我使用DJI A3和带有Onboard SDK 3.5的Raspberry Pi 3构建了自己的无人机 . 我测试了示例代码和遥测一个似乎没问题，但飞行控制一个没有用 . 在智能助手2的模拟器中，它运行正常，但在现实生活中，即使是电机也没有旋转 . 这是控制台日志：
rp1:pi % ./djiosdk-flightcontrol-sample UserConfig.txt
Read App ID
User Configuration read successfully.
STATUS/1 @ init, L55: Attempting to open device /dev/ttyAMA0 with baudrate 230400...
STATUS/1 @ init, L65: ...Serial started successfully.
STATUS/1 @ parseDroneVersionInfo, L630: Device Serial No. = 0670134595
STATUS/1 @ parseDroneVersionInfo, L632: Hardware = A3
STATUS/1 @ parseDroneVersionInfo, L633: Firmware = 3.2.36.8
ERRORLOG/1 @ functionalSetUp, L211: Virtual RC not supported!
STATUS/1 @ activate, L1083: version 0x3022408
STATUS/1 @ activate, L1096: Activation successful
STATUS/1 @ startPackage, L332: Start package 0 result: 0.
STATUS/1 @ startPackage, L334: Package 0 info: freq=50, nTopics=1.
STATUS/1 @ removePackage, L441: Remove package 0 successful.
STATUS/1 @ initGimbal, L804: Gimbal not mounted!
| Available commands: |
| [a] Monitored Takeoff + Landing |
| [b] Monitored Takeoff + Position Control + Landing |
a
STATUS/1 @ startPackage, L332: Start package 0 result: 0.
STATUS/1 @ startPackage, L334: Package 0 info: freq=10, nTopics=2.
STATUS/1 @ getErrorCodeMessage, L644: %&1nZ%&̖nZ
STATUS/1 @ getCMDIDTaskMSG, L823: CONTROLLER_MOTOR_ON
ERRORLOG/1 @ initPackageFromTopicList, L162: package [0] is being occupied.
似乎 vehicle->control->takeoff() 返回一些错误（示例代码中的L87 flight_control_sample.cpp ），但我绝对不知道如何解决这个问题 .
非常感谢帮助 . 谢谢！
1 回答
我解决了这个问题：只需校准指南针！
官方用户手册有一个页面，其中包含有关如何校准指南针的信息 .