Periodic Emails with Django
Rough notes on meeting these requirements: Using Django Send weekly / daily emails to someone Log results Be robust and simple Packages Based on stars, maintenance, simplicity in 2021 post_office for emails: it may be …
ARTICLES
Computing
Wordpress Setup (and Migration)
Wordpress: meh. But anyway: # # server1 # scp -r /var/html/www/sitey/ server2:. mysqldump sitey-db-name -u root -p > sitey-sql scp sitey-sql server2:. # # server2 # mv sitey /var/html/www/ # for nginx. owned by user …
InfluxDB v2 (Flux) Setup for Energy and Power Data from Iotawatt
This are my notes on setting up InfluxDBv2 for storing Iotawatt power readings. Specifically I needed to: Transition a live site from InfluxDB1 to InfluxDB2 Setup InfluxDBv2 to use InfluxDBv1 api and auth, so that …
Enclosures for electronics and RF
Investigations into using ABS, polycarbonate and sheet metal enclosures to house electronics with a focus on getting that radio signal (wifi, 3G/4G) out of the box Requirements Weatherproof. IP66 = no dust and no water …
OpenVPN for IoT : Linux Server, Various Clients including RaspiZero
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 …
linux commands
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 …
Debugging Pi from VSCode
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. …
Battery PiZero W, PiJuice Zero and a Camera
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 …
Raspberry Pi Setup (Linux)
Setup SD Card on another linux machine to install headless I use Desktop Raspberry Pi OS distro. This is tested on a Pi Zero and a Pi 4 in Feb 2020. Insert a new SD …
SSH Port Forwarding
There's heaps on this on the internet and a good book . Here is my usage, which is useful for IoT connections. Remote Server Access I want to connect remotely to a web server on …
Hacking an IotaWatt ESP8266
I need to flash the IotaWatt firmware (and write new files to the SD card) for two reasons: firstly I have a bricked IotaWatt, and secondly I want to try to modify the firmware to …
Grafana and InfluxDB on a Pi
Instructions as of late 2019! I used a Pi Zero W. This works but was pretty slow and awful for a my application. I then tried with a RPi 4B 2Gb and a RPi 3B. …