cellularmitosis

DIY Keyboard Firmware Notes

Microcontroller

One of the most popular:

$ grep -r '^MCU *=' qmk_firmware/keyboards | cut -d= -f2 | sort | uniq -c | sort -nr
 535  atmega32u4
  38  atmega32a

cellularmitosis

Blog 2019/12/5

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Overview of 74LVC-series single-gate TTL chips

The 74LVC series are modern, surface-mount, single-gate versions of the classig 7400-series TTL boolean logic chips.

cellularmitosis

Blog 2019/12/1

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Advent of Code, Day 1

I thought I'd use Advent of Code as a way to get some more Clojure experience!

cellularmitosis

Blog 2019/11/27

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Display a random page from a random PDF

Here's a Python script which will display a random page from a random PDF (in the current directory).

cellularmitosis

Blog 2019/11/26

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Installing pdftk on macOS

For whatever reason, pdftk (installed using pdftk_server-2.02-mac_osx-10.6-setup.pkg) seems to hang on recent versions of macOS.

cellularmitosis

Tech Links

See also my tech blog.

Awesome

• sindresorhus/awesome
• bayandin/awesome-awesomeness

Courses

cellularmitosis

Blog 2019/11/22

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Installing Debian on a PowerPC eMac

cellularmitosis

Blog 2019/11/22

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Installing OpenBSD 6.6 on a PowerPC eMac

I recently picked up a PowerPC eMac off of eBay, with the idea of having another platform to target while learning to write a compiler.

cellularmitosis

Blog 2019/11/4

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Installing Debian on the MIPS Creator CI20

With my recent interest in compilers, I decided to pick up a MIPS machine.

cellularmitosis

Blog 2019/11/2

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Trivial performance comparison of some Scheme interpreters

Let's use a trivial (recursive) Fibonacci benchmark to compare the performance of a few Scheme interpreters.