Electricity Cables: size matters
Ever see a big power cable and wonder the maximum current it can carry? No? Oh well, here it is just in […]
Category: Energy Monitoring
CTs for IotaWatt 8266
CT Orientation Echun (ECS) and Accu CTs can be used with the IotaWatt. To align with current flow: Big CTs – configuration […]
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 […]
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 […]
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 […]
Energy Monitoring: Circuit Positives and Negatives!
Control Volume Switchboard This is how I use a control-volume approach to practically monitor circuits. It’s half maths and half “it’s easy […]
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) […]
Solar PV, Batteries and … Maths
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 […]
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 […]