I didn’t know what the heck I was doing when I tried to use a GALI-55 MMIC in my RF signal generator. A few basic mistakes led to hours of diagnosing the problem.
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My new KG-650 RF Signal Generator
I bought an old tube RF generator on eBay. It works surprising well considering the age of the technology. I use my Rigol scope to view some of the waveforms and play with the RF generator a bit.
Read MoreCreating the ultimate home automation keypad
I wanted a control center mounted to my monitor that I could use for important home automation functions. I build some custom keypads using Cherry MX blue keyswitches and interface them to a Raspberry Pi. I add a VFD display for status info.
Read MoreInterfacing a VFD display to the raspberry pi
I interface a vacuum fluorescent display to a Raspberry Pi.
Read MoreGE iTwinkle 36 LED Christmas light teardown and hacking
The availability of GE35 color effects sets, the ones that have been hacked since 2010, is poor. In this article I tear apart one of the new iTwinkle sets to see if they are compatible with the same hack.
Read MoreRaspberry Pi Powered Individually Addressable Christmas Lights
GE G35 Christmas bulbs are easily hackable. I wanted to control them with my Raspberry Pi, and this describes how I used a Parallax Propeller to do the intermediate protocol handling.
Read MoreNixie Tube Calculator, Powered by a Raspberry Pi
My latest Nixie Tube Project, a desktop calculator controlled by the Raspberry Pi. It’s currently on Kickstarter!
Read MoreCisco IOS Router Firewall Configuration (and close an open DNS resolver)
So I was happily using my Cisco 861W router, and then all of a sudden, years later my internet connection started to slow down. It was fairly obvious the problem was happening during domain name resolution. Sometimes it was fast, other times it was slow. To diagnose the problem, I turned on debugging: debug domain …
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