Category Archives: Random Stuff I Learned
Signals from Space! (part 3)
In the last two parts, I used my homebrew software-defined radio to receive weather image signals from the NOAA-19 satellite and spent some time trying to calculate the satellite’s speed using frequency shift measurements. This time around, I’m going to … Continue reading
Signals from Space! (part 2, and a Chronulator contest)
Quick recap: In part 1, I captured weather satellite signals with my software-defined radio prototype, using the audio input on my laptop. So, what can be done with these captured signals? The first thing I did after recording the NOAA-19 … Continue reading
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Signals from Space! (part 1)
I attempt to receive weather satellite signals with my software radio prototype — with surprisingly good results! Continue reading
Fear The Bus Pirate, For It Is Awesome
I got my Bus Pirate today, just in time to talk to my project’s audio codec via I2C. It is no exaggeration to say the Bus Pirate saved me a metric crap-ton of time. In about ten minutes, I had … Continue reading
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PCB stencils on the cheap (kinda)
How to apply circuit board solder paste if the only fancy tool you have is a low-power laser cutter — using Avery adhesive mailing labels! Continue reading
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Don’t Trust Solder Flux
Clean the solder flux from your circuit board prototypes, or suffer the bitter consequences! Continue reading
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EAGLE CAD Version Rollback
How to move your EAGLE CAD designs from 5.x back to 4.x without too much pain. Continue reading
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