Blog 21 - Revision history

Cartridge1987: /* Useful links */

2015-12-23T12:31:55Z

Useful links

Cartridge1987: Undo revision 3805 by Cartridge1987 (talk)

2015-12-18T13:10:18Z

Undo revision 3805 by Cartridge1987 (talk)

Cartridge1987: /* !BETA! */

2015-12-18T12:59:31Z

!BETA!

Cartridge1987: /* Useful links */

2015-12-17T11:48:26Z

Useful links

Cartridge1987: /* Connecting the analog meters */

2015-12-17T11:10:16Z

Connecting the analog meters

Cartridge1987: /* DIO Analog meter - Adjustable Timer */

2015-12-17T10:45:46Z

DIO Analog meter - Adjustable Timer

Cartridge1987: /* DIO Analog meter - Clock */

2015-12-17T10:30:50Z

DIO Analog meter - Clock

Cartridge1987: /* Connecting the analog meters */

2015-12-17T10:12:38Z

Connecting the analog meters

Cartridge1987: /* Making the sticker */

2015-12-17T09:10:51Z

Making the sticker

Cartridge1987: /* Connecting the analog meters */

2015-12-16T16:54:46Z

Connecting the analog meters

@@ Line 250: / Line 250: @@
 *[[DIO protocol]]
 *[[User Interface]]
+*[[Blog 22]] - The Arduino version of the above projects.
 *[[Blog list]]

@@ Line 2: / Line 2: @@
 == !BETA! ==
-Hardware used on Arduino:
+This is used for The project:
+Hardware used on Raspberry Pi:
+*[http://www.bitwizard.nl/shop/raspberry-pi-ui-16x2 RPi_UI board] | ([[User Interface]])
 *[http://www.bitwizard.nl/shop/expansion-boards/dio DIO] | ([[DIO]])
 *[http://www.bitwizard.nl/shop/cables-connectors/10-20cm-jumper-cables-m-f Jumper cables M-F]
 *[http://www.bitwizard.nl/shop/cables-connectors/4-pin-cable-f-f 4 PIN I2C cable F-F]
-*Analog meter
+*Analog meters
 Programmed with:
+*Bash
-*Arduino
+*[[Bw tool]]
-*[https://github.com/PaulStoffregen/Time Time Library]
-== Simple Example code ==
-In this code I will show how you can make the Analog meter pointer, be at 50% for ten seconds and being off for 10 seconds.
- #define DIO 0x42
- #include <Wire.h>
- void setup()
- {
-   Wire.begin(); // wake up I2C bus
-   Serial.begin(9600);
-   set_var(0x42, 0x30, 0x01);
-   set_var(0x42, 0x5f, 0x01);
- }
- byte get_var(byte address, byte reg)
- {
-   byte value;
-   Wire.beginTransmission(address);
-   Wire.write(reg);
-   Wire.endTransmission();
-   delayMicroseconds (10);
-   Wire.requestFrom(DIO, 1);
-   value = Wire.read();
-   return value;
- }
- void set_var(byte address, byte reg, byte value)
- {
-   Wire.beginTransmission(address);
-   delayMicroseconds  (10);
-   Wire.write(reg);
-   delayMicroseconds  (10);
-   Wire.write(value);
-   Wire.endTransmission();
- }
- void loop()
- {
-   unsigned long DIOAddress;
-   char buf[32];
-   set_var(0x42, 0x50, 0x80);
-   DIOAddress = get_var(0x50, 0xb);
-   sprintf (buf, "PWM80:  A:%d \r\n", DIOAddress);
-   Serial.write (buf);
-  delay(10000);
-   set_var(0x42, 0x50, 0x00);
-   DIOAddress = get_var(0x50, 0xb);
-   sprintf (buf, "PWM0 :  A:%d \r\n", DIOAddress);
-   Serial.write (buf);
-  delay(10000);
-  }
 == Connecting the analog meters ==

@@ Line 2: / Line 2: @@
 == !BETA! ==
-This is used for The project:
+Hardware used on Arduino:
-Hardware used on Raspberry Pi:
-*[http://www.bitwizard.nl/shop/raspberry-pi-ui-16x2 RPi_UI board] | ([[User Interface]])
 *[http://www.bitwizard.nl/shop/expansion-boards/dio DIO] | ([[DIO]])
 *[http://www.bitwizard.nl/shop/cables-connectors/10-20cm-jumper-cables-m-f Jumper cables M-F]
 *[http://www.bitwizard.nl/shop/cables-connectors/4-pin-cable-f-f 4 PIN I2C cable F-F]
-*Analog meters
+*Analog meter
 Programmed with:
+*Arduino
-*Bash
+*[https://github.com/PaulStoffregen/Time Time Library]
-*[[Bw tool]]
+== Simple Example code ==
+In this code I will show how you can make the Analog meter pointer, be at 50% for ten seconds and being off for 10 seconds.
+ #define DIO 0x42
+ #include <Wire.h>
+ void setup()
+ {
+   Wire.begin(); // wake up I2C bus
+   Serial.begin(9600);
+   set_var(0x42, 0x30, 0x01);
+   set_var(0x42, 0x5f, 0x01);
+ }
+ byte get_var(byte address, byte reg)
+ {
+   byte value;
+   Wire.beginTransmission(address);
+   Wire.write(reg);
+   Wire.endTransmission();
+   delayMicroseconds (10);
+   Wire.requestFrom(DIO, 1);
+   value = Wire.read();
+   return value;
+ }
+ void set_var(byte address, byte reg, byte value)
+ {
+   Wire.beginTransmission(address);
+   delayMicroseconds  (10);
+   Wire.write(reg);
+   delayMicroseconds  (10);
+   Wire.write(value);
+   Wire.endTransmission();
+ }
+ void loop()
+ {
+   unsigned long DIOAddress;
+   char buf[32];
+   set_var(0x42, 0x50, 0x80);
+   DIOAddress = get_var(0x50, 0xb);
+   sprintf (buf, "PWM80:  A:%d \r\n", DIOAddress);
+   Serial.write (buf);
+  delay(10000);
+   set_var(0x42, 0x50, 0x00);
+   DIOAddress = get_var(0x50, 0xb);
+   sprintf (buf, "PWM0 :  A:%d \r\n", DIOAddress);
+   Serial.write (buf);
+  delay(10000);
+  }
 == Connecting the analog meters ==

@@ Line 250: / Line 250: @@
 *[[DIO protocol]]
 *[[User Interface]]
+*[[Blog list]]

@@ Line 33: / Line 33: @@
 I did in projects my positive cable on IO0, what is pin 3. ( The other cable has to go to GND Pin 1 )
 On the wiki page of [[DIO]] you can see, which other pins are IO.
+[[File:DCDIO.jpg|none|300px]]
 === Change meter value through the command line ===

@@ Line 158: / Line 158: @@
 == DIO Analog meter - Adjustable Timer ==
-In this script I made an adjustable timer. That will let the meter go from maximum PWM to zero. ( Pointer from right to left )
+In this script I made an adjustable timer. That will let the meter go form the right to left and after that the raspberry pi will play a song.
-That you just use in the command line, with the given value after it. With the value you say how many seconds the script should be running.
-So, if you give it the value 30 it should look like this:
- ./Scriptname 30
+The time of how long the progress has to take can be given after the script name.
+So, if you want the timer to take 30 seconds, it should look like this:
+ ./"Scriptname" 30
+The explanation of the script:
 Here it will give the amount of seconds the date program knows and give it to the variable Start.
 The variable Seconds will get the value put after the script name (as in the example above with the value 30 )
-(Idea: You can also change the Seconds value "$1" with the amount of seconds you want. )
+( You can also change the Seconds value "$1" with the amount of seconds you want. )
 The end variable counts the seconds and start variable together. I use this later in the script, so that it then knows when it reached it's maximum value.
@@ Line 172: / Line 174: @@
  End=$(($Seconds + $Start))
-The now variable gets in the while true list used to read every time to look at which second it is now.
+The now variable gets in the while true list, and is used to read every time to look at which second it is now.
 In progress the end(where the time ends) and now get counted of each other.
-The pwm value then gets calculated. What gives the percentage of 255 is used.
+The PWM value gets calculated. What gives the percentage of 255 is used.
  Now=`date +%s`
@@ Line 181: / Line 183: @@
 Here is gives the hexadecimal output of the PWMValue.
-So the maximum value 255 would be FF.
+(So for example, the maximum value 255 would be FF.)
  PWMValueHex=`(echo obase=16; echo $PWMValue ) | bc`
-Here the the result gets send to the DIO and to the user interface. What makes that the analog meter is going to move and that on the display is visible what hexadecimal value it is. ( The user interface part can be removed if not needed )
+Here the the result gets send to the DIO and to the user interface. What makes that the analog meter is going to move and that on the display is visible what hexadecimal value it is.
  $DIO -W 50:$PWMValueHex
@@ Line 192: / Line 194: @@
  $UI -t "Hex Value: " $PWMValueHex
-In the onexit it looks if the now value has gotten equal of higher then the given end value, where it should have stopped. When the end value is getting passed the onexit function is going to run. Otherwise it will just sleep 1 second, and after that look again if it reached it's point yet.
+In the onexit it looks if the now value has gotten equal of higher then the given end value, where it should have stopped. When the end value is getting reached or passed the onexit function is going to run.
  if [ "$Now" -ge "$End" ]; then

@@ Line 74: / Line 74: @@
 == DIO Analog meter - Clock ==
-With this script, I am going to make  on the analog meter visible how late it it.
+With this script, I made it possible to show how late it is on the analog meter.
-For now I only have one analoge meter that works, so I will only show how late it's in hours.
+For now I only have one analog meter that works, so I will only show how late it's in hours.
 The script is pretty easy to understand, but I will still give some parts explanation.
 This is the onexit script, What it does is when the script crashes or this function get named by the script. I will do the given commands and then exit the running script.
-So, in my case it turns the PWM back to zero on pin 3 IO0, which makes the pointer go back to the left. If you use a different Pin and don't know which one to use you have to look at
+So, in my case it turns the PWM back to zero on pin 3 (IO0), which makes the pointer go back to the left. It after that clears the screen. If you use a different Pin and don't know which one to use you have to look at
 the [[DIO Protocol]] page.
@@ Line 90: / Line 90: @@
    }
-This obviously looks at which hour it's and puts it in the directory name Hour.
+This looks at what hour it's and puts it in the directory name Hour.
     Hour=`date +%H`
-What then gets printed on the display.
+What gets printed on the display.
    $UI -t "Clock=" $Hour
-The if statement looks at which hour there is given and looks if it is greater than the given value in $Twelve.
+The if statement looks at which hour there is given and looks if it is greater than the given value in $MAX.
 If it is 12 o’clock or later it will subtract 12 of it.
-So, for example 18 will be 6.
+So, for example 18 will become 6.
    if [ "$Hour" -gt "$MAX" ]; then
@@ Line 111: / Line 111: @@
    # Element 0  1  2  3  4  5  6  7  8  9  10 11
-After that one the second row of the LCD display the value will be printed of the new hour ( if it is above 12 ) and the hexadecimal value in the array.
+On the second row of the LCD display the value will be printed of the new hour ( if it is above 12 o'clock value ) and the hexadecimal value in the array.
    $UI -W 11:20

@@ Line 17: / Line 17: @@
 == Connecting the analog meters ==
-While making the analog meter clock, I encountered the problem. That I had one Alternating current voltage. For this I had to
+While making the analog meter clock, I encountered a problem. That I had one Alternating current voltage.
+So I had to make from the AC meter a DC meter.
+For this I checked it out by putting the power resource after the diode.
-// blabla
-checked it out by putting the power resource after the diode.
-To check the analog meter I connected it with a power resource to find out if at which voltage it went to it's maximum.
+When I connected the meter with a power resource, I directly found out it goes to fast to it's maximum.
-Fast I found out that It went to it's maximum. To change that it went so fast to it's maximum I added two resistors.
+To change that it went so fast to it's maximum I added two resistors. The DIO should give 5 volt.
-And removed the connection with the normal resistor.
-// blabla
 To check if the meter you have work on the DIO.
-Put the minus part of your meter on the GND(Pin 1), and the positive side on the VCC(Pin 2).
+Put the minus part of the meter on the GND(Pin 1), and the positive on the VCC(Pin 2).
-The pointer will directly go to it's to the right.
+The pointer from the meter will directly go to the right.
-( If he doesn't you have to remove some resistors )
+( If he doesn't you have to change resistors, or look if everything is well connected )
-To connect the meters on the DIO:
+To connect the meter with the DIO:
-I did my positive cable on IO0, what is pin 3. ( The other cable has to go to GND Pin 1 )
+I did in projects my positive cable on IO0, what is pin 3. ( The other cable has to go to GND Pin 1 )
-On the wiki page of [[DIO]] you can see, which pin is what.
+On the wiki page of [[DIO]] you can see, which other pins are IO.
-=== Change analog meter value through the command line ===
+=== Change meter value through the command line ===
 Recommended to use the [[DIO protocol]].
@@ Line 42: / Line 40: @@
 I have in my example the analog meter connected with pin 3(IO0).
-Pin 3 is IO0, so it will get the first value and that is one.
+Pin 3 is IO0, so it will get the first value one.
+If you are going to change from pin you have to do all three commands, otherwise you have to do the first two commands only once.
 To set pin 3 as output:
@@ Line 52: / Line 51: @@
 To let the pointer go to 50% of the analog meter:
  bw_tool -I -D /dev/i2c-1 -a 84 -W 50:80
-The value is in hexadecimals so that is why 80 is 50%. If you did the commands above you can keep changing values if you still use the same pin(s).
+The value is in hexadecimals so that is why 80 is 50%.
 If you are going to use a pin like pin 10(IO6).
@@ Line 68: / Line 67: @@
 For making the sticker I first measured what the distance are from the the maximum and the minimum(0). I looked at the distance from horizontal and vertical.
-After that I made a picture of the meter. I used the program to make the lines an put the image in the background. So, I know where to put where.
+After that I made a picture of the meter. I used the program xfig to make the lines and put the image in the background. So, I know what to put where.
-I had of course had to resize some part. After that I printed it out on a sticker paper, what I then put on my meter. It can be tricky work to do a sticker on the meter, so it is recommended to use a tweezers. ( Or something else where you can hold it good ) I used my fingers and that had the problem that my picture was not precisely placed.
+After that I printed it out on a sticker paper, what I then put on my meter. It can be tricky work to do a sticker on a meter, so it is recommended to use tweezers. ( Or something else where you can hold it well with ) I used my fingers and that had the problem that my picture was not precisely placed.
 [[File:DClock.jpg|none|300px]]