Audio Frequency Spectrum Analyzer & Spectrogram As a followup to a previous post on Music Visualization with Processing (and a good excuse to play with my Arduino), I decided to convert my Processing music visualizer into hardware. The project is not finished yet, but I wanted to post a quick update and how-to on making what … Read more
April 2010 Simple Powerline Remote Interactive Monitor and Enforcer SPRIME is an outlet that allows you to monitor power consumption and control power usage remotely, using a computer or even an Android phone. SPRIME is an open-source smart-grid technology. SPRIME GT-RNOC poster: SPRIME pictures: Awards SPRIME has made it on Hack-a-day! SPRIME has won … Read more
August 2009 This is an Arduino microcontroller that I wired into my car’s ECU and programmed to calculate the instantaneous/average miles per gallon of my 2002 Honda Civic. The circuit reads pulses from the Vehicle Speed Sensor and Fuel Injector wires. It is wired into my car via a USB cable. It’s pretty accurate once calibrated. My … Read more
I was curious about how much gas was actually saved when idling my car with the A/C off, so I gathered some fuel efficiency numbers using the MPGuino I made for my 2002 Honda Civic. The MPGuino can display the instant Gallons Per Hour (GPH) consumed, and this measurement was used for these tests. Testing Notes: All tests were … Read more