Investigating for IotaWatt, AWS, InfluxDB and Grafana

I’ve previously used EmonCMS to log power and energy data from a IotaWatt  / EmonTx system. This works well, but I’ve been looking for a flexible and fast alternative. The combination of IotaWatt, InfluxDB and Grafana look to provide this. My experiences […]

Tips for InfluxDB and Grafana when using IotaWatt

This post is a collection of tips, in no particular order. It follows on from Iotawatt, InfluxDB and Grafana Setup which is a step-by-step. Do that first, then tweak with these. Snippets for Influx # Delete a CT delete from iotawatt where ct=~/Circuit.*/ […]


A39 House – Overview

I’ve recently finished a self-build of a small (90m²) house in Brisbane. It’s been “running” for 2 years now. It’s in Brisbane. TL:DR > See the article in Santuary Magazine (PDF) … or view the time lapse of construction… or there’s a photo […]

TTGO Lora ESP32 V2.1 R1.6

Software Library and Pins for LoRa V2.1_1.6 Site from seller (copied below) shows: Lora, operating on SPI: 26 = DI0/IO0 23 = IRQ/RESET 18 = NSS/SEL (Slave select?) 5 = SCK (clock?) 27 = MOSI 19 = MISO SD Card, also on […]

Remote Battery-Powered Sensor

  Like every man and this dog, I’m going to build a battery powered IoT module. Ideally it will Run for >1 year on battery (solar is an option, but an extra complication) Use WiFi or LoRa or radio to wirelessly transmit. […]

Sizing a Battery and Solar System with Phisaver Data

This follows how I sized a solar and battery system for my house, using energy monitoring data from phisaver. An example of the data is below: Sizing the System Firstly I checked the daily consumption, and night-time consumption: Daily average of 13.5kWh/day. […]

Scott Road House Gallery

I’ve recently finished a self-build of a small (90m²) house in Brisbane. It’s been “running” for 2 years now. [ape-gallery 360]  

Iotawatt: Single Tenant InfluxDB and Grafana Setup

This post summarises how I configure IotaWatt, InfluxDB and Grafana to display energy consumption. It uses an AWS EC2 instance. See installation for preliminary details and IotaWatt: Multi-Tenant Setup using InfluxDB # bash influx # influx CREATE DATABASE iotawatt-database-name USE iotawatt-database-name CREATE […]

Improving Fridge Performance

As recent client had a few fridges, including wine fridges. They varied in age. Initial PhiSaver analysis over a few weeks showed “Power” was the major user. Power includes all powerpoints in this case. Often this is relatively low but here the […]

Installing Grafana, InfluxDB, Apache2 on AWS EC2: Step by Step

A medium-performance setup for Grafana on AWS. Private files at github. Setup the instance t3.large, Ubuntu 18 (or AWS Linux 2) as I’m familiar with it Seperate root and data disks Security group with 8083 (InfluxDB), 22 (SSH), 80 (www) and, optionally, […]