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Difference between revisions of "ChristmasTree2012"

From Francois Louw

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So for 2012 I dont want just any boring tree, I want to make one myself with a bunch of LEDs and a PIC that I have lying around!
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[[Projects|Back To All Projects Page]]
  
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Here are the build steps with pictures, schematics and code!
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[[Main Page|Back To Main Page]]
  
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==Schematic==
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__TOC__
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----
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So for 2012 I didn't want just any boring tree, I wanted to make one myself with a bunch of LEDs and a PIC that I had lying around!
  
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[[File:tree-2012-schematic.jpg|300px]]
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Here are the results with video, pictures, schematics and code!
  
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The MCLR resistor is 4.7K and the LED resistors will depend on your LEDs. Remember that there is a limit on the amount of current that the PIC can supply. I limited my 2V LEDs to 0.8mA by using 3.8K Resistors.
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{{#ev:youtube|ShFkCYE7gvw}}
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=Schematic=
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[[File:tree-2012-schematic.jpg|500px]]
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''FIX: The MCLR resistor should pull up the MCLR pin, and the MCLR pin should be connected straight to the ICSP header''
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The MCLR resistor is 4.7K and the LED resistors will depend on your LEDs. Remember that there is a limit on the amount of current that the PIC can supply. I limited my 2V LEDs to 0.8mA by using 3.8K Resistors. The total current usage is 20mA when all the LEDs are on. Assuming the 9V battery has a 400mAh life then this will give me at least 20 hours. Realistically I should get 30+ hours. For timing I used a 10MHz crystal.
  
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==Source Code==
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=Source Code=
  
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The code was written in C using MPLAB 8.6 and the HiTech C Compiler.
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The code was written in C using MPLAB 8.60 and the HiTech C Compiler.
  
 
Here's the source code
 
Here's the source code
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</source>
 
</source>
  
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==Result==
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=Result=
  
 
Here are pictures of the final result (ignore the quality of the makeshift wire tree)
 
Here are pictures of the final result (ignore the quality of the makeshift wire tree)
  
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[[File:tree-2012-1.jpg|300px]]
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[[File:tree-2012-1.jpg|500px]]
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[[File:tree-2012-2.jpg|300px]]
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And of course YouTube video of my tree :D
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{{#ev:youtube|ShFkCYE7gvw}}
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[[File:tree-2012-2.jpg|500px]]
  
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==Copyright==
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=Copyright=
  
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Everything here is under GPL3
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Everything here is under [[Gplv3|GPL 3.0]].
  
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If you use this to make your own project email me and link to my site :)
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If you use this to make your own project email me and link to my site.
 
my email is francois.louw@(this-domain)
 
my email is francois.louw@(this-domain)

Latest revision as of 12:03, 24 July 2014