Waveshare AlphaBot User Manual page 45

AlphaBot User Manual
a) Run the command raspi-config to start up the camera before using it:
sudo raspi-config
Then, select the option Enable Camera.
b) For the camera with CSI interface, the system may be unable to find out the
device under the directory of /dev/video0. In this case, you should add a
line, bcm2835-v4l2, into the file /etc/modules.
sudo nano /etc/modules
Add the line:
bcm2835-v4l2
c) After reboot, the system will load the module name stored in this file, and find
out the device video0 under the directory of /dev. (Please take a notice that the
letter l in the command bcm2835-v4l2 is the lower case of L.)
d) Install dependent libraries:
sudo apt-get install libv4l-dev libjpeg8-dev
sudo apt-get install subversion
e) Compile the example:
cd ~/AlphaBot/mjpg-AlphaBot/mjpg-streamer
make USE_LIBV4L2=true clear all
During the make command running, you may see a warning: make: *** No rule to
make target 'clear'. Stop. This warning can be ignored.
f) If there is any error occurred, you can try to modify the content of the
file mjpg-streamer/plugins/input_uvc/input_uvc.c,
changing V4L2_PIX_FMT_MJPEG to V4L2_PIX_FMT_YUYV
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