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Power for Resmed Airsense 11 CPAP Offgrid and During Power Outage with Bluetti
My wife uses a Resmed Airsense 11 CPAP and a recent storm in Brisbane which resulted in a power outage, this meant she could not use her CPAP that night. We also go offgrid sometimes and wanted to make sure we could keep the CPAP running at night. The first question was how much power…
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K’gari – Fraser Island – Itinerary staying at Kingfisher Resort 3 Days
To access the Eastern Beach the tides are important to know. You should never attempt to cross Eli Creek 2 hours either side of High Tide. Australia BOM tides http://www.bom.gov.au/ntc/IDO59001/IDO59001_2020_QLD_TP035.pdf For example the weekend of Friday 13 November has the following tides:Fri 13 Nov: Low tide 12:08 0.41m, High tide 18:10 1.86mSat 14 Nov: Low…
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Ipswich Aerial Photograph 28 May 1981
Some aerial photos found while cleaning up, the original prints obtained during work experience at the Queensland Government Photography Department in the 80’s.
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Suduko with Colour
Until yesterday I had not really thought about using colours for maths, then some maths created this colour matrix. I recently watched a great Numberphile episode on YouTube titled “A Breakthrough in Graph Theory” where Erica Klarreich describes how Hedetniemi’s conjecture has been challenged. The title caught my attention as I have always been interested…
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Brisbane Bucket List
Recent Forbes article on how Cool Brisbane is: Brisbane Was Once A Backwater Town. Now, It’s Australia’s Coolest City Update, a great page from Visit Brisbane: Tick off all 93 things to do on Brisbane’s bucket list Be Prepared Always carry some water, easy to get dehydrated. In the wet season it can rain suddenly…
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Installing Node-RED on Raspbian for Raspberry PI
I found some problems getting Node-RED running the way I like Linux applications to work, so I determined the following steps to make it happen. Installing Node-RED on Raspbian for Raspberry PI Get Node JS installed, on raspian, install nodejs sudo apt install nodejs sudo apt install npm sudo npm install -g npm Install Node-RED using…
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Install Home Assistant on Raspberry PI
Install Home Assistant on Raspberry PI Follow the instructions on this page https://www.home-assistant.io/docs/installation/raspberry-pi/ Encountering problems with Home Assistant on Raspberry PI When running hass from the command line after other steps were complete, I had some problems and was getting errors like the following. 2018-10-14 13:12:20 INFO (Thread-14) [homeassistant.util.package] Attempting install of pychromecast==2.1.0 2018-10-14 13:12:28…
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Checklist for Robust Linux Applications
Linux is very powerful when it is set up correctly. Behind the scenes of Linux are 1000’s and 1000’s of Linux developers, they do lots of things to make Linux robust, and sometimes when we are working on our own projects we forget what a robust application is. Assuming that you are not developing the…
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Install Raspbian Linux with Desktop (because GUI’s help people)
Using Linux opens a world of high quality and robust Open Source projects which you can use to make things happen. Getting a Raspberry PI running in your home network is the first step to Home Automation, it is quite straightforward for anyone with a little interest in computers. This is a quick start guide…