Blog 24 - Revision history

Rew: Undo revision 4034 by Nancygo (talk)

2016-04-29T11:46:21Z

Undo revision 4034 by Nancygo (talk)

Nancygo: /* Making the construction */

2016-04-29T11:03:45Z

Making the construction

Cartridge1987: /* The code */

2016-01-11T16:41:02Z

The code

Cartridge1987: /* Useful links */

2016-01-11T15:51:18Z

Useful links

Cartridge1987: /* The code */

2016-01-08T15:46:40Z

The code

Cartridge1987: /* The code */

2016-01-08T15:11:02Z

The code

Cartridge1987: /* The code */

2016-01-08T14:41:44Z

The code

Cartridge1987: /* Resetting the WS2812 */

2016-01-08T11:37:04Z

Resetting the WS2812

Cartridge1987: /* Resetting the WS2812 */

2016-01-08T11:32:47Z

Resetting the WS2812

Cartridge1987: /* Useful links */

2016-01-08T10:35:14Z

Useful links

@@ Line 63: / Line 63: @@
 Paper tree:
 The paper tree is made by folding a green paper. On the folded green paper I put my RGB led connection. Around the RGB led I drew a Christmas tree. At the points where every single RGB led were laying I put a dot by using a pencil.
-After that I cut the tree out and made holes at the pencil dots. After that I used some scotch tape to bring the front and back paper together. Similar scheme with instructions were at http://essaydune.com. The final result:
+After that I cut the tree out and made holes at the pencil dots. After that I used some scotch tape to bring the front and back paper together. The final result:
 [[File:RGBTree2.jpg|none|400px]]
 You can of course go all crazy with the tree by adding glitters and stuff like that.
 === The code ===

@@ Line 63: / Line 63: @@
 Paper tree:
 The paper tree is made by folding a green paper. On the folded green paper I put my RGB led connection. Around the RGB led I drew a Christmas tree. At the points where every single RGB led were laying I put a dot by using a pencil.
-After that I cut the tree out and made holes at the pencil dots. After that I used some scotch tape to bring the front and back paper together. The final result:
+After that I cut the tree out and made holes at the pencil dots. After that I used some scotch tape to bring the front and back paper together. Similar scheme with instructions were at http://essaydune.com. The final result:
 [[File:RGBTree2.jpg|none|400px]]
 You can of course go all crazy with the tree by adding glitters and stuff like that.
 === The code ===

@@ Line 77: / Line 77: @@
 This is the list of colors, with their given RGB values. This gets invoked later in the script to give the right color value.
- #define WHITE  0xffffff
+ #define WHITE  0x808080
- #define YELLOW 0xffff00
+ #define YELLOW 0x808000
  #define RED    0x800000
  #define GREEN  0x008000
- #define BLUE   0x0000ff
+ #define BLUE   0x000080
  #define BLACK  0x000000
 <!--Because it's RGB ( red green blue ) the first two numbers after 0x can be used for changing the red color value. The middle two numbers are for the amount of green and the last two are for blue. With RGB you can mix the colors into different colors. -->
@@ Line 93: / Line 93: @@
 It will give new values to c1 and c2 it will bit shift it to the right, and give it the value together with 0xff.
 After that it calculates difference between previous color. The value would be send back which then could be printed out in the terminal in that display.
+The bit shifting to the right is needed to
  int interpolate (int c1, int c2, int shift, int pos, int end)
@@ Line 106: / Line 109: @@
 Void fadeto receives the information from int main for example: (5, RED, GREEN).
 It will give the information to every single part of the RGB led. So in this example it would be that red will change from 80 to 00.
+The reason for making it 80, instead of FF is to makes the light not hurting your eyes.
 it will keep doing calculations of the steps until it reached 30(nfadesteps).
-After that it prints out on the certain RGB led that given color values.
+After that it prints out on the certain RGB led that given color values. It also print that information in the C-Kermit terminal.
  void fadeto (int pixnum, int col1, int col2)

@@ Line 177: / Line 177: @@
 *[http://www.columbia.edu/kermit/ckscripts.html#top C-Kermit tutorial]
 *[http://www.columbia.edu/kermit/ckututor.html C-Kermit manual page and tutorial]
-*[https://en.wikipedia.org/wiki/Operators_in_C_and_C%2B%2B Operator list of C]
+*[https://en.wikipedia.org/wiki/Operators_in_C_and_C%2B%2B C Operator list]
 *[http://www.cplusplus.com/ C programming site]

@@ Line 86: / Line 86: @@
 ( The first two numbers behind 0x are for Red. The second two numbers are for green and the last two are for blue. )
-Here the amount of time and steps in milliseconds is given for to make the fading go fluent. ( later used in the script )
+Here the amount of time in milliseconds and steps given for to make the fading go fluent. ( later used in the script )
  int nfadesteps = 30;
  int delayms = 30;
-In interpolate it will get the values from fadeto three times ( for every color r, g & b )
+In interpolate it will get the values from fadeto three times ( for every color r, g & b ).
 It will give new values to c1 and c2 it will bit shift it to the right, and give it the value together with 0xff.
-After that it calculates difference between previous color.
+After that it calculates difference between previous color. The value would be send back which then could be printed out in the terminal in that display.
  int interpolate (int c1, int c2, int shift, int pos, int end)
@@ Line 105: / Line 105: @@
 Void fadeto receives the information from int main for example: (5, RED, GREEN).
-It will give the information to every single part of the rgb led. So in this example it would be that red will change from 80 to 00.
+It will give the information to every single part of the RGB led. So in this example it would be that red will change from 80 to 00.
 it will keep doing calculations of the steps until it reached 30(nfadesteps).
 After that it prints out on the certain RGB led that given color values.

@@ Line 76: / Line 76: @@
 The parts of the script that I will give some explanation:
-Here I made a list of colors(if you also want other colors search for: color table):
+This is the list of colors, with their given RGB values. This can be invoked by typing the capital name.
  #define WHITE  0xffffff
  #define YELLOW 0xffff00

@@ Line 40: / Line 40: @@
 == Resetting the WS2812 ==
-Maybe you will get the experience that the ws2812 crashes and has to be reseted. When the RGB leds are still attached they will give a rainbow effect. To reset the WS2812 you have put a male-female cable on pin 5 on the horizontal connector. The male part of the connector should then hit the ground once. The grounds on the ws2812 are the odd numbers for the 16 pins.
+Maybe you will get the experience that the ws2812 crashes and has to be reseted. When the RGB leds are still attached they will give a rainbow effect. To reset the WS2812 you have to put a cable in pin 5 of the 6 pin connector with a ground.  The ground of the ws2812 is every odd number on the 16 pin connector.
 After that you can do the previous commands and everything should work fine again.