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PIR Sensor Comparison

I recently started working on a project that might require some Passive Infra-red (PIR) sensors. Sparkfun had two different ones, so I figured I’d try them both. ...

Wireless Friend Finder!

The Wireless Friend Finder was my project for the Bring-a-Hack dinner after the 2012 Bay Area Maker Faire. I made it in a hurry, so it’s not terribly well documented. The wireless friend finder is...

New Workbench!

I finally decided to get a dedicated electronics workbench. I had been working on my computer desk until now, but it wasn’t quite working out. The first problem was having to clean up my electronic...

Wireless RGB LED Board (Part 2)

I finally managed to make a quick video of the build process for my wireless RGB LED controller. I used two cameras to do a time-lapse of the build. Unfortunately, they were using different frame-r...

CC2500 Project (Part 9) - Debugging

I just spent several hours debugging my cc2500 radio libraries. What changed you might ask? Two lines of code… My Wireless RGB LED driver had been using the msp430g2452 microcontroller. So far it ...

Wireless RGB LED Board (Part 1)

I’ve been working on my wireless RGB LED boards for a while now. I finally made an all-in-one PCB that includes an msp430, a cc2500 radio module, 3 MOSFETs for driving the LED strips and a 3.3v lin...

Migrating Blogger to Wordpress Permalinks

I recently migrated my blog from blogger to WordPress. The migration was extremely easy with the automatic importer in WordPress. The only problem is that every single link on the web is pointing t...

CC2500 Project (Part 8) - Downsizing

I received my PCB’s yesterday (From Laen at dorkbotpdx.org, of course!). I spent last night attempting to solder all the surface mount components (and for the most part, failing miserably). I need ...

CC2500 Project (Part 7) - More Lights and Power Supplies!

Here’s another quick update (with lots of pictures and a video!) I ordered another RGB LED strip from adafruit in order to test how my system works with multiple devices. I don’t have my PCB’s yet ...

Smart Meter Fun (Part 1)

My current apartment has one of those ‘smart’ electric meters that can communicate with the power company directly over the power lines. A few months ago, I found out about a smartmetertexas.com, w...