Cheap forms of technology such as the dimmers throughout your household result in a large amount of vampire power. Vampire power is created by equipment constantly running and therefore wasting power even when it is not in use. Our group wanted to utilize knowledge learned in our classes and from our own extracurricular activities to create a project that can be easily integrated into society, can improve lives all over the world, and also helps the environment in some way.
What it does
Our project, Vampire Slayer, is a device that can be overly simplified to a smart power strip that monitors the power dissipation, current through, and voltage over each component per outlet. Our project makes use of the Spark Core Development Kit in order to connect multiple units to a controller through Wi-Fi. Therefore we are able monitor the specifications of each electrical component throughout the house and turn each device on and off wirelessly.
How we built it
We used a simple method to measure the power in the circuits. To measure current there was simply a resistor with a relatively low load (100 Ohms) connected in series with the circuit. The voltage across this resistor was measured and used to calculate current through the circuit. The voltage was then measured across all circuits (as they were the same) to measure the voltage across the circuits. These two values were used to compute the voltage. An NPN MOSFET was then implemented to control when to turn on and off the appliances. This was then interfaced through a website to control and read values from the hack.
Code of Spark Core is provided in links. Vampire Slayer Website has HTML code integrated on website.
Challenges we ran into
Accomplishments that we're proud of
What we learned
What's next for Vampire Slayer
We hope to implement our project on a large scale. With the technology we had we were only able to implement a Low Voltage D.C. Analyzer and Controller. But by utilizing the same technology with additional sensors and components, we hope to recreate this power strip on a larger scale so that it may be utilized in homes throughout the world. Also if we had the opportunity to develop our project on a larger scale, we plan to optimize code while also enhancing the visuals and UI of the website.