Difference between revisions of "Blog 10"

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(→‎Push menu)
(→‎Push menu)
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Note!
 
Note!
−
You shouldn't delete 11:20, because the script from pushmenu isn't made to to also remove the second line. It only cleans first row with 11:00.  
+
You shouldn't delete 11:20, because the script from pushmenu isn't made to also remove the second line. It only cleans first row with 11:00.  
  
−
Example from the 'Time with load averages'(./time_load) has to look like after removing everything that is not needed:
+
Example from how the 'Time with load averages'(./time_load) has to look like after removing everything that is not needed:
 
  #!/bin/bash
 
  #!/bin/bash
 
   
 
   
Line 41: Line 41:
 
         $DISPL -t $load
 
         $DISPL -t $load
  
−
Now the final script itself:
+
Now the script itself:
  
 
  #!/bin/bash  
 
  #!/bin/bash  
Line 90: Line 90:
 
  done
 
  done
  
−
All the 6 buttons reference to 6 scripts:   
+
All the 6 buttons reference to the 6 scripts:   
 
*1. Temperature
 
*1. Temperature
 
*2. Time  
 
*2. Time  
Line 101: Line 101:
 
  bw_tool -I -D /dev/i2c-1 -a 94 -w 10:00  
 
  bw_tool -I -D /dev/i2c-1 -a 94 -w 10:00  
  
−
The first list can delete the and only turn on 1 of them.
+
The first list with #'s can be deleted, but I made it so that I can change it to my preferences.
−
If you remove it, it wouldn't be a problem on the display but a error.  
+
If you remove Print=ui, the display will start with an empty screen. (What isn't a problem, but you will get error messages on the terminal.)
−
I found out this later, but left the others there because I thought maybe some people would like to start with an other one.
+
The 10:00 will at the start-up it remove everything from display.
−
It directly removes everything from display. (10:00)
 
  
 
  while true; do
 
  while true; do
Line 113: Line 112:
 
   fi
 
   fi
  
−
First it will look if there is a button pressed. If there is no button pressed it will be 00 and then it will be just refresh the last one.  
+
First it will look if there is a button pressed. If there is no button pressed it will be 00, and then it will be just refresh the last one.  
−
When pressed it will directly remove the previous text. Because at the beginning it wil if not 00 is pressed with !=. So, it will directly remove the previous text when pressed.
+
When a button is pressed 10 will directly remove the previous text. Because at the beginning of the code it will check:
 +
If 30:b doesn't check a number that isn't(with !=) 00 it will refresh the display.
 +
So everything will be removed when the button is pressed.
  
 
   if [ $Button  = "20" ]; then  
 
   if [ $Button  = "20" ]; then  
Line 120: Line 121:
 
   fi   
 
   fi   
  
−
Then it will start the while loop. ( while true; do)
+
Then it checks with 6 times if there is a button pressed with the number given in the if statements.  
−
When started it will first look if it detects which button is pressed.  
+
When then for example someone presses button 1 -> 20.
 +
Then it says Print=Showtemp2.
 +
 
  
−
After that I made 6 if statements to check of that button is pressed.
 
 
( to detect which button gives which number:  
 
( to detect which button gives which number:  
 
  bw_tool -I -D /dev/i2c-1 -a 94 -R 30:b
 
  bw_tool -I -D /dev/i2c-1 -a 94 -R 30:b
 
  01
 
  01
 
)   
 
)   
−
Press the number you want to know and press the button.
+
 
  
 
  bw_tool -I -D /dev/i2c-1 -a 94 -w 11:00
 
  bw_tool -I -D /dev/i2c-1 -a 94 -w 11:00
Line 134: Line 136:
  
 
It says it has to place on the line 11:00. ( If you remove that part, it paste the text with the previous one, while refreshing.)  
 
It says it has to place on the line 11:00. ( If you remove that part, it paste the text with the previous one, while refreshing.)  
−
With ./$print he then finally prints every second the information from the button pressed that was last pressed.  
+
With ./$print he then finally prints every second the information from the button pressed that was last pressed. So it would then print out the information from showtemp2.  
  
 
  sleep 1
 
  sleep 1

Revision as of 17:08, 24 September 2015

Push menu

Hello, this time I am finally going to put together what I wanted. I am going to use previous scripts:

  • 1. Temperature (From blog 05)
  • 2. Time with load averages (From blog 04)
  • 3. CPU + GPU (From blog 08)
  • 4. Temperature at weather station (From blog 09)
  • 5. Wind a weather station (From blog 09)
  • 6. Defining Temperature ( not visible on display! ) (From blog 05)

And put them all together in a push button menu. So that I can show the information from the script on the display and use the pushbuttons to control it.

I still had to modify the scripts. But I didn't want to change them so I made a copy from some: Example: 

cp timer > time_load

I made the scripts more basics, so that they only print the information on screen. ( If I wouldn't do this it will make the screen refresh too much or ignore me pushing the button ) So the things I had to remove from the scripts were:

  • while true; do
  • done
  • echo
  • 10:00
  • 11:00
  • sleep

Note! You shouldn't delete 11:20, because the script from pushmenu isn't made to also remove the second line. It only cleans first row with 11:00.

Example from how the 'Time with load averages'(./time_load) has to look like after removing everything that is not needed: 

#!/bin/bash

DISPL="bw_tool -I -D /dev/i2c-1 -a 94"

       load=`cut -d' ' -f-3 /proc/loadavg`
       $DISPL -t `date +%H:%M:%S`
       $DISPL -W 11:20:b
       $DISPL -t $load

Now the script itself: 

#!/bin/bash 

#Print=showtemp2
#Print=time_load
#Print=DIAMoscow2
#Print=cgpu2
#Print=DIAMWind
Print=ui
bw_tool -I -D /dev/i2c-1 -a 94 -w 10:00 

while true; do
  Button=`bw_tool -I -D /dev/i2c-1 -a 94 -R 30:b`
  
  if [ $Button  != "00" ]; then 
    bw_tool -I -D /dev/i2c-1 -a 94 -w 10:00
  fi

  if [ $Button  = "20" ]; then 
    Print=showtemp2
  fi  

  if [ $Button  = "10" ]; then 
    Print=time_load
  fi 

  if [ $Button  = "08" ]; then 
    Print=cgpu2
  fi

  if [ $Button  = "04" ]; then 
    Print=DIAMoscow
  fi

  if [ $Button  = "02" ]; then 
    Print=DIAMWind
  fi

  if [ $Button  = "01" ]; then 
    Print=ui
  fi

  bw_tool -I -D /dev/i2c-1 -a 94 -w 11:00
  ./$Print

  sleep 1
done

All the 6 buttons reference to the 6 scripts:

  • 1. Temperature
  • 2. Time
  • 3. CPU + GPU
  • 4. Temperature at weather station
  • 5. Wind at weather station
  • 6. ui
Print=ui
bw_tool -I -D /dev/i2c-1 -a 94 -w 10:00

The first list with #'s can be deleted, but I made it so that I can change it to my preferences. If you remove Print=ui, the display will start with an empty screen. (What isn't a problem, but you will get error messages on the terminal.) The 10:00 will at the start-up it remove everything from display. 

while true; do
  Button=`bw_tool -I -D /dev/i2c-1 -a 94 -R 30:b`
  
  if [ $Button  != "00" ]; then 
    bw_tool -I -D /dev/i2c-1 -a 94 -w 10:00
  fi

First it will look if there is a button pressed. If there is no button pressed it will be 00, and then it will be just refresh the last one. When a button is pressed 10 will directly remove the previous text. Because at the beginning of the code it will check: If 30:b doesn't check a number that isn't(with !=) 00 it will refresh the display. So everything will be removed when the button is pressed. 

  if [ $Button  = "20" ]; then 
    Print=showtemp2
  fi

Then it checks with 6 times if there is a button pressed with the number given in the if statements. When then for example someone presses button 1 -> 20. Then it says Print=Showtemp2.


( to detect which button gives which number: 

bw_tool -I -D /dev/i2c-1 -a 94 -R 30:b
01

) 


bw_tool -I -D /dev/i2c-1 -a 94 -w 11:00
./$Print

It says it has to place on the line 11:00. ( If you remove that part, it paste the text with the previous one, while refreshing.) With ./$print he then finally prints every second the information from the button pressed that was last pressed. So it would then print out the information from showtemp2. 

sleep 1

Thanks to the sleep you now have to wait a second for the refresh of the screen but also for the code to scan which button has been pressed.

I hope this can also be useful for your own use!

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