Why the hell can’t I login to PostgreSQL?
Some possible reasons and solutions Wrong host Use the “-h” flag: psql -h localhost -U phisaver –password Wrong syntax Use -U and […]
Category: Computing
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 […]
WordPress Setup (and Migration)
WordPress: meh. But anyway:
Energy Dashboards
Currently (2021) PhiSaver has one billlion data points. It’s a bit hard to display in a single user dashboard. An efficient 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 […]
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) […]
OpenVPN for IoT : Linux Server, Various Clients including RaspiZero
Using a AWS Linux server, and Raspberry Pi Zero clients Situation Goals Solution Details Setup OpenVPN Server and CA add_client.sh Run on […]
linux commands
Test OpenVPN server on it’s standard UDP port telnet is so 2020 so use nc which does UDP too -v verbose -z […]
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 […]
Backup and Restore SD Cards using linux
Once a Pi is setup, it’s useful to clone the SD card and save the state. Here’s how. See more details on […]