Blog

GDB errors with "PC register is not available" with pyOCD

March 29, 2022

When trying to load firmware with gdb it started throwing an error "PC register is not available"...

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Enaml-native android builds for Python updated to 3.10.2

March 13, 2022

Python 3.10.2 builds for android are now available via conda-mobile!

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Profiling python apps with KCachegrind

March 13, 2022

Short post on how to profile a python app using KCachegrind.

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Micropython ESP8266 Reflow Oven

March 05, 2022

A short post on my micropython PCB reflow oven...

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How to block HTTP3/QUIC

January 24, 2022

I've been seeing a lot about HTTP/3 lately and how great it is...

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Attempts to cut a solder paste stencil - Part 4

December 30, 2021

Finalizing my series of posts on cutting pcb solder paste stencils with a rotary engraver.

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Debugging python extension core dumps or segfaults in CI

December 28, 2021

If a python extension causes a segfault when running with CI it just stops abruptly with a Aborted (core dumped) message.

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Updating to gcc 11 on kde neon

December 22, 2021

The latest GCC releases are in the ppa:ubuntu-toolchain-r/test repo but add-apt-repository doesn't work on KDE neon...

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Variable distance chamfer in Opencascade

December 10, 2021

Opencascade provides an API to do variable radius fillets but unfortunately there is no way to do this with chamfers.

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eBay vs Carbide Tool Source milling cutters

November 12, 2021

I bought a pack of the cheapest HSS milling cutters off of eBay, and a set of 1/4" carbide mills from carbide tool source.

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