Posted July 17, 2017 by Chris

"For the past few months, my friends and I have been planning to make our own laser tag system that we can play at home. The goal is to make a laser tag system that we can modify and program different game modes. Why are we doing his? We just want to play some laser tag, and learn a couple of things along the way."

Posted July 14, 2017 by Chris

"Sleep deprivation has been driving me mad recently. And it’s all down to a new member of the family, our new dog. She barks at night when she’s left out. She barks early in the morning when she’s left in. So once I recognized the patterns of her barking, I realized that all I needed was something that would let her out when she needed to go for a pee, usually around 6:30 in the morning."

Posted June 26, 2017 by Chris

"This rain detector will give you a heads-up the instant it starts to rain, hopefully giving you time to close windows and bring in possessions. The battery-powered circuit draws virtually no current when the sensor is dry and the current consumption is low when the buzzer is activated so a couple of AA cells will last a long time."

Posted June 11, 2017 by Chris

"My original “Deer Repellent/ Seismic Sensor” recommended using a speaker with a weight glued to the cone as a vibration sensor (see bottom of page) but it recently occurred to me that the speaker could supply the mass itself. By gluing a standoff to the center of the cone, an inexpensive 2″, 8 ohm speaker becomes a vibration sensor with a natural resonance below 100Hz which is quite good."

Posted April 29, 2016 by Chris

"Sound is a phenomena that is a result of vibration of materials. Sound is characterized as a mechanical wave that carries mechanical energy. For the transmission of this energy between transmitter and receiver, presence of a medium is necessary. The medium can be solids, liquids or gases."

Posted April 24, 2016 by Chris

"The Keyglove is an innovative new way to interact with your technology. A wearable, wireless, open-source input device, the Keyglove provides unprecedented flexibility and convenience for gaming, design, art, music, data entry, device control, 3D object manipulation, and even inexpensive telepresence."

Posted March 5, 2016 by Chris

"Intrinsic optical signal (IOS) imaging is a functional imaging technique that has revolutionized our understanding of cortical functional organization and plasticity since it was first implemented, around 30 years ago. Even if IOS imaging lacks the ability to directly measure electrical neuronal function and track data at a fine temporal scale, it has some advantages on electrophysiological techniques, such as the capability to visualize functional architectures via the simultaneous sampling of a large cortical region with high spatial resolution."

Posted January 17, 2016 by Chris

"My system doesn’t require plumbing alterations, and it transmits the information via my home wireless network, so I can view water use on a connected device anywhere in the house. Now when my teenage kids take profligate showers, I can berate them with quantitative measurements!"

Posted November 19, 2015 by Chris

"A modular electronic drum kit that allows recorded samples to be used as drum sounds. We decided to build a modular electronic drum kit because we thought it would be an interesting project to be able to record ourselves and use our own voices or sounds as drum noises."

Posted November 10, 2015 by Chris

"We are working to develop an open source hardware datalogger that can be placed in the field for extended deployments and measure common water parameters like temperature, conductivity, depth, and turbidity. There have been several iterations of the hardware, including a version based on an ARM chip."