Browsed by
Category: Uncategorized

How to Adjust CPU Fan Speed on a Gigabyte Motherboard (Z97N-WIFI)

How to Adjust CPU Fan Speed on a Gigabyte Motherboard (Z97N-WIFI)

The Gigabyte BIOS is so un-intuitive that I’m documenting my notes in case it helps anyone else.  While searching online I did not find any answers on how to adjust the CPU Fan Speed.  Maybe it didn’t come up while searching because it’s so easy for everybody else to find that there’s no need to document it.  I’m good at detecting ambiguity.  It is my special gift. So here’s how.  Get in to the BIOS by holding the Del key…

Read More Read More

How to Remove Integrated WiFi from Linux

How to Remove Integrated WiFi from Linux

I’ve been having terrible problems with my wifi disconnecting randomly.  It seems the problem is with the Intel driver, called iwlwifi. I thought I solved it by turning off the Power Management setting for the driver, but the problem returned after 24 hours. The big headache is that the wifi interface is part of the motherboard.  Removing the interface from BIOS was not an available option.  I also knew that trying to ignore it by simply inserting a USB dongle doesn’t…

Read More Read More

Getting in to RC Car Speed Running

Getting in to RC Car Speed Running

    My first foray in to speed running.  These are my notes for posterity. I want to baseline my vehicle first, as I’ve been driving it for this last year, without any modifications for speed: Traxxas 2wd Slash Velineon VXL-3s ESC NiMH Battery 3000 mAh 23T 48P pinion 90T 48P spur Baseline Run:  30mph Experiment #1: Replace the pinion and spur to 27/76 and measure the speed. Result : 33mph Wow, interesting!  That was a huge bump in gearing…

Read More Read More

Autonomous Long Distance Test

Autonomous Long Distance Test

  Took Bitzero out today on the UC Davis campus during the early morning hours for a long distance autonomous test drive.  It was a success.  A total of 1.1 miles driven.     The most valuable observation was around waypoint resolution.  The further away a GPS waypoint was, the more likely it would brush against the sidewalk on the way.  I believe this is happening because the calculated heading angle is much smaller at longer distance, and the less…

Read More Read More

Open Water Test Three – Final Conclusion

Open Water Test Three – Final Conclusion

  Today marks the conclusion of testing the airboat platform.  And the result is:  I will stop prototyping with it. The wind was a little higher today and the boat was unable to steer autonomously at the speed I intend to build a rover.   The rudders attempted to steer the craft, but the wind kept it from making the turn.  It appeared to be incorrectly sailing the wrong GPS point, but really it was in a state of balance with…

Read More Read More

Lessons Learned Making My First Boat

Lessons Learned Making My First Boat

Just got the boat on the water for the first time and I wanted to jot down my thoughts while they’re still fresh.  This was the first time I’ve ever made a boat, or an RC model of any kind.   When I realized I could make them from Dollar Store foam and hot glue I was very impressed and happy to do so since I could get on the water for free, essentially.  As the build progressed though, I started…

Read More Read More

APRS on Linux

APRS on Linux

So want to track your high-altitude balloon or autonomous rover in the middle of the desert without an Internet connection?  Me too! Here’s my notes how I set it up on Ubuntu 16, using Dire Wolf and YAAC. Dire Wolf is a cleverly named software TNC: Decoded Information from Radio Emissions for Windows Or Linux Fans.   It will decode APRS messages from your radio audio jack connected into a computer’s soundcard.  We then use YAAC, Yet Another APRS Client, to…

Read More Read More