Whilst the chemistry was sometimes over my head, this book is an engaging summary of the history of US liquid rocket fuels during the height of the cold war. Fun to read and interesting as well. I enjoyed it. Title: Ignition! Author: John Drury Clark Genre: Technology & Engineering Release Date: 1972 Pages: 214
Using a MCP4921 or MCP4922 as a SPI DAC for Audio on Raspberry Pi
I’ve been playing recently with using a MCP4921 as an audio DAC on a Raspberry Pi Zero W, although a MCP4922 would be equivalent (the ’22 is a two channel DAC, the ’21 is a single channel DAC). This post is my notes on where I got to before I decided that thing wasn’t going…
1-Wire home automation tutorial from linux.conf.au 2019, part 2
For the actual on-the-day work, delegates were handed a link to these instructions in github. If you’re playing along at home, you should probably read 1-Wire home automation tutorial from linux.conf.au 2019, part 1 before attempting the work described here. Its especially important that you know the IP address of your board for example. Relay tweaks…
1-Wire home automation tutorial from linux.conf.au 2019, part 1
I didn’t get much of a chance to work through the home automation tutorial at linux.conf.au 2019 because I ended up helping others in the room get their Orange Pi is booting. Now that things have settled down after the conference, I’ve had a chance to actually do some of the tutorial myself. These are…
Introducing GangScan
As some of you might know, I am a Scout Leader. One of the things I do for Scouts is I assist in a minor role with the running of Canberra Gang Show, a theatre production for young people. One of the things Gang Show cares about is that they need to be able to…
Brilliant Smart Wifi plug with Tasmota
A couple of weeks ago I was playing with Tuya derived smart light globes (Mirabella Genio from K-Mart Australia in my case, but there are a variety of other options as well). Now Bunnings has the Brillant Smart Wifi Plug on special for $20 and I decided to give that a go as well, given…
I, Robot
Not the book of the movie, but the collection of short stories by Isaac Asimov. I’ve read this book several times before and enjoyed it, although this time I found it to be more dated than I remembered, both in its characterisations of technology as well as it’s handling of gender. Still enjoyable, but not…
Mirabella Genio smart lights with Tasmota and Home Assistant
One of the things I like about Home Assistant is that it allows you to take hardware from a bunch of various vendors and stitch it together into a single consistent interface. So for example I now have five home automation vendor apps on my phone, but don’t use any of them because Home Assistant…
What If?
More correctly titled “you die horribly and it probably involves plasma”, this light hearted and fun read explores serious answers to silly scientific questions. The footnotes are definitely the best bit. A really enjoyable read. Title: What If? Author: Randall Munroe Genre: Humor Publisher: Houghton Mifflin Harcourt Release Date: September 2, 2014 Pages: 320 The…
Abaddon’s Gate
This is the third book in the Leviathan Wakes series by James SA Corey. Just as good as the first two, this is a story about how much a daughter loves her father, perhaps beyond reason, moral choices, and politics — just as much as it is the continuation of the story arc around the alien visitor….