It is very simple demonstration how to use Carambola as rover platform with video feedback. It could be nice toy to build in couple of hours.
I used very simple hardware setup. Key components are motor controller, 47:1 gearmotors, wheels, UVC webcam supported by mjpg_streamer and of course Carambola.
passwd root
opkg update opkg install mjpg-streamer
/etc/config/mjpg-streamer
if you like. Default settings works fine. config mjpg-streamer core option device "/dev/video0" option resolution "400x200" option fps "25" option port "8081" option enabled "true"
opkg install ser2net
2002:raw:600:/dev/ttyS1:115200
/etc/rc.local
file to add ser2net autostart functionality ser2net exit 0
reboot
http://192.168.0.112:8081/?action=stream
0x8A, SPEED, 0x8D, SPEED
0x88, SPEED, 0x8E, SPEED
0x88, SPEED, 0x8D, SPEED
0x8A, SPEED, 0x8E, SPEED
0xAA, 0x0A, 0x04, 0x03, 0x01, 0x55, 0x2A
This quick example illustrates how to interface motor controller and webcam. Further you could connect these items to build autonomous vehicle.
ser2net
this will enable communication to motor controller.