Author: David Lechner

How to Repair the Rotation Sensor on a LEGO MINDSTORMS EV3 Motor

Do you have a LEGO MINDSTORMS EV3 motor that stopped working? With a little ingenuity, you can repair it yourself!

Overclocking LEGO MINDSTORMS EV3 – Part 2

In Part 1, I explained the mechanics behind adjusting the CPU frequency on LEGO MINDSTORMS EV3. In this post, I have a new insight to share and and a new way to try it yourself. Undervolting In the last post,

KeeAgent v0.10.1 Released

Yes, KeeAgent v0.10.0 was released only yesterday. But, thanks to an intrepid KeePass forum follower, it was discovered that KeeAgent was not compatible with the latest KeePass 2.x development snapshots. When KeePass 2.39 is released, older versions of KeeAgent will

KeeAgent 0.10.0 Released

I’m promoting the latest KeeAgent Beta to stable. It has been downloaded many hundreds of times with no major issues reported. Nothing too major has changed since the last stable release. Mostly bug fixes and some usability enhancements. Download:

KeeAgent 2017 Contribution Report

Starting on the first of January, 2017, I started accepting PayPal payments for KeeAgent using a pay-what-you-want model. I had no idea what to expect, and I imagine others may be interested to know as well, so I am making

KeeAgent Beta 0.9.3 Released

This release fixes some keys not loading when running with mono –verify-all (e.g. on Fedora). I know I said this last time, but… This will probably be the final beta released before this becomes the “stable” version, so please test.

Overclocking LEGO MINDSTORMS EV3

So, I discovered something quite interesting recently. LEGO MINDSTORMS EV3 doesn’t actually have a 300MHz processor like it says in the specs. I actually has a 456MHz processor running at 300MHz. Don’t believe me? It is printed right on the

KeeAgent Beta 0.9.2 Released

There are just a few minor enhancements: Add support for aes256-ctr cipher in OpenSSH private key files Experimental support for Windows OpenSSH This will probably be the final beta released before this becomes the “stable” version, so please test. Download:

Common Misconceptions About Resetting the EV3

I frequently see incorrect information floating around about “resetting” LEGO MINDSTORMS EV3. I would like to clear up a few things… The Official LEGO User Manual is Misleading The LEGO MINDSTORMS EV3 Users Guide gives the following instructions for resetting

microSD Card Benchmark for EV3 and Raspberry Pi 3

I needed to buy some more microSD cards for my growing collection of EV3s, BeagleBones and Raspberry Pis. There is surprisingly little information on the Internet about how to pick “the best” microSD card for these devices. And, what information

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