<img src="http://yapelesolutions.co.za/mine/current1.png" align="middle">
<p>I was getting frustrated with wrongful billing by the municipality and decided it’s about time I kept a record of my electricity usage. So I designed my own <b> “Electricity data logging system”</b></p>
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<p><img src="http://yapelesolutions.co.za/mine/current2.png" align="middle"></p>
<p>Processing 2.1.1 application: No current LED blinks at 1Hz</p>

<p><img src="http://yapelesolutions.co.za/mine/current3.png" align="middle"></p>
<p>Processing 2.1.1 application: Current detected LED blinks at 3Hz</p>

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<h4>Features and operation:</h4>
<ul style="list-style-type:square">
<li>Prototype is built around an Arduino UNO (8 Bit AVR microcontroller – ATMEGA328P).</li> 
<li>SD card module for data logging.</li> 
<li>Real time clock which keeps track of time.</li> 
<li>100A current clamp measures current by simply clamping around the mains and only 5% changes either current going up or down is logged into the SD card as an Excel file (.csv) with its Time and Date stamp.</li> 
<li>All the measured values are sent through serial communication via an FTDI to an application developed with Processing 2.1.1</li> 
<li>The prototype has been upgraded to operate with a battery and without being connected to a computer. </li> 
</ul>

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<h4>Pending upgrades:</h4>
<p>Prototype will be built around an Arduino YUN (AVR microcontroller with LINUX) which connects to the internet (via a 3G dongle or WIFI) and logged data to Google Spreadsheet through Temboo or even a cloud Pubnub.</p>

<p>The benefits of sending data to Pubnub which can be viewed in real time through the web or a mobile app.<p>

<p>I will then design a PCB as a final product.</p>
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<p>If you need a full code and design just drop me your email address.

<p>Kindly upvote and follow me: <a href="https://steemit.com/@mokluc">@mokluc</a>. I will upload another project soon: <b>My Arduino fun projects</b></p>