D03
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1. Disclaimer Thank you for purchasing the D03 Dual Link Radio (hereinafter referred to as "D03"). Please read this statement carefully before using it. By using it, you will be deemed to have accepted all the content in this statement. Please install and use the product strictly in accordance with these instructions. Shenzhen Chinowing Technology Co., Ltd will not bear any legal responsibility for any results or losses caused by improper use, installation, final assembly, modification. 2. Product Notes 1) Power supply of D03 airborne unit and ground unit: DC7.4-12V (lithium battery 2s-3s),...

3. Product Introduction D03 dual-link radio can transmit remote control signal and data transmission signal simultaneously. It is mainly used to solve the problem of short transmission distance and low quality of remote control signal and data transmission signal. D03 operates in the 900MHZ frequency band, max communication distance can reach 30KM. 4. Item List Main Modules Ground unit ×1

The D03 has two signal outputs, one S-BUS signal and one serial signal. If your remote control or receiver does not support S-BUS, you need to buy PWM to S-BUS module. Please follow the connection diagram below to connect each module. 5.1. Connection Diagram of Ground End

5.2. Connection Diagram of Airborne End After successful connection, pis refer to the below steps to check the connection status. (Different flight controller, this procedure differs a little.) 1. Open the Device Manager of the PC, you can see that the ground end is correctly recognized, the driver is correctly installed, no yellow exclamation mark. A ss-fiiii -ax S#[R amA) MM SBKH] 4- 41 HlllTBisiIB h X ® v gUj DESKTOP-6LHQGU1 > -» IDE ATA/ATAPI S3J!§ > ff > > _ v ffj S£P (COM $Q LPT) ^ Silicon Labs CP210x USB to UART Bridge (COM3) 1 H#-

2. Open the ground station software, select the corresponding COM port and connect to the flight control. The normal connection of the flight control means that the D03 module's data transmission link has been connected. If the connection fails, please check the following points. 1) Whether the baud rate of the flight control and the D03 are the same. 2) Make sure the ground unit driver of D03 is installed successfully. 3) Use the parameters setting software of D03 to ensure that all the parameters of the airborne unit and the ground unit are consistent. 4) Make sure that the RX of the...

②Configuration indicator L2 Always ON means in the configuration mode ③SET button Used to enter radio configuration mode or set Fail-Safe protection output values or upgrade firmware ④Data transmission indicator When the RXD light is on, the receiver is receiving data, and when the TXD light is on, the receiver is sending data. ⑤Signal Strength Indicator Indicator S1 S2 S3 is signal strength indicator. S1&S2&S3 ON, it means strong singal; S2&S3 ON, it means moderate signal; S3 ON, it means weak signal. 5.4. Diagram of Module Normal Connection After power-on the airborne end and ground...

5.5. Read and Modify the Parameters Setting of Radio Link The D03 parameters have been set at the factory. You should be able to use it directly. In the following cases, you may need to modify the radio parameters. 1. The baud rate of flight control is not the same as the preset baud rate. 2. Communication blocked due to multiple D03 radios occupying the same communication channel. 3. There is special requirements for communication bandwidth and communication power. To modify the parameters, pls refer to the below steps. The way to modify the parameters of the airborne end and ground end is...

Fig 2 Ground terminal connection 2. Please confirm whether your data link is H840 or P900, and then select the corresponding parameters setting software. 1) If you are using Version H840, use the corresponding parameters setting software, select the corresponding port and click the connection to read the data link parameters, as shown in the figure below(Note: H840 is currently, no production)

If you want to change the data link parameters, just change the corresponding values in the software, click on Write, and then OK, as shown below 2) If you are using P900 module, pls open the corresponding parameters setting software To modify the baud rate of the serial port, select the corresponding port, then click Connect, select the corresponding baud rate, and finally click Disconnect. If you want to modify the data link ID (address) and output power. ①Open the parameters setting software，click

@After filling out the address and output power, click^S first, and then click disconnect. Do not change any other values during this process, or D03 may not be able to communicate). 3. After the modification, press the set key again or power on again to exit the configuration mode. 5.6. Note • When modifying the parameters, please make sure that the parameters of the ground unit and the airborne unit are same, otherwise the two modules cannot communicate. • Communication bandwidth and communication power directly affect communication 12 www.chinowing.com

quality and distance. Do not modify the values of these two parameters if you do not understand their specific meanings.  After entering configuration mode and completing the parameter configuration, be sure to exit configuration mode. When you configure P900 version data link system, please strictly follow the picture to configure the contents, do not modify other values, otherwise the radio may not communicate normally. 6. The RC Fail-Safe Setting If the user needs to set the use protection for the remote control, do the following 1)Write Fail-Safe Protection Data When the airborne unit...

1)Open Bootloader Upgrading Software Firmware update tool VI .4.3.2 COM : Firmware download Firmware file: Firmware info: HW Version : SW Version : Status 2)Connect a USB cable or configuration cable to the USB port or TTL port, press and hold the set key to power on, the L2 lamp is always on, and then press and hold the set key again until L1, L2 is always on at the same time, and the upgrade software shows the port number, it means in the upgrade mode.