1 Jul
2010

New “Projects” Pages

I created a new “Projects” type to list some projects currently on protofusion. Check out the link in the top menubar, or click here. Have a project that needs some of the resources that protofusion can provide? Send an email to admin@protofusion.org.

Announcements | No Comments
16 Jun
2010

Victor Speed Controllers and EMC2

I’m currently working on building a EMC2-controlled CNC machine with mostly parts I have on hand. I decided to use Victor 883’s to control my servos, but EMC2 does not put out the RC-style PWM signal that victors are driven with. Thankfully, hardware in EMC2 is configured with HAL, allowing the software to work with nearly any hardware. Below are the values and configuration I used. If you are planning on using other RC-style motor controllers, you’ll need to calculate these values yourself.

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CNC | 2 Comments | Tags: , ,
13 Jun
2010

Google Voice and Asterisk

Google Voice & Asterisk

There are numerous guides about setting up Google Voice and an incoming sip number for free outgoing calling. Sadly, all of the guides I found were written for FreePBX or some other Asterisk bundle, and also used a shell script to do much of the work (scary!). I have compiled the minimal amount that you need to put in your asterisk conf files to make things work, GUI-free and variant-independent.

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Linux, Technology | 4 Comments | Tags: , ,
11 Jun
2010

End of the road for free data on iDen?

It looks like getting free data access on iDen handsets is going to end, likely on or before 6/20/10 according to this Sprint document (credit Engadget). Coincidentally, this is the same day that the Motorola i1 is released, the first Android phone on the iDen network. With this phone, Sprint would needed to lock down iDen data access a bit harder than blocking the phone’s built-in browser (the status quo), so the change will affect all phones on the iDen network (Boost and Nextel).

This also means that getting mobile connectivity for your Arduino will no longer be free. Boost mobile’s data rates run at $.35/day.

Update: 6/20 has passed, and I still have data access.

Technology | No Comments | Tags: ,
20 May
2010

(Really) Cheap RFID door opener

Well, the school year is over, so I thought I’d post up some information about my (extremely cheap and junky-looking but functional) door opener. Read more »

Arduino, Projects | 3 Comments | Tags: , , ,
13 May
2010

Randomly Interesting: The Super-Kamiokande


The Super-Kamiokande is a submerged neutrino (cosmic ray) detector located in Mount Kamiokakō in Japan, 1000 meters underground in an old mineshaft. The enormous apparatus is primarily used for detecting supernovas and cosmic rays. Originally constructed in 1993, the detector allowed researchers to detect proton decay, a feature which previous detectors lacked. The Super-Kamiokande is 15 times larger than its predecessor, giving it unchallenged accuracy at the time.
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Technology | No Comments | Tags: , , ,
11 May
2010

Trying out a new look

I’m switching up to a new lighter theme just to see how it looks. Drop a comment and let me know what you think.

Uncategorized | No Comments
30 Apr
2010

Archlinux Chroot on Gentoo Guide

Archlinux is quite a popular distribution among the geekier crowd of GNU/Linux users. I understand that Ubuntu is the most popular GNU/Linux distribution in general. It may supposedly fit the needs of the populace, but that attempt to support getting grandma on the keyboard is the reason that this distro is unattractive to us geeks ;-).
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Linux | No Comments | Tags: , , , ,
16 Apr
2010

Delonghi EC155 Resources

A few people have asked some questions about the EC155 tamper size, replacement frothing wands, etc. I’ll keep updating this page with answers to common questions.

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Espresso Mods | 34 Comments | Tags: ,
7 Mar
2010

ridik: libtool-archives

Gentoo devs: These libtool archive files are so frustrating!

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ridik | No Comments | Tags: , ,