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کد:
Support Windows 98/Me/2000/XP/Server 2003/VISTA / 
 2008/Win7 server 32 bit / 64 

 Module data transmission wireless USB Series Support AT Command Set up the system! 
 Note: This price does not include NRF24L01 module! ! 
 With a stable CH340T USB to Serial 



• Two modules are power LED indicator lights (Power always) status indicator NRF24L01 (normal detection module flashes) 
• Surveillance Built-in anti-collision procedures, harsh environment industrial control occasions. 
• Module NRF24L01 toward the web, as shown in the figure below, insert anti-system will not work, but will not burn module 
• With this module you can make the transmission distance wireless farthest range (100-1100m, depending on the use of wireless module), much higher than Bluetooth (10m) away serial transmission 


 Purchase program: 

 1.2 or more in this serial wireless module (NRF24L01 property) 
 Experiment The communication can be made ​​between the module and the module can be many, many-to-many 

 2.1 This serial wireless module (NRF24L01 property) 
 You can do the experiment of communication between the computer and the microcontroller, such as single-chip wireless transmission of collected sensor data to the host computer; PC control MCU to execute multiple commands 

 Parameters and commands: 
 Note: All commands are case, the score should be half the width score in the state of English! ! 

 1, a single byte of effective transfer: 1 -31 bytes. 
 The first system of 0 bytes reserved for each transmission packet size statistics; how to send serial "abc" (ASCII code 3 bytes) port, the actual transfer of "3ABC" 0 bytes on the first three, in order to receive must process to determine the actual length of the received data packet based on that number bytes. 

 2, Module Baud Rate: 4800,9600,14400,19200,38400,57600,115200. 
 Covers common transmission rate (baud rate factory default is 9600) 
 Baud rate modification instructions: Send ASCII code [AT + baud = x (X is 1, 2, 3, 4, 5, 6, 7 Correspondent 4800, 9600, 14400, 19200, 38400, 115200 baud rate) 
 Example: To change the baud rate to 115,200, then send ASCII serial debugging assistant [AT + BAUD = 7] The system responds: 
 Baud rate set successfully! ! 
 Baud Rate: 115200 
 In this case, the baud rate is 115200, serial debugging assistant needs to change to 115200 to communicate with the module. 

 Note: The command must be uppercase! 
 3, transfer rate NRF24L01 module: 1Mbps, 2Mbps (factory default 1Mbps) 
 Baud rate setting command: Send ASCII code [AT + = speed x] (X is 1, 2 Corresponding 1Mbps, 2Mbps transmission rate) 
 Such as: Change the transfer rate of 2 Mbps, then send ASCII serial debugging assistant [AT RATE + = 2] The system responds: 
 The baud rate set successfully! ! 
 Transmission power: 0dBm 
 Transfer rate: 2Mbps 
 Low noise amplification gain: open 


 4, NRF24L01 address configuration module: 5 address, place and address of the receiver match 0 (default 0xFF, 0xFF, 0xFF, 0xFF, 0xFF factory) 
 Address Set command: Send ASCII code [AT + ADD = 0x **, ** 0x, 0x **, ** 0x, 0x ** (0x ** is set to face a comma "" It must be in English half-width point ) 
 Such as: Change address is 0x11, 0x22, 0x33, 0x44, 0x55, then send ASCII serial debugging assistant [AT + ADD = 0x11, 0x22, 0x33, 0x44, 0x55] The system responds: 
 Defining Success Address! ! 
 Location Address: 0x11, 0x22, 0x33, 0x44, 0x55 
 Get endpoint address 00:00 x11, 0x22, 0x33, 0x44, 0x55 

 5 Survey Information System: 
 Query command: Send ASCII code [? AT] The system responds: 
 AT? 
 Information about the system: 
 Baud Rate: 115200 
 Location Address: 0x11, 0x22, 0x33, 0x44, 0x55 
 Get endpoint address 00:00 x11, 0x22, 0x33, 0x44, 0x55 
 Transmission power: 0dBm 
 Transfer rate: 2Mbps 
 Low noise amplification gain: open