QGC*遥控器

Zla9

在QGC上遥控器调试的时候，出现“Detected 0 radio channels.To operate PX4,you need at least 5 channels”，这种情况。我使用的接收器是WFLY09S，支持PCMS/PPM，在查阅资料时候，找到一种方法。

-Hold press the arm/disarm safety switch while plugging in the Pixhawk. Keep holding the switch for a few seconds.
-Open QGroundControl or other uploading based method.
-Flash your firmware. Wait for Pixhawk reboot. Connect to Pixhawk.
-Through QGroundControl, under “System” tab, set all parameters to default. Save. Let Pixhawk reboot if necessary. -Close QGroundControl. Unplug Pixhawk. Plug back in. Let Pixhawk initialize first.
-Open QGroundControl, Set up your preferred vehicle type. Let Pixhawk Reboot
-After it reconnects, go to the radio tab. Pair your receiver and transmitter if necessary. You should be able to receive RC commands now.

***The main fix here is holding the safety switch button down while powering on the Pixhawk. This throws the Pixhawk into bootloader mode. You aren’t necessarily flashing a new bootloader but it has something to do with syncing of firmware versions. Don’t hold me to that. That is my guess. This was the only method that worked to get RC control back. I tried this fix across multiple different Pixhawks with stable/beta/dev/custom_default/custom_lpe firmware.

Usually you are supposed to just format the microSD card to fix these issues but that didn’t work for this specific error. Although to be on the safe side, a good Format to FAT32 couldn’t hurt.

i hope this works for you.

这个"the arm/disarm safety switch"是不是GPS上的SWITCH按键，如果不是，这个按键又是哪一个？希望大佬帮忙解决一下。

blueboats

你这个问题都不用大佬回答。。。小弟来回答一下。safety switch 中文名就是安全开关。你看看你硬件上有没有接安全开关，接了的话就长按一下。某些安全开关是在GPS上，比如赫星的。有些是单独的。

风帆

你拍个无人机的照片看看，才好分析是哪个按键。