A: Yes. Can get the source code by clicking the link below:

https://github.com/radiolinkW/ArduPilot-RL

A: The setting steps can follow this manual by click the link below:

https://www.radiolink.com/newsinfo/475989.html

A: The setting steps can follow this manual by click the link below:

https://ardupilot.org/plane/docs/quadplane-support.html

A:

1) If armed indoor, make sure the flight mode of the transmitter is set as Altitude Mode or Manual Mode. Never set the flight mode as Position Hold Mode nor Loiter Mode, which need GPS to functions. If arm the flight controller indoor with the Position Hold Mode, please wait for 1 minute until the stars quantity GPS searches reaches 12 or more after the aircraft is powered on and the position accuracy will be higher.

2) The geomagnetism may change and result in impossible arming even the aircraft debugging went well before. Problem can be solved by holding the aircraft and following the steps in RadioLink Mission Planner to do another geomagnetic calibration.

3) When the aircraft is powered on, listen to the music tone when flight controller is doing self-check. When the self-check is done with success, press the safety button to arm the aircraft. The arming may fail as well if press the safety button too soon.

If the above three causes have been checked and the FC still can't be armed, please connect it to the RadioLink Mission Planner to check other possibility or send mails to after_service@radiolink.com.cn for tech support.

A: Connect the RadioLink Mission Planner to flash the latest firmware. If it's notified that the latest firmware is already exist, flash again by changing another model e.g. ACROBATICS. If the problem still cannot be solved, it's probably because the barometer is broken. Please send emails to after_service@radiolink.com.cn to further confirm and ask for the accessory purchase.

A: When the FC is powered on, level it and remain still for a while, the notice should disappear. This notice usually appears in ACROBATICS firmware.

A: It's probably because of large disturbance. Remove all possible disturbances such as metal parts on aircraft frame. compass and GPS signal. If the notice is still there, calibrate the compass and repower it on afterwards.

Q: What should I do when I encounter any of the below three problems?

1) The connection time between FC and RadioLink Mission Planner is long;

2) Neither option of Load custom firmware or Pick previous firmware is available at the interface of INSTALL FIRMWARE in the INITIAL SETUP sheet;

3) No option of ALL PARAMETER in the CONFIG/TUNING sheet.

A: When any of the above three problems encountered during the connection to RadioLink Mission Planner and trying to flash the latest firmwares, modify LAYOUT from BASIC TO ADVANCED as below shown

A: Set the ARMING_CHECK in Full Parameter List in RadioLink Mission Planner as 0.

A: Yes. Just remember to change the corresponding direction at AHRS_ORIENTATION 17 in Full Parameter List .

A: Yes. Search BRD_SAFETYENABLE at the right column in Full Parameter List interface and set it as 0.

A: It means that there's problem about the compass. It can be solved by either calibrating the compass or removing possible disturbance resources to the compass.

A: Firstly check if the throttle phase of the transmitter is reversed. If it's not the problem of throttle phase, check what notice popping out in the RadioLink Mission Planner. Follow the notice and the problem can be solved accordingly.

A: Yes. This parameter can be modified at LAND_SPEED with the minimum speed as 30cm/s.

A: There are two possible reasons

   1) The memory card is not well inserted or doesn't function.

   2) The firmwares need to be flashed.

A: No, the crossflight is only compatible with the firmware from Radiolink.

A: crossflight supports PPM and SBUS signal input. So crossflight is compatible with receivers which support PPM and SBUS output.

A: The crossflight only can upgrade the firmware by Radiolink Mission Planner, and only can upgrade the firmware from Radiolink.

Make sure both the Mission Planner and firmware have come from RadioLink when updating.

Radiolink Mission Planner can be downloaded here: https://www.radiolink.com/crossflight_missionplanner

The default firmware of crossflight is for Multicopter.

A: It comes from the wrong direction of motor or the reversed installation of the propellers. Check the motor and propellers.

A: Firmware version Airplane_v4.0.5 has been upgraded. Set Fail Safe in all parameter list.

A: Yes, crossflight is compatible with Hexacopter and Octocopter. Because there are 6 ESC soldering points as below.

Please note there are 4ea of ESC in the power module. When you use 6ea of ESC, you need to solder the extra 2ea on the 4ea of ESC.

A:

① Connect the first GPS to the GPS/12C port of crossflight, and the second GPS to the TELEM1 port.

(If you use GPS with non-GH1.25 terminal blocks, you need to replace the GPS terminal block)

② Enter Software Config -- Full Parameter List, then search for “SERIAL1_PROTOCOL”, and change the va lue to “5”.

③ Search for “GPS_TYPE2” in Full Parameter List, and change the value to “1”.

④ Search for “GPS_AUTO” in Full Parameter List, and change the value to “1”.

A: The basic frequency memory of crossflight is 240MHz, the RAM memory of crossflight is 512K, and the Flash memory is 2MB.

A: Yes. For wiring and setting methods, please refer to ardupilot website.

https://ardupilot.org/copter/docs/traditional-helicopter-connecting-apm.html

The tail control of a traditional CCPM helicopter is the tail servo. The tail control of a direct-drive helicopter is the motor.

A: If the flight controller and the GPS with compass internal connect to the Mission Planner at the same time, Compass #1 indicates the compass of GPS, meanwhile, the "Externally mounted" and the GPS direction select box will pop out on the Mission Planner. Compass #2 indicates the compass of the flight controller internally.

The calibrated interface will show in the picture below when use with GPS.

If the GPS is mounted in the same direction as the flight controller, then it need not to setup the direction of GPS in Mission Planner but if you mounted the GPS in a different direction of PIXHAWK, you have to setup the right direction in the Mission Planner.

A: You can connect the positive and negative poles of the ESC or BEC module to the positive and negative poles of the POWER port of the flight controller.

A: The ESC pins of crossflight only supply power for external devices (such as servos), not for the flight controller.

A: NO.

A: The altitude displayed in Mission Planner includes relative altitude and absolute altitude, depending on the setting options in Mission Planner. Double-click the "Altitude (m)" at the bottom left, and the parameter options will pop up.

1. Alt means relative altitude. If this option is checked, the altitude is the height placed when the flight controller is powered on. For example, if we put the flight controller on the table and power it on, the altitude displayed in Mission Planner is the height from the desktop to the flight controller. If the flight controller is only tens of centimeters away from the table, but it shows 2000 meters in Mission Planner, there is something wrong with the barometer.

2. Altasl means absolute altitude. If this option is checked, the altitude is sea level altitude, which is the altitude above sea level.

The absolute altitude comes from the data obtained by the GPS. Only when the GPS finds the satellite and positioning is normal, the absolute altitude will be displayed correctly. Otherwise, the absolute altitude will be displayed as 0 by default.

A: Yes, crossflight supports ESC with PWM protocol, DShot protocol, and OneShot protocol. Before connecting the ESC with the DShot protocol or OneShot protocol, please upgrade the firmware of crossflight to the latest, which can be downloaded here: https://www.radiolink.com/crossflight_firmware

A: crossflight supports ESC with PWM protocol, DShot, or OneShot Protocol. Before using the DShot, or OneShot Protocol, please upgrade the firmware to the latest first, which can be downloaded here: https://www.radiolink.com/crossflight_firmware

A: 2617 waypoints for multicopters, 2623 waypoints for airplanes, cars, and boats.

A: NO.

A: NO.

A: Yes. Click the link below to view related tutorials:

https://ardupilot.org/copter/docs/common-msp-osd-overview.html#common-msp-osd-overview

A: No, it can’t. If crossflight is used for a fixed wing and connected to a single ESC, the ESC current can be up to 90A; If it is used for a multi-rotor and connected to more than 2 ESCs, the total current of all ESCs cannot exceed 90A. So if it is connected to 4 ESCs, the current of each ESC should be 20A or lower.

A: Yes.

The setting methods are as follows:

Connect CrossRace/CrossFlight/Mini Pix/PIXHAWK to Mission Planner---CONFI---Full Parameter List---search SERIALX. Change the value of SERIALX_BAUD to 115, and the value of SERIALX_protocool to 23 ---Change the value of RSSI_TYPE to 3 --- RC_options check options: suppress CRSF mode/rate message for ELRS systems (Note: When using an ELRS receiver, you also need to check the option Use 420kbaud for ELRS protocol.) ---Click  “Write Params”.

(Note: X represents the telemetry port. If TELEM1 is used, X = 1, then please search SERIAL1 in Full Parameter List)

A: Because the receiver signal is not recognized in Mission Planner. Please connect the CRSF receiver to the data transmission port of the flight controller, and modify the parameters of the data transmission port to 23 in Mission Planner.

A: Yes, but you can only install the firmware by loading custom firmware when using QGroundControl. You cannot directly click on the model to install the firmware for crossflight, because it is possible to install the PX4 firmware by clicking on the model. And RadioLink crossflight is not compatible with PX4 firmware.

A: Mission Planner does not support the Apple MAC system, but supports both Windows and Android systems.

QGroundControl Mission Planner supports Windows, Android systems, and the Apple MAC system, but needs to download from its official website.

http://qgroundcontrol.com/

A: The setting methods are as follows:

1. Search SERVOx_FUNCTION in the Full Parameter List, and set data to -1 (x means channel)

2. Search RELAY_PIN and modify it to the value of the corresponding channel (The value corresponding to channel 1 is 50, the value corresponding to channel 2 is 51, and so on)

3. If there are multiple relays, set RELAY_PINx (x represents relay, RELAY_PIN2 represents relay 2, etc.)

4. Set the transmitter channel to control the high level/low level of the relay. Search RCx_OPTION, (RCx means the transmitter channel, RC7 means the 7th channel of the transmitter, etc.), and select Relay On/Off, which means controlling the first relay

5. If there are multiple relays, set multiple channels as above, search RCx_OPTION, and select Relayx On/Off (x means relay, for example: If the 5th channel of the transmitter controls the second relay, select RC5_OPTION as Relay2 On/Off)

6. Restart the flight controller

A: You can use a Bluetooth data link to connect the flight controller to the Mission Planner. Below is a detailed guide on how to connect the flight controller to the Mission Planner by using a Bluetooth data link.

https://ardupilot.org/copter/docs/common-mission-planner-bluetooth-connectivity.html?highlight=bluetooth

A: Yes. Below is the link to explain the setup. Click your device and then you can get the details on how to connect and set them up.

https://ardupilot.org/dev/docs/companion-computers.html

A: For analog FPV, no need to set crossflight. Just follow the below diagram to connect them:

A: The data sent by the Mission Planner to the GPS cannot be viewed.

When a CRSF protocol receiver is connected to the CrossRace, the CrossRace can detect the signal of the transmitter, but the signal is unstable. For example, there will be a response delay in the throttle. When witching to SBUS signal, the problem is solved.

A:  The problem is caused by the new firmware of the CRSF module. If you are using firmware version 6.19, please install the firmware version 6.17.

A:  Please refer to the following setting methods:

1. Flight controller

After the basic configuration of the flight controller is completed, you can perform the following configuration to enable Dshot:

(1) Search SERVO_BLH_AUTO in the Full Parameter List and change the value to 1

(2) Search SERVO_BLH_MASK in Full Parameter List and check the pin channel corresponding to the ESC (if the ESC is plugged into channels 1, 2, 3, 4, check channels 1, 2, 3, 4)

(3) Search SERVO_DSHOT_ESC in the Full Parameter List and change the value to 1

(4) Search MOT_PWM_TYPE in the Full Parameter List and modify the value to the corresponding ESC protocol (Note: If you are using helicopter firmware, there is no need to modify the MOT_PWM_TYPE parameter. Please modify the value of SERVO_BLH_OTYPE to the corresponding ESC protocol)

(5) Power off and restart the flight controller.

2. ESC

After successfully configuring the flight controller, open BLHeliSuite32.exe.

(1) Select BLHeli32 Bootloader (Betaflight/Cleanflight) in Select BLHeil_32 Interface

(2) Select the corresponding flight controller port and connect

(3) Click Read Setup to read ESC information

(4) Enable Auto Telemetry of each ESC

(5) Power off and restart the flight controller, and connect the flight controller to the Mission Planner. The ESC telemetry information (escx_curr, escx_rpm, escx_temp, escx_volt) can be read in the status bar.

A: Yes. Please refer to the below link for more details on how to set it:

https://ardupilot.org/copter/docs/dual-helicopter.html