 1. Send Settings: ——Query module UUID AT+UUID?\r\n return： +UUID= e0ff,e
notify >\r\n OK\r\n Note: This channel is NOTIFY and WRITE (It can be read or written) Example：Set the NOTIFY UUID to: FE02(When setting, the last two bits need to be swapped with the first two bits) 1. Send Settings： AT+NOTIFY=02FE \r\n return： +NOTIFY=02fe r\n OK\r\n 10、Set—WRITE UUID： Function Command Response Description Set WRITE UUID AT+WRITE?=\r\n write UUID otify >\r\n OK\r\n 11、Disconnect The Link: Function Command Disconnect the link AT+DIS?\r\n Response \
Single Module FCC Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
