Posted August 7, 2015 by Chris

"The purpose of Project 3 was to actually get the quadcopter into the air, and possibly make it autonomously hover in place. Since the copter mechanical design was mostly finished during Project 2, Project 3 consisted mostly of the quadcopter software development and some minor troubleshooting tasks with electronics. In order to control the copter, the team decided to modify AeroQuad software to meet the demands of our configuration."

Posted July 31, 2015 by Chris

"We designed and built a wireless computer pointing device with accelerometer based movement control. Our implementation allows the user to wear a set of hardware (a glove and connected armband) and control a cursor through different hand orientations and finger presses. Users can operate their computers with their hands in midair without the hassle of desks surfaces or wires."

Posted July 24, 2015 by Chris

"Presenting PiMony, a smart remote prototype built on a Raspberry Pi! As prototypes go, this is very… prototypey! It is quite large and kludgy. The goals at the moment are to learn more about the hardware side, and try out ideas for both hardware and software. Then work on the size, look and feel!"

Posted July 20, 2015 by Chris

"Wearable health monitoring systems integrated into a telemedicine system are novel information technology that will be able to support early detection of abnormal conditions and prevention of its serious consequences. Many patients can benefit from continuous ambulatory monitoring as a part of a diagnostic procedure, optimal maintenance of a chronic condition or during supervised recovery from an acute event or surgical procedure."

Posted July 14, 2015 by Chris

"The Senior Year Design Project was named Vanguard by the team. He is a remote controlled surveillance robot. To avoid data communication problems we decided to use different protocols for controlling the wireless camera and the robot. The robot can be controlled through desktop or laptop computers while the video can be controlled through internet, adhoc, WAN and LAN. It is powered by two batteries. One for the circuit and one for its motors."

Posted July 9, 2015 by Chris

"In this short article, I present a nifty technique for promiscuously sniffing such radios by (1) limiting the MAC address to 2 bytes, (2) disabling checksums, (3) setting the MAC to be the same as the preamble, and (4) sorting received noise for valid MAC addresses which may later be sniffed explicitly."

Posted June 28, 2015 by Chris

"Jamison wrapped a second coil and we hooked it up to a green LED. Connect the power, move the coils close together. First light! Yes!! Now it was time to improve Jamison’s project. We tried a full-wave rectifier to increase the LED’s brightness, with not a large (if any) effect. We built a two-stage Cockcroft-Walton generator, with much better success."

Posted June 23, 2015 by Chris

"In continuation to my previous post, I will start discussing how I solved the wireless distribution at my church in an economical way."

Posted June 12, 2015 by Chris

"This post introduces the hardware itself and the work I’m doing on this side to establish a decent test-bed for my continued experiments with finding iOS control patterns for BTLE applications along with determining the magnitude of the work and the code footprint when adding BTLE Radio support to an embedded project."

Posted May 3, 2015 by Chris

"Essentially, the RC car will follow a path drawn by the user on the touch screen as it is drawn in real time. Speed and direction of the car was extrapolated from the user drawn path and sent to the car through radio frequency transmission. We utilized a touch screen taken from an old Palm Pilot, the chassis of an old RC car (including the motors), and a transmitter receiver pair."