The Curmudgeoclast

Thoughts, projects, and ramblings of Dave Astels

Thu 30 January 2020

CircuitPython Tips

Posted by dastels in software   

This is a living document that will be added to as there are more to make note of.

Configuration Data

Sometimes you have data that controls your app which you want to keep out of the code itself. This could be because you don't want to publish it with the …

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Fri 06 December 2019

100th Anniversary Iroshizuku Inks

Posted by dastels in fountain-pens   

2019 is the 100th anniversary year of the Pilot Pen company. To commemorate this milestone they created a limited edition of pens inspired by the seven gods of good fortune in Japanese lore. These are high end Namiki Taka-Maki-e (raised Maki-e) pens that are made by Japanese artisans, each pen …

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Wed 27 November 2019

uLisp Hacking

Posted by dastels in software   

This will get expanded as I get more code working.

uLisp

uLisp (i.e. micro lisp) is a lisp interpretor aimed at microcontrollers. There are versions for boards as limited as the Arduino UNO (8-bit, 16MHz, 32K flash, and 2K ram). More interesting is the 32-bit version for ARM microcontrollers …

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Sat 16 November 2019

Scriptus 2019

Posted by dastels in general   

Well, only 7 months has gone by since my last post .

The pen and ink obsession continues unabated.

I recently went to Scriptus (aka The Toronto Pen Show) and picked up several firsts for my collection:

  • first 3D printed pen
  • first ebonite pen
  • first hand-turned pen
  • first celluloid pen
  • first …

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Sat 20 April 2019

What I've Been Up To For the Last Year

Posted by dastels in general   

I just made a post and noticed that it's been a year since my last one. This always seems to happen. Good intentions "I'll blog more... really!". Then life happens, I get distracted, and suddenly I see that it's been a year since I last posted. So here we go …

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Sat 30 March 2019

Review: TWSBI Diamond 580ALR Nickel Gray

Posted by dastels in pens   

How I Learned to Relax and Love the Demonstrator

I'm not really a fan of demonstrator pens. Seeing the guts is interesting sure, but if you've seen one convertor you've pretty much seen them all. I have a Monteverde Monza so I'm good with demonstrators.

Or so I thought.

With …

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Tue 01 January 2019

2018 in Review

Posted by dastels in general   

The year started with me employed by Trov. After a bit over a year I was still having trouble generally hitting my stride despite some good successes. So it was with some relief when a shakeup in the upper levels of technical management cut me loose in, as I recall …

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Sun 15 October 2017

Feather M0 Express supersizing

Posted by dastels in project   

NOTE: This is based on the 2.x branch of circuitpython and doesn't yet work on the lastest from the master branch.

In my last post I described how I hacked a 2Mbyte SPI flash onto a Trinket M0 to give it the memory space for CircutiPython of one of …

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