NickelMenu: An integrated launcher for Kobo eReaders

[Aleron Ives]

As far as I can tell, Kobo's battery meter has significant drift based on your charging habits. If you try to follow the guidance of keeping the battery between 25 - 75%, the meter starts to think that 75% charged is 100% charged, because it never goes above that point. I now have a > 20% disparity between what the battery icon reports and what the voltage indicates about the charge level. I'll try doing a full charge next time to see if I can get them to line up again.

[WormGod]

Originally Posted by DNSB

Just curious as to whether anyone has modified the battcalc.sh script for other Kobo ereaders? As far as I can tell, the Clara HD and Sage only supply two of the values so not that informative.

I've been playing around with it off and on on the Clara HD, and it looks like the values that it has are:

-rw-r--r-- 1 root root 4096 Jun 7 09:47 uevent
-r--r--r-- 1 root root 4096 Jun 7 09:48 status
-r--r--r-- 1 root root 4096 Jun 7 09:48 time_to_full_now
-r--r--r-- 1 root root 4096 Jun 7 09:48 capacity
-r--r--r-- 1 root root 4096 Jun 7 09:48 voltage_now
-rw-r--r-- 1 root root 4096 Jun 7 09:48 voltage_min_design
-r--r--r-- 1 root root 4096 Jun 7 09:48 type
-r--r--r-- 1 root root 4096 Jun 7 09:48 time_to_empty_now
-r--r--r-- 1 root root 4096 Jun 7 09:48 temp
-r--r--r-- 1 root root 4096 Jun 7 09:48 technology
-r--r--r-- 1 root root 4096 Jun 7 09:48 present
drwxr-xr-x 2 root root 0 Jun 7 09:48 power
-r--r--r-- 1 root root 4096 Jun 7 09:48 health
-r--r--r-- 1 root root 4096 Jun 7 09:48 current_now

Unfortunately, no voltage_max or charge_full.

[jillmess]

Originally Posted by Aleron Ives

I made an update for my battery statistics calculation script.

I have obviously missed doing something basic in trying to set this up on my libra 2. What am I doing wrong?

[Aleron Ives]

My guess would be that you copied the script into a text editor that uses Windows line endings (CRLF), instead of Linux line endings (LF). You need to use a different text editor, such as Notepad++, to convert the script to Linux line endings. I use MadEdit for such purposes, myself.

[jillmess]

Originally Posted by Aleron Ives

My guess would be that you copied the script into a text editor that uses Windows line endings (CRLF), instead of Linux line endings (LF). You need to use a different text editor, such as Notepad++, to convert the script to Linux line endings. I use MadEdit for such purposes, myself.

I did use notepad++ but will check the line endings. Thanks.

Edit: Telnet to my libra 2 shows the file structure to be similar to the Clara HD listed a couple of posts above.

[mergen3107]

Here is what is available for Kobo Clara HD in battcalc.sh:

# Battery Statistics Calculator 1.1 (2024-05-25) by Aleron Ives
# Modified for Kobo Clara HD by mergen3107
# This script calculates battery statistics for the Kobo Libra 2.
# Check the contents of /sys/class/power_supply/ if you use a different
# model to ensure that the statistics you want to track are available.
#
# You can use NickelMenu to invoke this script like so:
# menu_item :main :Battery :cmd_output :500 :/mnt/onboard/.adds/battcalc.sh

# Gather the necessary statistics
meter=$(cat /sys/class/power_supply/mc13892_bat/capacity)
v_now=$(cat /sys/class/power_supply/mc13892_bat/voltage_now)
health=$(cat /sys/class/power_supply/mc13892_bat/health)
temp=$(cat /sys/class/power_supply/mc13892_bat/temp)

# Format the statistics
let v_now/=1000;
let temp/=10;

echo Capacity: $meter %
echo Voltage: $v_now mV
echo Health: $health
echo Temperature: $temp °C

"Health" is only a word ("Good" in my case).

Thanks everyone for NickelMenu and this script!

[Aleron Ives]

What does the voltage claim to be if you charge to 100% and then use the Clara for a little while? You'll probably see a nonsensical value like 4.8 V at first, but once it drops, you may be able to estimate what v_max is in order to do the voltage calculations.

[baursak]

I see two possible options in NickelMenu Documentation for 'to rescan books'

menu_item : library : Import books : nickel_misc : rescan_books_full

menu_item : library : ??? : nickel_misc : rescan_books

What shall I use to get rid of errors during USB connect with Calibre on PC?

[hatuluang]

Originally Posted by baursak

I see two possible options in NickelMenu Documentation for 'to rescan books'

menu_item : library : Import books : nickel_misc : rescan_books_full

The structure of the code:
menu_item:<location>:<label>:<action>:<arg>

menu_item
Adds a menu item.

<label>
you can give a name for the item (command/shortcut), e.g. Import Books

<location>
You can choose where to put the location of the item
main - a new item will be added to the tabs on the bottom-right of Kobo main page/homepage
reader - the overflow menu in the reader/reading page
browser - the menu in the bottom-right of the web browser
library - the menu in the filter bar for the "My Books" and "My Articles" library

<action>
nickel_misc

<arg>
rescan_books_full

so,

 menu_item : library : Import books : nickel_misc : rescan_books_full

The command import books will be located in my books and my articles pages.
The command rescan_book_full means that Kobo will scan all its folders to display the new file if exist.
This action imitates Kobo's action when ejected from the PC after sideloading book or after take a screenshot.

What shall I use to get rid of errors during USB connect with Calibre on PC?

When you are disconnecting/eject your Kobo from PC, wait until the Kobo homepage appear and the window preview pop-up to inform that Computer detected, you will ask to connect to PC or cancel. You can choose cancel and safely unplug the USB cable from your PC

You may use USB connect without have to unplug/replug, use the following in Nickelmenu:

Code:

menu_item : main    : USB Connect        : nickel_misc    : force_usb_connection

[baursak]

Originally Posted by hatuluang

 menu_item : library : Import books : nickel_misc : rescan_books_full

The command import books will be located in my books and my articles pages.
The command rescan_book_full means that Kobo will scan all its folders to display the new file if exist.
This action imitates Kobo's action when ejected from the PC after sideloading book or after take a screenshot.

Thank you
1. What does the command 'rescan_books' mean?
2. Is there any possibility to tell NickelMenu that scanning should be done in a particular folder only? (I would like to hide from NickelMenu a folder with FB2 books for KOReader)

[hatuluang]

Originally Posted by baursak

Thank you
1. What does the command 'rescan_books' mean?
2. Is there any possibility to tell NickelMenu that scanning should be done in a particular folder only? (I would like to hide from NickelMenu a folder with FB2 books for KOReader)

1. Already explain in the previous comment:
The command rescan_book_full means that Kobo will scan all its folders to display the new file if exist.
This action imitates Kobo's action when ejected from the PC after sideloading book or after take a screenshot

2. When you install KOReader, I hope you make a step to prevent Nickel from scanning *nix hidden folders. So Kobo won't scan the folder like .adds folder (KOReader folder is located under .adds folder)

[baursak]

Originally Posted by hatuluang

1. ... The command rescan_book_full means ...

- OK, I saw your information about 'rescan_books_full' command. - But there is also 'rescan_books' command, which meaning I don't know. - Would you please clarify this command?

2. When you install KOReader, I hope you make a step to prevent Nickel from scanning *nix hidden folders. So Kobo won't scan the folder like .adds folder (KOReader folder is located under .adds folder)

- Some people do not advise to put books into folders that can be deleted during software automatic update (e.g. '.adds/koreader'). - How can I modify the RegExp line of code below (in '.kobo/Kobo/Kobo eReader.conf') so that to stop NickelMenu from scanning some user created folder in the Kobo eReader root directory? - Say, '/Showcase' or '/Stack'? - Such a choice might seem odd, however I simply would like to avoid any folder name containing 'book'.

[FeatureSettings]
ExcludeSyncFolders=(\\.(?!kobo|adobe).+|([^.][^/]*/)+\\..+)

- Some people recommend to put in books' folder an empty file '.nomedia', which hopefully may prevent NickelMenu from scanning its contents. - What do you think?