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fix(opengraph): added mandatory opengraph tags to all pages. Also fixed some other minor bugs

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content/posts/2015/tektree-part-3-wiring/index.md
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In the 3rd part of my TekTree project I'll show you guys how to wire everything. This time I even used separate colours for the power,ground and signal wires. So no more complaining ! ^\_^ All in all I think the result looks absolutely wicked. Even without the arduino case which has yet to come in the mail. (and probably won't fit)
In the 3rd part of my TekTree project I'll show you guys how to wire everything. This time I even used separate colours for the power, ground and signal wires. So no more complaining! ^\_^ All in all I think the result looks absolutely wicked. Even without the Arduino case which has yet to come in the mail. (and probably won't fit)
## Wiring part 1 - schematics
Before I started to jam wires in every nook and cranny I could find I had to come up with a plan. Most of that plan has been put into a "Fritzing" sketch which can be found below and on [Github](https://github.com/Mastermindzh/TekTree). The only thing I couldn't figure out how to model on fritzing is the actual christmas tree and the power cord for the arduino.
Before I started to jam wires in every nook and cranny I could find I had to come up with a plan. Most of that plan has been put into a "Fritzing" sketch which can be found below and on [Github](https://github.com/Mastermindzh/TekTree). The only thing I couldn't figure out how to model on fritzing is the actual Christmas tree and the power cord for the Arduino.
The arduino will get power from a regular adaptor. The only modification I did to the adapter is putting a button on one of the wires. And the only reason I did that is because I'm too lazy to unplug the TekTree when I want to turn it off :)
The Arduino will get power from a regular adaptor. The only modification I made to the adapter was putting a button on one of the wires. The only reason I did that is because I'm too lazy to unplug the TekTree when I want to turn it off :)
![Wiring of the back of the Tektree. You can see a lot of jumper wires sticking out and connecting to LEDs](./media/wiring1.jpg)
## Why so many wires?
I want the project to be "manageable" for everyone. To do this I kept the wiring as simple as possible. Every LED has 2 prongs, 1 goes to ground 1 goes to the arduino. Simple. Same goes for the potentiometers, 3 legs, 1 power 1 ground 1 signal. The only led's I did bundle together (in terms of wiring) is the star. I did this to create a single star instead of multiple led's.
I want the project to be "manageable" for everyone. To do this I kept the wiring as simple as possible. Every LED has 2 prongs, 1 goes to ground 1 goes to the Arduino. Simple. Same goes for the potentiometers, 3 legs, 1 power 1 ground 1 signal. The only leds I did bundle together (in terms of wiring) is the star. I did this to create a single star instead of multiple led's.
## Well you could've made it way prettier... and
Well yes, as all of us know I'm perfectly capable of designing a [refined build](/images/blogs/han4pi/Front_thumb.png). I didn't want to go with a pcb this time however because that would make the barrier to entry way higher on this project. And that is something I definitely **don't** want.
Well yes, as all of us know I'm perfectly capable of designing a [refined build](/images/blogs/han4pi/front.png). I didn't want to go with a pcb this time however because that would make the barrier to entry way higher on this project. And that is something I definitely **don't** want.
I also didn't "group" all my ground wires together. (led -> led -> led -> board) This would've made the project a lot neater but it wouldn't be anywhere near as service friendly. (which was kinda the idea...)