ARTICLES
Using a AWS Linux server, and Raspberry Pi Zero clients Situation Lots of linux devices (and embedded devices) behind firewalls without public IP address Publicly accessible computer (AWS) Goals Connect from the server (or office …
Test OpenVPN server on it's standard UDP port ping myserver.com nc -vzu myserver.com 1194 telnet is so 2020 so use nc which does UDP too -v verbose -z test daemon -u UDP Get a list …
See updated version at https://brettbeeson.com.au/energy-monitoring-circuit-positives-and-negatives/ Some, it all seems pretty simple, right? It's just import, export, consumption. This post clarifies the sign (+ or -) conventions I use which seem to make thi…
There's a few tutorials and references for debugging a python program on a remote (e.g. pi) computer. I had to fiddle a fair bit to get VSCode, ssh and debugpy to work. Here is how. …
Once a Pi is setup, it's useful to clone the SD card and save the state. Here's how. # install shrink it wget https://raw.githubusercontent.com/Drewsif/PiShrink/master/pishrink.sh chmod +x pishrink.sh sudo mv pishrink.sh /usr/local/bin # insert sd, copy …
Stud Walls Often you can't access the wall without removing weatherboard or plaster. However, the stud bays in my house are open - no noggings, few wires. Therefore I'll try to pump in insulation via …
Big Pete Pre made wort: 1/2 whiskey wort, 1/2 smoked porter Dry malt: dark, 1kg Yeast: Belgium yeast 2 week ferment Dextrose: 70g Tastes ok on bottling. The Champ Pre made wort: 1/2 whiskey wort, …
I bought this unit in Brisbane, Australia. This records details in case they are useful to others. Bearings Bearings were mostly stuffed after 30 years. They are metric and available from standard suppliers. Steel sides …
So I wanted to be able to set the Wifi details of a Pi without connecting a monitor and keyboard. Easy, right? No. RaspAP almost does it out-of-the-box, but I couldn't quite crack it. It's …
To test time-dependant programs, such as timelapse camera, we can fudge the system time (sleep,. now()) in Python. Some options are: https://github.com/spulec/freezegun/ This is easy to use, but doesn't manage sleep(). Use monkeypatch to override …
Notes on how to install and tune a HyperV VM running Ubuntu linux, for development. Did this March 2020. Did it on an older 6430u Dell and a brand new Dell laptop. VM HyperV Need …
Goal Make a really simple timelapse camera. Runs on a Pi and uploads photos when WiFi available Always taking photos and saving. Always trying to upload photos. Wifi setup to act as host or client …