Blog 18 - Revision history

Cartridge1987: /* Useful links */

2015-12-04T13:53:40Z

Useful links

Cartridge1987: /* Settings Menu */

2015-11-23T12:35:58Z

Settings Menu

Cartridge1987: /* Volume */

2015-11-19T12:09:50Z

Volume

Cartridge1987: /* Settings Menu */

2015-11-19T12:05:45Z

Settings Menu

Cartridge1987: /* Useful links */

2015-11-19T11:13:25Z

Useful links

Cartridge1987: /* Useful links */

2015-11-19T11:07:49Z

Useful links

Cartridge1987: /* Useful links */

2015-11-19T11:07:37Z

Useful links

Cartridge1987: /* Volume */

2015-11-19T11:05:51Z

Volume

Cartridge1987: /* Volume */

2015-11-19T11:04:01Z

Volume

Cartridge1987: /* Volume */

2015-11-19T11:03:47Z

Volume

@@ Line 181: / Line 181: @@
 *[[Blog 09| Temperature Station]], this can give extra information of how to work with grep.
 *[[Blog 13| Scroll Menu]], this can give more explanation about the scripting.
+*[http://linux.die.net/man/1/amixer For more information about the amixer]

@@ Line 5: / Line 5: @@
 *[http://www.bitwizard.nl/shop/raspberry-pi-ui-16x2 RPi_UI board] | ([[User Interface]])
-Programmed in:
+Programmed with:
 *bash
+*[[Bw tool]]
 In this post I will show the menu I made, where you can change the: Backlight, Contrast and Volume.

@@ Line 130: / Line 130: @@
 To script will at the end read at which volume percentage the audio is. With the grep and sed -e it will remove all the information outside the volume percentage. Normally without sed -e it would look like:
   Mono: Playback -600 [91%] [-6.00dB] [on]
-In [[blog 09]] there is a deeper explanation about grep and sed -e.
+In [[blog 09]] there is a deeper explanation about grep and the sed -e.
  #mplayer ru.mp3

@@ Line 11: / Line 11: @@
 The overall script is based on the scroll menu from [[blog 13]].
-The menu you can scroll through with button 5(up) and 6(down). On the screen than will be visible which 2 menu you can go to.
+You can scroll through the menu with button 5(up) and 6(down). On the screen there will be visible which of the 2 menu you can go to.
-With button 1 and 2 you can choose which of the 2 you want to edit.
+With button 1 and 2 you can choose which of the 2 you want to use.
  #!/bin/bash
@@ Line 71: / Line 71: @@
 === Backlight/Contrast ===
-This is the script for changing the backlight. The script for changing the contrast is actually the same. The only difference is that instead of writing to protocol 13 you write to protocol 12.
+This is the script for changing the backlight. The script for changing the contrast is almost the same. The only difference is that instead of writing to protocol 13 you write to protocol 12.
 So
   bw_tool -I -D /dev/i2c-1 -a 94 -W 13:${array[$Number]}
@@ Line 119: / Line 119: @@
  # Name     0  1  2  3  4  5  6  7  8  9  10
+The Array counts in hexadecimals, because protocol 13 and 12 work in hexadecimals. FF is in decimals 255. I just used an easy trick to get a tenth of 255. What is 25.5. What is around 19 in hexadecimals. After that I kept counting 19 up the hexadecimal number, until I reached FF. Now it got good steps between every time up and down.
-The Array counts in hexadecimals. I want to get 10 steps so people who use it could see it would got from zero to 100.
+I made the Narray (text that will get displayed), because it is easer for people to understand 0 till 100, than 00 till FF.
-FF is in decimals 255. I just used an easy trick to get one of a tenth of 255. What is 25.5. What is around 19 in hexadecimals.
-After that I kept counting 19 up the hexadecimal number, until I reach FF. Now it got better steps between the parts.
  [[File:BacklightLow.jpg|400px|thumb|none|]]
@@ Line 129: / Line 128: @@
 The script makes it possible to make the audio 5/10 decibel louder or quieter.
  $DISPL -t `amixer | grep Mono: | sed -e 's/%] .*//' -e 's/.* \[//'`
-To program will at the end read a which % the audio is of it's maximum. With the grep and sed -e files it only search for the wanted text the full text normally would be without sed -e:
+To script will at the end read at which volume percentage the audio is. With the grep and sed -e it will remove all the information outside the volume percentage. Normally without sed -e it would look like:
   Mono: Playback -600 [91%] [-6.00dB] [on]
-This has been also explained in [[blog 09]], if you want more explanation.
+In [[blog 09]] there is a deeper explanation about grep and sed -e.
+ #mplayer ru.mp3
-After the # I put and audio files, this is optional but there you could put a short audio file. So, that you can directly hear how the loud the audio is.
+After every '#' I put an audio file, this is optional but there you could put a short audio file. So, that you can directly hear how loud the audio is.
  #!/bin/bash

@@ Line 178: / Line 178: @@
 == Useful links ==
 *[[User Interface]]
+*[[Blog 09| Temperature Station]], this can give extra information of how to work with grep.
-*[[Blog 09]]
+*[[Blog 13| Scroll Menu]], this can give more explanation about the scripting.
-*[[Blog 13]]

@@ Line 158: / Line 158: @@
    exit
    fi
    if [ $BUTTON  = "02" ]; then
    amixer -c 0 set PCM 10dB-

@@ Line 127: / Line 127: @@
 === Volume ===
+The script makes it possible to make the audio 5/10 decibel louder or quieter.
+ $DISPL -t `amixer | grep Mono: | sed -e 's/%] .*//' -e 's/.* \[//'`
+To program will at the end read a which % the audio is of it's maximum. With the grep and sed -e files it only search for the wanted text the full text normally would be without sed -e:
+  Mono: Playback -600 [91%] [-6.00dB] [on]
+After the # I put and audio files, this is optional but there you could put a short audio file. So, that you can directly hear how the loud the audio is.
  #!/bin/bash
@@ Line 134: / Line 140: @@
  while true; do
  BUTTON=`bw_tool -I -D /dev/i2c-1 -a 94 -R 30:b`
- array=(   00 10 20 30 40 50 60 70 80 90 100 )
- # Element 0  1  2  3  4  5  6  7  8  9  10
    if [ $BUTTON  != "00" ]; then
       bw_tool -I -D /dev/i2c-1 -a 94 -W 10:00
-   fi
-   if [ $BUTTON  = "04" ]; then
-   exit
    fi
@@ Line 155: / Line 154: @@
    #mplayer ru.mp3
    fi
+   if [ $BUTTON  = "04" ]; then
+   exit
+   fi
    if [ $BUTTON  = "02" ]; then
    amixer -c 0 set PCM 10dB-