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This project lets you manipulate the input of voltage from an Arduino microcontroller so that you enjoy of a power supply from 0 - 5 Volts. For getting the code, go to: http://pastebin.com/CDy28N55

What you will need:

Soldering iron

Solder

Wire #22, 1.5m

Driller

Drill bit of 3/8"

Nose pliers

Cutter of wires

Step 1: Schematic Diagram

In this step, you will observe the instructions for developing the project successfully. That is, observe carefully the schematic so that you can develop with success this project.

<p>If you want to better this project, you can modify it by doing changes in its code from: http://pastebin.com/CDy28N55</p>
<p>This project can also be seen in Jameco Electronics at:</p><p>http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&amp;storeId=10001&amp;productId=2240067&amp;catalogId=10001&amp;CID=CLO</p>
<p>If you want to upload the code for this project, you need to visit the next site:</p><p>http://pastebin.com/CDy28N55</p>
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<p>Measuring voltage is critical in electronic projects.</p>
<p>Fritzing is a good option so that you can draw your projects.</p>
<p>Developing your own code is always an important effort.</p>
<p>This project was very interesting when I was developing it.</p>
<p>This project is for you.</p>
<p>Thank you for viewing this project.</p>
<p>I enjoyed developing this project.</p>
<p>This is a great project to measure the voltage of the potentiometer but I would advise strongly against using this a power supply. Your limited to the tiny current provided by your 9V battery. But also you have the positive output connected to A0, which is configured as an input. This is a good way to fry your Arduino. And lastly the current max for any IO pin is 20mA (40mA abs. max). Just a few caveats. </p>
<p>Than you!</p>
<p>First of all, you get full marks for your Instructables write-up. Lots of good detail, step-by-step instructions, and very good photos. You obviously put in a lot of time and effort, so &quot;well done!&quot;. </p><p>However, this design is simply NOT useful as a power supply. You are measuring and displaying the voltage on the wiper of a 10K pot between 5V and ground, but there is no attempt to regulate the &quot;output voltage&quot;, or control in it any way that a power supply would. Also, with that 10K pot, the output impedance will vary with the pot setting, and will be high enough such that the output voltage will be dragged down by almost any circuit you connect this to.</p><p>You should change the title of this project to something like &quot;Use an Arduino to Measure Potentiometer Voltage&quot;, or something like that. </p>
<p>Thank you!</p>
<p>Manipulating physical variables is a important challenge for beginning an Arduino project.</p>

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