Kindle Display - Versionsgeschichte

StefanStrobel: updated man things

2019-10-16T19:40:31Z

updated man things

Markusbloch: Ersetzung von Forum-Links mit Vorlage Link2Forum

2017-03-19T19:48:24Z

Ersetzung von Forum-Links mit Vorlage Link2Forum

← Nächstältere Version		Version vom 19. März 2017, 21:48 Uhr
Zeile 21:		Zeile 21:
	If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [[Icons]]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>		If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [[Icons]]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>
	For the Kindle Paperwhite the resolution of the SVG must be 758 x 1024 for the Kindle 4 version use 600x800. This is mandatory. Wrong scaled images won't be displayed on the Kindle.<br> Copy the Kindle_Template.svg to <nowiki>/opt/fhem/www/images/</nowiki>.<br><br>		For the Kindle Paperwhite the resolution of the SVG must be 758 x 1024 for the Kindle 4 version use 600x800. This is mandatory. Wrong scaled images won't be displayed on the Kindle.<br> Copy the Kindle_Template.svg to <nowiki>/opt/fhem/www/images/</nowiki>.<br><br>
	Download and install the latest version of the ~~[http://forum.fhem.de/index.php/topic,~~21821~~.msg217617.html#msg217617~~ FReplacer.pm module from fhem Forums], save it to /opt/fhem/FHEM and load the module. You can also restart fhem instead.<br><br>		Download and install the latest version of the {{Link2Forum\|Topic=21821\|Message=217617\|LinkText=FReplacer.pm module from fhem Forums}}, save it to /opt/fhem/FHEM and load the module. You can also restart fhem instead.<br><br>
	All we're doing now is using the FReplacer module to read the SVG template, replace a search pattern with our data and saving it.<br>		All we're doing now is using the FReplacer module to read the SVG template, replace a search pattern with our data and saving it.<br>
	:<code>define kindledisplay FReplacer /opt/fhem/www/images/template1.svg /opt/fhem/www/images/status1.svg 60</code>		:<code>define kindledisplay FReplacer /opt/fhem/www/images/template1.svg /opt/fhem/www/images/status1.svg 60</code>
Zeile 126:		Zeile 126:
	==== Online Screen Saver - Kindle 4 Special Tasks ====		==== Online Screen Saver - Kindle 4 Special Tasks ====
	To get it running on a Kindle 4 you need to change some lines in the OnlineScreenSaver files.<br>		To get it running on a Kindle 4 you need to change some lines in the OnlineScreenSaver files.<br>
	You can find a .diff file for the changes here: ~~[http://forum.fhem.de/index.php/topic,~~21821~~.msg190911.html#msg190911~~ fhem forum]<br>		You can find a .diff file for the changes here: {{Link2Forum\|Topic=21821\|Message=190911\|LinkText=fhem forum}}<br>
	No idea what to do with this file? It just shows you in which lines changes were made and what was changed. I recommend to edit all the files shown in the diff-file locally and then copy the whole package to the kindle first.		No idea what to do with this file? It just shows you in which lines changes were made and what was changed. I recommend to edit all the files shown in the diff-file locally and then copy the whole package to the kindle first.

Markusbloch: Ersetzung von Forum-Links mit Vorlage Link2Forum

2017-03-19T19:31:22Z

Ersetzung von Forum-Links mit Vorlage Link2Forum

← Nächstältere Version		Version vom 19. März 2017, 21:31 Uhr
Zeile 2:		Zeile 2:
	I will show how to configure it with the FileReplacer.pm from Stefan. The "old" method with the special function in MyUtils is not part of this article.		I will show how to configure it with the FileReplacer.pm from Stefan. The "old" method with the special function in MyUtils is not part of this article.

	All of the information shown below is collected from the fhem-forum ~~[http://forum.fhem.de/index.php/topic,~~21821~~.0.html~~ fhem-Forum]. Many thanks to everybody who participated on the development of this information to get it done.Special thanks to "alex" and "stefan" from the board. Further information is from the [http://www.mobileread.com mobileread board].		All of the information shown below is collected from the fhem-forum {{Link2Forum\|Topic=21821\|LinkText=fhem-Forum}}. Many thanks to everybody who participated on the development of this information to get it done.Special thanks to "alex" and "stefan" from the board. Further information is from the [http://www.mobileread.com mobileread board].

	=Hardware requirements=		=Hardware requirements=
Zeile 17:		Zeile 17:
	That's it :)		That's it :)
	===fhem configuration===		===fhem configuration===
	First you need a svg-template. You can find one in the first posting on the ~~[http://forum.fhem.de/index.php/topic,~~21821~~.0.html~~ fhem-Forum] thread. In the template just replace the data with some placeholder you like. Later this placeholder is found via a regular expression and replaced by your data.<br>		First you need a svg-template. You can find one in the first posting on the {{Link2Forum\|Topic=21821\|LinkText=fhem-Forum}} thread. In the template just replace the data with some placeholder you like. Later this placeholder is found via a regular expression and replaced by your data.<br>
	For example, you can set XYZ at the place where the first temperature should be shown and ABC for the first humidity value.<br>		For example, you can set XYZ at the place where the first temperature should be shown and ABC for the first humidity value.<br>
	If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [[Icons]]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>		If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [[Icons]]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>
Zeile 166:		Zeile 166:
	Setting back filesystem in read-only mode		Setting back filesystem in read-only mode
	:<code>mntroot ro</code>		:<code>mntroot ro</code>
	That's it for me. Not working? Ask and look here for help: ~~[http://forum.fhem.de/index.php/topic,~~21821~~.0.html~~ FHEM Forum]		That's it for me. Not working? Ask and look here for help: {{Link2Forum\|Topic=21821\|LinkText=FHEM Forum}}

	=Examples and Pictures=		=Examples and Pictures=

Krikan: Defekten Link reparariert

2017-01-20T08:53:19Z

Defekten Link reparariert

← Nächstältere Version		Version vom 20. Januar 2017, 10:53 Uhr
Zeile 19:		Zeile 19:
	First you need a svg-template. You can find one in the first posting on the [http://forum.fhem.de/index.php/topic,21821.0.html fhem-Forum] thread. In the template just replace the data with some placeholder you like. Later this placeholder is found via a regular expression and replaced by your data.<br>		First you need a svg-template. You can find one in the first posting on the [http://forum.fhem.de/index.php/topic,21821.0.html fhem-Forum] thread. In the template just replace the data with some placeholder you like. Later this placeholder is found via a regular expression and replaced by your data.<br>
	For example, you can set XYZ at the place where the first temperature should be shown and ABC for the first humidity value.<br>		For example, you can set XYZ at the place where the first temperature should be shown and ABC for the first humidity value.<br>
	If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [[~~/Icons~~ Icons]]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>		If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [[Icons]]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>
	For the Kindle Paperwhite the resolution of the SVG must be 758 x 1024 for the Kindle 4 version use 600x800. This is mandatory. Wrong scaled images won't be displayed on the Kindle.<br> Copy the Kindle_Template.svg to <nowiki>/opt/fhem/www/images/</nowiki>.<br><br>		For the Kindle Paperwhite the resolution of the SVG must be 758 x 1024 for the Kindle 4 version use 600x800. This is mandatory. Wrong scaled images won't be displayed on the Kindle.<br> Copy the Kindle_Template.svg to <nowiki>/opt/fhem/www/images/</nowiki>.<br><br>
	Download and install the latest version of the [http://forum.fhem.de/index.php/topic,21821.msg217617.html#msg217617 FReplacer.pm module from fhem Forums], save it to /opt/fhem/FHEM and load the module. You can also restart fhem instead.<br><br>		Download and install the latest version of the [http://forum.fhem.de/index.php/topic,21821.msg217617.html#msg217617 FReplacer.pm module from fhem Forums], save it to /opt/fhem/FHEM and load the module. You can also restart fhem instead.<br><br>

Krikan: Intrawiki-Links korrigiert

2017-01-19T20:38:16Z

Intrawiki-Links korrigiert

← Nächstältere Version		Version vom 19. Januar 2017, 22:38 Uhr
Zeile 19:		Zeile 19:
	First you need a svg-template. You can find one in the first posting on the [http://forum.fhem.de/index.php/topic,21821.0.html fhem-Forum] thread. In the template just replace the data with some placeholder you like. Later this placeholder is found via a regular expression and replaced by your data.<br>		First you need a svg-template. You can find one in the first posting on the [http://forum.fhem.de/index.php/topic,21821.0.html fhem-Forum] thread. In the template just replace the data with some placeholder you like. Later this placeholder is found via a regular expression and replaced by your data.<br>
	For example, you can set XYZ at the place where the first temperature should be shown and ABC for the first humidity value.<br>		For example, you can set XYZ at the place where the first temperature should be shown and ABC for the first humidity value.<br>
	If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [~~http://wiki.fhem.de/wiki~~/Icons Icons]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>		If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [[/Icons Icons]]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>
	For the Kindle Paperwhite the resolution of the SVG must be 758 x 1024 for the Kindle 4 version use 600x800. This is mandatory. Wrong scaled images won't be displayed on the Kindle.<br> Copy the Kindle_Template.svg to <nowiki>/opt/fhem/www/images/</nowiki>.<br><br>		For the Kindle Paperwhite the resolution of the SVG must be 758 x 1024 for the Kindle 4 version use 600x800. This is mandatory. Wrong scaled images won't be displayed on the Kindle.<br> Copy the Kindle_Template.svg to <nowiki>/opt/fhem/www/images/</nowiki>.<br><br>
	Download and install the latest version of the [http://forum.fhem.de/index.php/topic,21821.msg217617.html#msg217617 FReplacer.pm module from fhem Forums], save it to /opt/fhem/FHEM and load the module. You can also restart fhem instead.<br><br>		Download and install the latest version of the [http://forum.fhem.de/index.php/topic,21821.msg217617.html#msg217617 FReplacer.pm module from fhem Forums], save it to /opt/fhem/FHEM and load the module. You can also restart fhem instead.<br><br>

Krikan: Ersetzung www.fhemwiki.de durch wiki.fhem.de

2017-01-19T20:31:53Z

Ersetzung www.fhemwiki.de durch wiki.fhem.de

← Nächstältere Version		Version vom 19. Januar 2017, 22:31 Uhr
Zeile 19:		Zeile 19:
	First you need a svg-template. You can find one in the first posting on the [http://forum.fhem.de/index.php/topic,21821.0.html fhem-Forum] thread. In the template just replace the data with some placeholder you like. Later this placeholder is found via a regular expression and replaced by your data.<br>		First you need a svg-template. You can find one in the first posting on the [http://forum.fhem.de/index.php/topic,21821.0.html fhem-Forum] thread. In the template just replace the data with some placeholder you like. Later this placeholder is found via a regular expression and replaced by your data.<br>
	For example, you can set XYZ at the place where the first temperature should be shown and ABC for the first humidity value.<br>		For example, you can set XYZ at the place where the first temperature should be shown and ABC for the first humidity value.<br>
	If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [http://~~www~~.~~fhemwiki~~.de/wiki/Icons Icons]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>		If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [http://wiki.fhem.de/wiki/Icons Icons]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>
	For the Kindle Paperwhite the resolution of the SVG must be 758 x 1024 for the Kindle 4 version use 600x800. This is mandatory. Wrong scaled images won't be displayed on the Kindle.<br> Copy the Kindle_Template.svg to <nowiki>/opt/fhem/www/images/</nowiki>.<br><br>		For the Kindle Paperwhite the resolution of the SVG must be 758 x 1024 for the Kindle 4 version use 600x800. This is mandatory. Wrong scaled images won't be displayed on the Kindle.<br> Copy the Kindle_Template.svg to <nowiki>/opt/fhem/www/images/</nowiki>.<br><br>
	Download and install the latest version of the [http://forum.fhem.de/index.php/topic,21821.msg217617.html#msg217617 FReplacer.pm module from fhem Forums], save it to /opt/fhem/FHEM and load the module. You can also restart fhem instead.<br><br>		Download and install the latest version of the [http://forum.fhem.de/index.php/topic,21821.msg217617.html#msg217617 FReplacer.pm module from fhem Forums], save it to /opt/fhem/FHEM and load the module. You can also restart fhem instead.<br><br>

StefanStrobel: /* fhem configuration */ angepasst für neue Version des FReplacer Moduls

2014-11-13T16:28:59Z

fhem configuration: angepasst für neue Version des FReplacer Moduls

← Nächstältere Version		Version vom 13. November 2014, 18:28 Uhr
Zeile 21:		Zeile 21:
	If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [http://www.fhemwiki.de/wiki/Icons Icons]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>		If you want to edit the template you can use the free software [www.inkscape.org/de/ Inkscape]. For more information about generating SVGs for fhem please refer to this article [http://www.fhemwiki.de/wiki/Icons Icons]. Most important information is to save the SVG as a "normal SVG" and not as an inkscape SVG.<br>
	For the Kindle Paperwhite the resolution of the SVG must be 758 x 1024 for the Kindle 4 version use 600x800. This is mandatory. Wrong scaled images won't be displayed on the Kindle.<br> Copy the Kindle_Template.svg to <nowiki>/opt/fhem/www/images/</nowiki>.<br><br>		For the Kindle Paperwhite the resolution of the SVG must be 758 x 1024 for the Kindle 4 version use 600x800. This is mandatory. Wrong scaled images won't be displayed on the Kindle.<br> Copy the Kindle_Template.svg to <nowiki>/opt/fhem/www/images/</nowiki>.<br><br>
	Download and install the [http://forum.fhem.de/index.php/topic,21821.~~msg200310~~.html#~~msg200310 FileReplacer~~.pm from fhem Forums], save it to /opt/fhem/FHEM and load the module. You can also restart fhem instead.<br><br>		Download and install the latest version of the [http://forum.fhem.de/index.php/topic,21821.msg217617.html#msg217617 FReplacer.pm module from fhem Forums], save it to /opt/fhem/FHEM and load the module. You can also restart fhem instead.<br><br>
	All we're doing now is to using the ~~FileReplacer~~ module to read the SVG template, replace a search pattern with our data and saving it.<br>		All we're doing now is using the FReplacer module to read the SVG template, replace a search pattern with our data and saving it.<br>
	:<code>define kindledisplay ~~FileReplacer~~ /opt/fhem/www/images/template1.svg /opt/fhem/www/images/status1.svg 60</code>		:<code>define kindledisplay FReplacer /opt/fhem/www/images/template1.svg /opt/fhem/www/images/status1.svg 60</code>
	:<code>attr kindledisplay ~~DoPNG 1~~</code>		:<code>attr kindledisplay PostCommand convert /opt/fhem/www/images/status.svg -type GrayScale -depth 8 /opt/fhem/www/images/status.png 2>/dev/null & </code>
	:<code>attr kindledisplay ~~UTF8~~-~~Encode 1~~</code>		:<code>attr kindledisplay ReplacementEncode UTF-8</code>
	:<code>attr kindledisplay room Display</code>		:<code>attr kindledisplay room Display</code>

	~~DoPNG enabled~~ the ~~generation from~~ SVG to PNG. UTF8-Encode is needed to support special characters.<br>		PostCommand defines that the external command will be issued after the replacement to convert the resulting SVG to a PNG in 8 bit GreyScale mode. UTF8-Encode might be needed to support special characters.
			<br>
	Now just create your mappings:		Now just create your mappings:
	:<code>attr kindledisplay ~~Regex1~~ XYZ </code>		:<code>attr kindledisplay Rep01Regex XYZ </code>
	:<code>attr kindledisplay ~~Expr1 sprintf("~~%.1f~~", ReadingsVal("Sensor1", "Temp1", 0))~~ </code>		:<code>attr kindledisplay Rep01Reading Sensor1:Temp1</code>
	:<code>attr kindledisplay ~~Regex2~~ ABC </code>		:<code>attr kindledisplay Rep01Format %.1f </code>
	:<code>attr kindledisplay ~~Expr2 sprintf("~~%.1f~~", ReadingsVal("Sensor1", "Hum1", 0))~~ </code>		:<code>attr kindledisplay Rep02Regex ABC </code>
	And so on... :) The ~~FileReplacer~~ will replace the pattern XYZ with the ReadingsVal from Sensor1.<br>		:<code>attr kindledisplay Rep02Reading Sensor1:Hum1</code>
			:<code>attr kindledisplay Rep01Format %.1f </code>
			And so on... :) The FReplacer module will replace the pattern XYZ with the ReadingsVal from Sensor1.<br>
	Now check if the PNG is created [http://your-fhem-ip:8083/fhem/www/images/status1.png http://your-fhem-ip:8083/fhem/www/images/KindleDisplay.png]. If so, be happy, the first part is done!<br>		Now check if the PNG is created [http://your-fhem-ip:8083/fhem/www/images/status1.png http://your-fhem-ip:8083/fhem/www/images/KindleDisplay.png]. If so, be happy, the first part is done!<br>
	If you want to ~~change readingVals~~ to ~~something in your language~~ you can ~~try using it~~ like this:		If you want to use more complex Perl expressions to compute the replacement string, you can use the RepExpr attribute instead of RepReading and do someting like this:
	:<code>attr kindledisplay ~~Expr11~~ (ReadingsVal("XY", "Reading", "off") eq "on" ? "An" : "Aus")</code>		:<code>attr kindledisplay Rep11Expr (ReadingsVal("XY", "Reading", "off") eq "on" ? "An" : "Aus")</code>

	If you want to add a "last modified" timestamp to the dispaly, create a placeholder for it in your SVG template (like "last modified lmtime123") and then define a Regex / ~~Expr~~ attribute pair to replace it with the Reading "LastUpdate" from your ~~FileReplacer~~ device:		If you want to add a "last modified" timestamp to the dispaly, create a placeholder for it in your SVG template (like "last modified lmtime123") and then define a Regex / Reading attribute pair to replace it with the Reading "LastUpdate" from your FReplacer device:
	:<code>attr kindledisplay ~~Regex14~~ lmtime123</code>		:<code>attr kindledisplay Rep14Regex lmtime123</code>
	:<code>attr kindledisplay ~~Expr14 ReadingsVal("~~kindledisplay~~", "~~LastUpdate~~", "~~never")</code>		:<code>attr kindledisplay Rep14Reading kindledisplay:LastUpdate:never</code>

	=== Templates ===		=== Templates ===

Micomat am 12. Oktober 2014 um 08:14 Uhr

2014-10-12T08:14:49Z

← Nächstältere Version		Version vom 12. Oktober 2014, 10:14 Uhr
Zeile 1:		Zeile 1:
	This article shows how to configure a Amazon Kindle eBook-Reader as a information display for fhem. Use this manual at your own risk. Jailbreaking a Kindle is quite easy but there is no guarantee for breaking the system.<br>		This article shows how to configure a Amazon Kindle eBook-Reader as a information display for fhem. Use this manual at your own risk. Jailbreaking a Kindle is quite easy but there is no guarantee for breaking the system.<br>
	I will show how to configure it with the FileReplacer.pm from Stefan. The "old" method with the special function in MyUtils is not part of this article.		I will show how to configure it with the FileReplacer.pm from Stefan. The "old" method with the special function in MyUtils is not part of this article.

	~~'''NOTE: This Article is not yet finished! This note will be removed once i think it's okay ;)<br>~~
	~~As long as I'm working on it, this information will be shown.'''~~

	All of the information shown below is collected from the fhem-forum [http://forum.fhem.de/index.php/topic,21821.0.html fhem-Forum]. Many thanks to everybody who participated on the development of this information to get it done.Special thanks to "alex" and "stefan" from the board. Further information is from the [http://www.mobileread.com mobileread board].		All of the information shown below is collected from the fhem-forum [http://forum.fhem.de/index.php/topic,21821.0.html fhem-Forum]. Many thanks to everybody who participated on the development of this information to get it done.Special thanks to "alex" and "stefan" from the board. Further information is from the [http://www.mobileread.com mobileread board].

Micomat: /* fhem configuration */

2014-10-09T20:53:30Z

fhem configuration

← Nächstältere Version		Version vom 9. Oktober 2014, 22:53 Uhr
Zeile 44:		Zeile 44:
	If you want to add a "last modified" timestamp to the dispaly, create a placeholder for it in your SVG template (like "last modified lmtime123") and then define a Regex / Expr attribute pair to replace it with the Reading "LastUpdate" from your FileReplacer device:		If you want to add a "last modified" timestamp to the dispaly, create a placeholder for it in your SVG template (like "last modified lmtime123") and then define a Regex / Expr attribute pair to replace it with the Reading "LastUpdate" from your FileReplacer device:
	:<code>attr kindledisplay Regex14 lmtime123</code>		:<code>attr kindledisplay Regex14 lmtime123</code>
	:<code>attr kindledisplay Expr14 ReadingsVal("~~kindledispay~~", "LastUpdate", "never")</code>		:<code>attr kindledisplay Expr14 ReadingsVal("kindledisplay", "LastUpdate", "never")</code>

	=== Templates ===		=== Templates ===

Micomat: /* Kindle 4 additional tasks */

2014-10-09T20:53:04Z

Kindle 4 additional tasks

← Nächstältere Version		Version vom 9. Oktober 2014, 22:53 Uhr
Zeile 132:		Zeile 132:
	A Kindle 4 differs in a few ways from the later models. It doesn't use upstart but old start up scripts so the online screensaver scripts will not start automatically after a reboot of your kindle. You can either manually start the patched /mnt/base-us/extensions/onlinescreensaver/bin/enable.sh which starts /mnt/base-us/extensions/onlinescreensaver/bin/scheduler.sh as a background process or you can create your own startup script in /etc/init.d or you can create a cron job to periodically update the screen.		A Kindle 4 differs in a few ways from the later models. It doesn't use upstart but old start up scripts so the online screensaver scripts will not start automatically after a reboot of your kindle. You can either manually start the patched /mnt/base-us/extensions/onlinescreensaver/bin/enable.sh which starts /mnt/base-us/extensions/onlinescreensaver/bin/scheduler.sh as a background process or you can create your own startup script in /etc/init.d or you can create a cron job to periodically update the screen.

	Another difference is the power management. The original online screensave was created for a kindle paperwhite which has a real time clock with alarm functions that can be controlled through the sysfs. Utils.sh in the online screensavers bin directory puts the next wake up time in /sys/class/rtc/rtc$RTC/wakealarm to achieve this. So the Paperwhite can sleep most of the time and only wake up to retrieve the latest PNG, display it and go back to sleep. On a Kindle 4 this does not work so the ~~Kinde~~ can not go to sleep and wake up but is has to keep running. Therefore it needs a lot more power than a paperwhite. While the paperwhite might run for two weeks or longer before it needs a recharge (depending on your update frequency) the Kindle 4 will need a recharge after 2 days or a power connection / docking station.		Another difference is the power management. The original online screensave was created for a kindle paperwhite which has a real time clock with alarm functions that can be controlled through the sysfs. Utils.sh in the online screensavers bin directory puts the next wake up time in /sys/class/rtc/rtc$RTC/wakealarm to achieve this. So the Paperwhite can sleep most of the time and only wake up to retrieve the latest PNG, display it and go back to sleep. On a Kindle 4 this does not work so the Kindle can not go to sleep and wake up but is has to keep running. Therefore it needs a lot more power than a paperwhite. While the paperwhite might run for two weeks or longer before it needs a recharge (depending on your update frequency) the Kindle 4 will need a recharge after 2 days or a power connection / docking station.

	As your Kindle 4 needs some more attention to get it done, please find the steps here:		As your Kindle 4 needs some more attention to get it done, please find the steps here: