About Jeff

I’ve been a software developer ever since I first started typing in program listings on an 80s home computer.

I’ve been a contributor to Free and Open Source software for over 25 years. See my codeberg profile for my contributions and original software.

My Blog

I’ve chosen these posts with a technical emphasis from my personal blog:

• Yet another Raspberry Pi Stratum 1 NTP server
• Cura vs GPX vs dual extruder temperature: A FIX!
• keyestudio gps shield as frequency counter
• Code size for bit reversing algorithms
• Fuzz-testing CircuitPython
• poc: Python OCE Composer
• Some small github integration scripts
• LinuxCNC on BeagleBone Black, Raspberry Pi, Odroid U3, Odroid XU4
• Coolest C Preprocessor Trick of the Year
• Free Software, Meritocracy, and why I try to listen when 'SJWs' speak
• Super Formula Guilloché Patterns in javascript/svg
• Proven Delights (and what are proofs anyway)
• Towards fast I/O in Arduino for AVRs
• GNU 30th—Celebrating 30 years
• A use for log1p
• Cancellation error
• csql: perform sql queries on csv data
• wwvbpy: WWVB timecode generator in python