I had a minor bug in Herp Derp where the original comments weren’t showing up on pages other than the first – this has been resolved.
Herp Derp for Opera available
Herp Derp – Safari support!
It looks like the Safari Developer Certificate stuff got straightened out.
Herp Derp – now with Firefox support
With an Arduino Ethernet, Processing, and a Kinect, I was able to easily create this little demo where hand movement can control a servo. This is just a tiny step in my master plan to create a robot clone so that I don’t have to leave my chair.
The following libraries and drivers made this work and also made it super easy for me to create it:
OpenKinect
Daniel Shiffman’s Processing Kinect Library (he knows his stuff and has great examples on his site)
Arduino Ethernet UDP send / receive string
Servo:
EMAX ES08A Servo
How it works:
- The Arduino Ethernet acquires an IP address and waits for UDP packets on a certain port.
- The machine with the Kinect sends packets to the Arduino that contain hand coordinate data.
- The Arduino then takes this data (an integer) and maps the range from 0 to 180 degrees.
- The mapped value is sent to the servo.
It’s not a serious competition until you’ve put a microcontroller inside your gingerbread house. Since we were going for the Charlie Brown theme, I ripped apart and adapted a musical card that played ‘Linus and Lucy’. I also rigged up some LEDs to blink with the music. Video below the pictures.
Ubuntu and PCMCIA card
After installing Ubuntu Server 10.04 LTS on an old laptop (don’t ask why) I found that it wouldn’t detect its PCMCIA wired Ethernet card (PCM100).
Solution:
- Copy over the packages pcmciautils and libsysfs2 (I had to download them and transfer via USB flash drive: pcmciautils, libsysfs2)
- Install the packages: sudo dpkg -i [name].deb
- Reboot
VoilĂ !