Posted May 29, 2013 by Chris

“Working with embedded electronics, you will eventually end up with some sensor between your hands and here I’ll show you how to make a graph out of the data! This project involves a light sensor, a tiny 8-pin AVR USB key with the V-USB stack, a GNU/Linux system and rrdtool.”

Posted May 28, 2013 by Chris

“For our design project we constructed a polygraph which measured pulse rate, GSR, and breathing rate, and performed a discrete cosine transform (DCT) on the subject’s voice in the hope of measuring a deviation in the fundamental frequency (another indicator of stress). The measurements were sampled, analyzed, and transmitted to a computer for further analysis using an ATMEL AVR Mega32 microcontroller.”

Posted May 27, 2013 by Chris

“The analog output voltage from the sensor is measured through an ADC channel of the PIC16F1847 microcontroller. A voltage to current conversion equation will be derived and implemented in the firmware of the PIC microcontroller and the actual load current will be displayed on a character LCD.”

Posted May 26, 2013 by Chris

“InfoNinja is an Open Source Ethernet-connected desktop heads-up display. It works in tandem with a desktop computer to give you an at-a-glance secondary display of both text and ambient information….It is also a tea timer.”

Posted May 25, 2013 by Chris

“I had this old Philips radio laying around that I couldn’t use because it only had an AM receiver. So, I thought it would be cool to make it into an iphone dock =D”

Posted May 24, 2013 by Chris

“Mister Gloves is a wireless USB gesture input system that enables a person to use a computer by performing intuitive hand and finger motions in the air. While wearing a glove controller on the right hand, the user can move the cursor by forming a pointing gesture and click by curling the index finger or thumb. Other right hand gestures enable scrolling and provide access to various keyboard shortcuts.”

Posted May 23, 2013 by Chris

This week we’re going to have some fun with everything we’ve just learned. We’ll Design an LED Chaser. Here’s a quick intro of what this PyroEDU lesson is all about:

Electronics is not all about theory all the time, some moments do come when you get to have some fun. In this lesson we are going to celebrate our wealth of knowledge and just go design something fun. An LED chaser is loosely defined as a system where LEDs follow one another in a certain pattern, so start go start designing!

Posted May 22, 2013 by Chris

“Given that the HP 829292A is one of the hard to find accessories to for the HP Series 80 and it’s a must have if you don’t have some of the original expansion ROMs such as the Assembler ROM, the primary goal of this project is to design and build a functional clone of the HP 829292A module.”

Posted May 20, 2013 by Chris

“I needed an idea that I could use to teach myself about using a relay with Microcontrollers and solve that age old problem: Switching between speakers and headphones on my PC without having to actually get up and mess around in the rats nest of wire’s behind it.”

Posted May 19, 2013 by Chris

“This amplifier will work great with the crystal radio project. It will enable you to pull in weaker and more distant stations. Local strong stations will have extremely loud volume.”