Sunday, September 16, 2018

PyconAU 2018 - Keep Notes

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This is a raw dump of notes I took on keep while attending PyconAU. Each to be fully expanded to an article on its own. Suitably redacted t...
Wednesday, August 29, 2018

Using AWS Athena in Anger

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The journey down this particular rabbit hole started with this challenge "Create Read-replicas for MSSQL 2017 database hosted in RDS...
Sunday, July 15, 2018

Preserving pins, auto-transmit RS485 with Lora32_Wifi

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This is a story of the always helpful NE555 (in this case its 3.3v cousin the TLC555). I have been designing more and more complex DIN rail...
Thursday, December 14, 2017

Sense Energy monitor teardown - sampling in MHz

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Recently I obtained a Sense Energy monitor via US from Margaret of BitKnitting . She is doing a very interesting neighbourhood energy effi...
Thursday, October 12, 2017

Simulating 3-phase AC for Energy Monitor testing

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Finding 3-phase is difficult, convincing the owner of the said supply to test some home made hardware is even more so. After building a 3-p...
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Sunday, August 13, 2017

PyconAu 2017 - Melbourne

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I recently attended my first PyconAu - a cauldron of programming goodness. It was held in cloudy and grey Melbourne at the convention cent...
Thursday, June 29, 2017

3G Energy Monitor - WattWatchers teardown

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Tear-downs are always done in a spirit of learning and admiration. Having built some hobby electronics I really appreciate what goes into ...