301 Moved Permanently

Posted June 5, 2013 by Chris

“Walleye is an interactive light installation which engages users in temporal gestural and bodily play. It generates temporal light propagation patterns, or a large scale very low resolution pixilated image (depending on how you look at it) based on the realtime movement of visitors in the space.”

Posted June 4, 2013 by Chris

“With this I have an autonomous robot based on the FRDM-KL25Z board and a chassis from Pololu. It performs line following and maze solving, and can be controlled by a remote shell or controller unit (e.g. with an accelerometer).”

Posted June 3, 2013 by Chris

“The story behind this experiment was to investigate the average wind speed to motivate a future wind turbine project. A commercial logging weathers station cost much. So this is an attempt to build a good alternative cheap solution.”

Posted June 1, 2013 by Chris

“If you look at the code for our electronic dice then you will see that it is just a counter. It counts up while you press a button. Why is this a prefect dice? It’s a dice because microcontrollers do operations in ?s and humans are unable to control pushbuttons and time with the precision of ?-seconds.”

Posted May 31, 2013 by Chris

“A while ago I got my hands on some old split-flap displays from a train station. Yesterday I finished driver circuits for 8 of the segments. It was only just in time to also quickly implement a clock algorithm for an extraordinary clock to display the turn of the year. Don’t miss the movie at the end of this posting.”

Posted May 30, 2013 by Chris

Now it’s time for our two bonus lessons on PyroEDU’s Digital Course. We’ll start by looking at 7400 Series Logic Devices. Here’s a quick intro of what this PyroEDU lesson is all about:

After you have mastered the digital fundamentals you are ready to grow and move to the more complex areas that exist. This bonus lesson dives into the more advanced 7400 logic IC’s available to us as designers and looks specifically at 3 interesting IC’s. The experiment for this lesson is to build a knight rider LED circuit.

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.”