P900 Configuration Guide

Configuration Instructions

The data transmission is configured for point-to-point communication by default. All ground units (hosts) purchased share the same parameters. To change the data transmission key (network IP), baud rate, communication mode, and other requirements, refer to the following documentation.

Note: The antenna must be screwed on before the data transmission can be powered on.

Configuration method:

1. Download Serial Port Debugging AssistantAlithon
2. Connect the data transmission to the computer via a TYPE-C cable, open the computer device manager, and check the COM port. The following figure is normal. If an exclamation mark is displayed on the port, you need to download and install the CP210x driver.
   
3. Install and run the serial port assistant, select the data transmission COM port, and select 9600 as the baud rate.
4. Press and hold the CONFIG and Bind buttons on the side of the data transmitter at the same time (usually with tweezers), release the Bind button first, then release the CONFIG button, and the serial port assistant will pop up NO CARRIER OK, indicating that it has entered configuration mode.
5. Write the AT command that needs to be configured,Note: Each line of AT command needs to be wrapped with the enter key.
6. Click send,In the displayed information, "ok" must appear after each AT command to indicate that the command has been configured normally.

 

Common configuration instructions

AT&W	Parameters are saved, the last line of command must be AT&W	No
AT&V	Displays the configuration of the module	No
AT&F7	Set the default parameters for the point-to-multipoint host	No
AT&F8	Set the default parameters of the point-to-multipoint slave	No
AT&F9	Set the default parameters for point-to-multipoint relay	No
AT&F10	Set the default parameters for peer-to-peer hosts	No
AT&F11	Set the default parameters of the peer-to-peer slave	No
AT&F12	Set the default parameters for point-to-point relays	No
ATS133	Communication network type	0: Point-to-multipoint communication 1: Point-to-point communication
ATS101	Working Mode	0: Master 1: Relay 2: Slave
ATS104	Network IP	The value range is 1~ 4294967295
ATS105	Local device address, the value is unique	1~65535
ATS140	Destination Address	1~65535
ATS102	Serial port baud rate	0：230400 1：115200 2：57600 3：38400 4：28800 5：19200 6：14400 7：9600 8：7200 9：4800 10：3600 11：2400 12：1200 13：600
ATS103	Wireless link rate Higher link rates mean higher data throughput, but lower link rates generally provide better sensitivity and overall robustness.	0：172800 1：230400 2：276480 3：57600 4：115200
ATS108	Transmit power	20 (100mW) 21 (125) 22 (160) 23 (200) 24 (250) 25 (320) 26 (400) 27 (500) 28 (630) 29 (800) 30 (1000)

 

Point-to-point communication configuration

In point-to-point mode, just copy the following parameters and paste them into the serial port assistant, press Enter and then click Send to complete the configuration (OK will be displayed after the successful configuration). The factory default configuration of the data transmission is as follows

Main unit settings (ground terminal)

Set to host mode, baud rate to 57600, airspeed to 115200, network IP to 1231, transmit power to 1000MW, device address to 1, and target address to 2.

• AT&F10
• ATS102=2
• ATS103=4
• ATS104=1231
• ATS108=30
• ATS105=1
• ATS140=2
• AT&W

Slave Device Settings (Sky Unit)

Set to slave mode, baud rate to 57600, airspeed to 115200, network IP to 1231, transmit power to 1000MW, device address to 2, and target address to 1.

• AT&F11
• ATS102=2
• ATS103=4
• ATS104=1231
• ATS108=30
• ATS105=2
• ATS140=1
• AT&W

 

Point-to-multipoint communication configuration

In point-to-point mode, just copy the parameters below and paste them into the serial port assistant, press Enter and then click Send to complete the configuration (OK will be displayed after successful configuration)

Main unit settings (ground terminal)

Set to host mode, baud rate to 115200, airspeed to 230400, network IP to 1232, transmit power to 1000MW, device address to 1, and target address to 65535.

• AT&F7
• ATS102=1
• ATS103=1
• ATS104=1232
• ATS108=30
• ATS105=1
• ATS140=65535
• AT&W

Slave 1 Settings (Sky Unit)

Slave mode, baud rate 115200, airspeed 230400, network IP 1232, transmit power 1000MW, device address 2 (cannot be the same as other slaves), target address 1.

• AT&F8
• ATS102=1
• ATS103=1
• ATS104=1232
• ATS108=30
• ATS105=2
• ATS140=1
• AT&W

Slave 2 Settings (Sky Unit)

Slave mode, baud rate is 115200, airspeed is 230400, network IP is 1232, transmission power is 1000MW, device address is 3 (cannot be the same as other slaves), target address is 1.

• AT&F8
• ATS102=1
• ATS103=1
• ATS104=1232
• ATS108=30
• ATS105=3
• ATS140=1
• AT&W

To set different device addresses for more slaves: ATS105 is sufficient.