Li-Tianming

change buzzer pin idle status to High voltage level (3.3v)

1

in original code, the buzzer is very hot. the buzzer module schematic i used like below image, in original idle status, `self.buz.duty(0)`, the buzzer drive pin will be 0v in...

[Gitalk:/soft/Lichee/zh/Zero-Doc/System_Development/kernel_build.html] 主线Kernel基础编译- Sipeed Wiki

3

https://wiki.sipeed.com/soft/Lichee/zh/Zero-Doc/System_Development/kernel_build.html

Mavlink OSD is not available in the latest firmware, but old version firmware works well

6

The air unit can get data from serial, but the ground station(phone) can not display osd data. ``` root@openipc-ssc338q:~# mavfwd --baudrate 115200 --channels 8 -p 100 -a 15 -t -...