USB wireless serial data transmission module, support AT commandsWith a stable CH340T do USB to serialBuilt-in anti-crash watchdog procedures, under the harsh environment of industrial control occasions.With this module you can do wireless serial transmission distance farther (100 ~ 1100m, depending on the use of the wireless module), far higher than Bluetooth (10m) serial transmission distanceParameters and commands:1. The number of bytes in a single transmission valid: 1-31 bytes.The first 0 byte system reserved for each transmitted packet length statistics; for example serial port to send 123 (ASCII code, 3 bytes), the actual transfer when the first byte 0 to 3, the receiving end of the actual should be handled to determine the packet length byte received under this number.2. Module Baud Rate: 4800,9600,14400,19200,38400,57600,115200.Covers common baud rate, (factory default 9600)Baud rate modification command: send ASCII code [AT + BAUD = x] (x is 1,2,3,4,5,6,7 4800,9600,14400,19200,38400,115200 the corresponding baud)Such as: Modify the baud rate to 115200, the serial debugging assistant sending ASCII [AT + BAUD = 7], the system replies:Baud rate setting success !!Baud Rate: 115200At this baud rate of 115200, serial debugging assistant need to switch to 115 200 to communicate with the module.Note: The command must be in uppercase letters!3.NRF24L01 module transmission rate: 1Mbps, 2Mbps (factory default 1Mbps)Transmission rate setting command: send ASCII code [AT + RATE = x] (x 1,2 respectively 1Mbps, the transmission rate of 2Mbps)Such as: modify the transmission rate of 2Mbps, then sending ASCII serial debugging assistant [AT + RATE = 2], the system replies:Transmission rate setting success !!Transmit power: 0dBmTransfer rate: 2MbpsLow-noise amplifier gain: open4, NRF24L01 module address setting: 5 address, local address and the receiver address matches 0 (factory default 0xFF, 0xFF, 0xFF, 0xFF, 0xFF)Address Set command: Send ASCII code [AT + ADD = 0x ??, 0x ??, 0x ??, 0x ??, 0x ??] (0x ?? address you want to set a comma, the comma must be in English half-width )Such as: change the address for 0x11,0x22,0x33,0x44,0x55, then sending ASCII serial debugging assistant [AT + ADD = 0x11,0x22,0x33,0x44,0x55], the system replies:Address Setting Success !!Local Address: 0x11,0x22,0x33,0x44,0x55Receiving end address 0: 0x11,0x22,0x33,0x44,0x555, System Information inquiry:Query: sending ASCII [AT?], The system replies:AT?System Information:Baud Rate: 115200Local Address: 0x11,0x22,0x33,0x44,0x55Receiving end address 0: 0x11,0x22,0x33,0x44,0x55Transmit power: 0dBmTransfer rate: 2MbpsLow-noise amplifier gain: open
NRF to USB module
تومان 160000
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