Electroteach

Linux Mint blog
upgrade-to-mint-21

Java download page

install / uninstall Java 25

PM35L N48 stepper motor

trusfer
This site needs some translation - I've not got all the way through yet !

see also Google "trusfer laser"

LoLshield
A Jaycar offering - some products are not well documented - someone has created a library for this. It was on special at my local store. I have used Charlieplexing before so this was likely to be of interest.

understanding the lol shield library

LM317T is an adjustable voltage regulator monolithic integrated circuit intended for use as a positive adjustable voltage regulator. It is designed to supply more than 1.5A of load current with an output voltage adjustable over a 1.2 to 37V range.

lm317 resistor voltage calculator

Book about raspberry Pi hat ISS

Notepad on Windows has a built-in feature that allows it to act as a basic log file creator by automatically adding a timestamp to the beginning of the file each time it's opened. This is achieved by simply starting the file with the line ".LOG" (in all caps). Notepad will then recognize this and append the current date and time to the file whenever it's opened in the future

rtc-clock-module-for-raspberry-pi
see also Adafruit version

and for building code for RPI, start here and see tutorial
XC9044 datasheet

Google search 'docker on raspberry pi 3' for more tips

2026 everything open
Everything Open goes to Canberra in 2026

location Canberra