This is a tutorial on how to do magnetic field measurement with an Arduino, a HMC5883L triple axis magnetometer and a Piezo Speaker
First of all, here is a schematic on how to hook up everything.
Source images from:
HMC5883L GND -> Arduino GND
HMC5883L VCC -> Arduino 3.3V
HMC5883L SDA -> Arduino A4
HMC5883L SCL -> Arduino A5
Piezo Speaker – -> Arduino D10 (Any digital PWM port is sufficient)
Piezo Speaker + -> Arduino GND
I’ve just created two Git wallpapers:
You can also find these wallpapers and others at my wallpaper page or at my deviantART page.
This is a tutorial on how to forward connections from Nginx to httpd in CentOS.
First of all, you have to edit the Nginx configuration file for the domain you want to forward. Continue reading
Posted in Server
Tagged CentOS, Linux, Nginx
Good instant messaging sounds are quite rare and I often dislike the default ones, so I searched for alternatives and found three which I want to share with you.
They were created for Adium, but I’ve converted them to MP3 and WAV so you should be able to use them with any instant messenger.