Grafana Multi-Tenant
Teams, Folders, Organisations … and Provisioning. What’s up with that? I use Grafana to display data about IoT devices (PhiSaver). It’s all […]
Category: Internet Of Things
Complex Electricity Metering
How to get meaningful energy efficiency results when there is a spaghetti of boards Look at that mess! We focus on the […]
Smart House: Why? How?
I want some simple functions for the H33 house: Energy monitoring: easy with Phisaver at the switchboard House off: turn off all […]
Postgres Tricks
Log-the-frick-in sudo -u postgres psql dbname # typical root user psql -h localhost -U user -W dbname # default host is unix-domain […]
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 […]
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 […]
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. […]