Raspberry Pi crashes during heavy network activity

A quick tip on solving Raspberry Pi crashes during heavy network activity. It happened to me that, during heavy WiFi network traffic, e.g. when uploading or downloading a file to the Raspberry Pi, the connection would drop. I tried several WiFi dongles with no success. Apparently, the USB driver exhausts memory under certain conditions, causing […]

User-centered design: Lab or field observation?

User-centered design: Lab or field observation?

I’ll say it upfront: I’m a big fan of field & participant observation. I know, I know, getting people in the lab, under controlled conditions, with the latest and greatest observation technology seems “scientific”. Yet, ask yourself how much it changes the very thing you’re trying to observe. I’m not concerned about the user feeling […]

Touché from Disney: very interesting touch sensing technology

Very interesting touch sensing technology from Disney. They use multi-frequency capacitive sensing to detect a user’s hand, finger, and body position on various surfaces. Even the human body posture itself can be recognized and acted upon. Several scenarios and possible uses are presented. Worth watching!