Flashing Keyboard lights as patterns - maemo.org

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	MohammadAG	2010-05-09 , 15:18
	Posts: 2,473 \| Thanked: 12,265 times \| Joined on Oct 2009 @ Jerusalem, PS/IL	#1

After putting the device into R&D 4-5 months ago, I got the idea of using the keyboard lights as a VU meter. Last week I started looking into it and came up with a flashing pattern (similar to Knight Rider, as lcuk likes to call it

)

http://www.youtube.com/watch?v=g3pvdFpA1II

Here's the script for this pattern:
http://mohammadag.ucoz.com/maemo/KR.sh
As it is, the above script is just for fun (won't do anything other than flashing the keyboard)

lcuk also pythonized it and added it to two apps, one is mostly just a proof of concept (should also play the Knight Rider music if you have mplayer installed)

.deb package: http://mohammadag.ucoz.com/maemo/kni...er_0.1_all.deb run it from terminal as root, by executing "python /opt/liqbase/KR/KR.py" (without the quotes)
.py file (for developers, it can be imported and used as a loading/busy indicator), by lcuk, http://mohammadag.ucoz.com/maemo/KR.py

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	lcuk	2010-05-09 , 15:45
	Posts: 1,635 \| Thanked: 1,816 times \| Joined on Apr 2008 @ Manchester, England	#2

maemo.org. A shadowy flight into the dangerous world of a man who does not exist.

Mohammad AG, a young loner on a crusade to champion the cause of the innocent, the helpless, the powerless, in a world of criminals who operate above the law.

__________________
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like what i say? hit the Thanks, thanks!
twitter.com/lcuk

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brog	2010-05-09 , 16:35
Posts: 165 \| Thanked: 94 times \| Joined on Nov 2009	#3

Is it possible to tell the script to run e.g. 5 times in a row so it lasts a little longer?

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	lcuk	2010-05-09 , 16:38
	Posts: 1,635 \| Thanked: 1,816 times \| Joined on Apr 2008 @ Manchester, England	#4

yeah brog
thats easy
you see on the KR.py script it flashes a couple of times on startup

its simple to just adjust the loop and make it longer

i took this script and used it to make a 6key chord - pressing keys anywhere near the LED makes it light up and stay lit up indicating the mode.
turns the keyboard from 38 keys to 6

a bit of example code is posted here

http://twitter.com/lcuk/status/13642303906
http://liqbase.net/stuff/liqbubbles2.py

__________________
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	MohammadAG	2010-05-09 , 16:41
	Posts: 2,473 \| Thanked: 12,265 times \| Joined on Oct 2009 @ Jerusalem, PS/IL	#5

Which reminds me, here's a manually made (yes, it was a pain) list of keycodes for the N900's QWERTY keymat - sorted by LEDs (which LED is closest to the key) (thanks go to qwerty12 for the xev binary)

Code:

LED1:
Backspace - 22
Enter - 36
Up - 111
Down - 116
Left - 113
Right - 114

LED2:
; - 59
. - 60
P - 33
O - 32
L - 46
Space - 65

LED3:
I - 31
J - 44
K - 45
U - 30
M - 58

LED4:
Y - 29
H - 43
N - 57
T - 28
G - 42
B - 56
F - 41
R - 27

LED5:
V - 55
E - 26
D - 40
C - 54
W - 25
S - 39
X - 53

LED6:
Ctrl - 37
Shift - 50
Blue arrow - 108
Z - 52
A - 38
Q - 24

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brog	2010-05-09 , 16:43
Posts: 165 \| Thanked: 94 times \| Joined on Nov 2009	#6

This could be nice when playing emulators. Thinking of having only the keys lit that you use

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Rapparee	2010-05-09 , 16:53
Posts: 112 \| Thanked: 28 times \| Joined on Nov 2009	#7

Originally Posted by brog

Is it possible to tell the script to run e.g. 5 times in a row so it lasts a little longer?

Can you point out where i can maybe slow it down a little

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	lcuk	2010-05-09 , 17:08
	Posts: 1,635 \| Thanked: 1,816 times \| Joined on Apr 2008 @ Manchester, England	#8

rapparee - in the scripts there are pauses added by different means

bash
gsleep 0.05

python:
time.sleep(0.02)

alter as required

__________________
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like what i say? hit the Thanks, thanks!
twitter.com/lcuk

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	santiago	2010-05-09 , 17:25
	Posts: 518 \| Thanked: 334 times \| Joined on Mar 2010 @ italy	#9

is it possible to make an app that wokrs with different patterns for

sms, mms, call, simple digits etc?

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	lcuk	2010-05-09 , 17:29
	Posts: 1,635 \| Thanked: 1,816 times \| Joined on Apr 2008 @ Manchester, England	#10

santiago - sure eventually i see that happening
it makes a really bright indicator for some things and its eye catching
however it only works when the keyboard is slid open for obvious reasons

__________________
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twitter.com/lcuk