Kindle digital photo frame part 5: testing and finalizing

The scripting and programming is mostly complete. Time to test the Kindle. For the purpose of testing, I set the Kindle to change screensavers every 5 minutes instead of every 3 hours. It works flawlessly for hours at a time, then fails. It always fails in the same way: displaying no picture in screensaver mode. Even manually pressing the button power twice does not solve it. Perhaps the Blanket program crashed or something, I don't know, but it fixes itself after a restart.

After hours of debugging I still cannot figure out what the problem is. Decided to call it quits, but added a recovery option should that happen. I installed KUAL and kterm, so that after a reboot I can manually run my screensaver changing script again.

Finally, I decided to consolidate both the script to change screensavers and that to download images. Here's the final masterpiece:

	# time to wake up
	lipc-set-prop com.lab126.powerd wakeUp 1
	sleep 3
	mntroot rw
	# download new images
	lipc-set-prop com.lab126.cmd wirelessEnable 1
	sleep 20
	url=http://yourOwnURLhere.com
	rm index
	wget $url/images/index || error_exit "Cannot download list of images!"
	grep "/img/uploads" index | awk -F\" '{print $2}' > /mnt/us/images.txt
	cd pics
	while read line
	do
	wget $url$line
	done < /mnt/us/images.txt
	# mark all images as downloaded
	wget $url/images/reset
	rm reset
	lipc-set-prop com.lab126.cmd wirelessEnable 0
	# randomize current set of photos
	for f in /mnt/us/photos/*
	do
	newfile=`mktemp -p /mnt/us/photos`
	mv -f $f $newfile
	done
	# if pics are downloaded, then choose between a pic and a photo
	if [ "$(ls -A /mnt/us/pics)" ]
	then
	# 50% probability of displaying pic or photo
	if [ `sed 's/[^[:digit:]]\+//g' < /dev/urandom | head -n 1 | awk '{print substr($0,0,2);}'` -lt 50 ]
	then
	# display a downloaded pic
	echo displaying a downloaded pic
	mv -f "/mnt/us/pics/`ls /mnt/us/pics -1 | head -n 1`" /mnt/us/linkss/screensavers/bg_xsmall_ss00.png
	else
	# display a photo
	echo displaying a photo
	cp "/mnt/us/photos/`ls /mnt/us/photos | sort | head -n 1`" /mnt/us/linkss/screensavers/bg_xsmall_ss00.png
	fi
	else
	# no pics currently, just change to a photo
	cp "/mnt/us/photos/`ls /mnt/us/photos | sort | head -n 1`" /mnt/us/linkss/screensavers/bg_xsmall_ss00.png
	fi
	/usr/bin/powerd_test -p
	a=0
	while [ $a -lt 50 ]
	do
	lipc-set-prop com.lab126.powerd deferSuspend 86400
	sleep 2
	a=`expr $a + 1`
	done

view raw gistfile1.txt hosted with ❤ by GitHub

I've reset the screensavers to change every 3 hours instead of 5 minutes. It'll still be a few days before I present this to my girlfriend, a final few days to test and make sure it works perfect!