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Pulse counting with the RFM69PI and RaspberryPi EmonBase basestation
The latest version of the RFMPi Adapter board made much of the spare digital and analog IO available for use directly on the RFMPi adapter board. D3 is one of the digital inputs available and can have...
View ArticleHow to setup a WIFI Hotspot on an EmonPi
This guide details how to setup a WIFI Hotspot using the Edimax USB WIFI adapter on an EmonPi or EmonBase to make it possible to connect directly to an EmonPi from a tablet or computer without the need...
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China Shenzhen Electronic Market & HopeRF Factory Visit
For the past two weeks I have been travelling out to the South of China from the UK via overland travel. I have always wanted to visit China but could not bring myself to justify the carbon impact of...
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emonPi, NodeRed and MQTT
Using the emonPi in it's default configuration works great to post data to Emoncms for logging and visualisation. However there may be times when you want some more flexibility and or ability to...
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Ambient Wind Energy Indicator using Node-RED and Blink(1) USB
As we move to a low carbon electric grid with large amount of input from renewable sources we will need to match our consumption of energy to generation. The wind will not always blow and the sun...
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Interpreting Emoncms Dashboards
The emonPi / emonTx standard install is designed to monitor whole house power consumption. An excellent learning exercise that we recommend everyone undertake soon after installing a whole house energy...
View ArticleOpenEnergyMonitor November 2015 - Overview Presentation
Here's a few slides giving an overview of the OpenEnergyMonitor project as it stands currently in November 2015. It features some of the work we have been doing looking at the embodied energy involved...
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Node-RED Emoncms Node
I have recently been experimented using Node-RED for a number of tasks. Thanks to the work of others a Node-RED flow node already existed for Emoncms making it very easy to post data to Emoncms. For my...
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UK Grid Carbon Intensity API
Following on from my blog post creating an ambient indicator to indicate wind turbine renewable electricity generation we have extended the Emoncms UK electric grid statistic aggregation to calculate...
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Remote Control of LightWave RF plugs via MQTT using emonPi with OOK Tx
Using a Raspberry Pi as an emonPi / emonBase web-connected base station for energy monitoring has many advantages (maintainability, remote access, debugging, updated etc.) but it does seem rather...
View ArticleNorth Wales Tech Meetup Presentations
Yesterday evening Trystan and I attend a local meetup in Bangor, North Wales hosted by NorthWalesTech It was a good event with some interesting talks. Here are the slides from the 5min lightning talks...
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OpenEnergyMonitor, emonPi and openHAB
Using the emonPi in it's current default configuration works great to post data to Emoncms for logging and visualisation. However there may be times when you want some more flexibility and or ability...
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Emoncms Android App
Today marks an exciting milestone for Emoncms and the OpenEnergyMonitor project. We are proud to launch an Emoncms Android mobile app. The app is now available on Google PlayTM. What's even more...
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Heat pump Monitoring
For a number of years now I have been working with John Cantor on monitoring heat pumps. John is one of the UK's foremost experts on heat pumps having worked in the field since the early 1980's, he has...
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Heatpumps in the ZeroCarbonBritain model by the Centre for Alternative...
Following on from the last blog post on heat pump monitoring I will try in this post to give a bit of context on heat pumps. Heat pumps are interesting because they provide a way to make efficient use...
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French low carbon energy film featuring OpenEnergyMonitor: ACHIEVING 2050 I...
A few months ago we were lucky to be contacted by a French film team wanting to feature OpenEnergyMonitor as part of a film about low carbon energy. The film "ACHIEVING 2050 I OPTIMIZE ENERG" aired in...
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Heat pump Testing: Initial results
Headline figuresTest period: 17th of October to 7th of February (113.3 days)Electricity input: 413 kWh (3.6 kWh/d)Heat output: 1405 kWh (12.4 kWh/d)COP: 3.4Electricity input includes: heat pump...
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Outdoor Temperature Data from Weather Underground to Emoncms & MQTT
Monitoring the temperature outside your house is super useful to inform your home automation systems and calculate domestic heating (and dressing!) requirements.One way is to monitor external...
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Raspberry Pi 3
The latest and greatest from the awesome Raspberry Pi team! An iterative upgrade but very welcome addition of on-board WiFi and a faster processor. The latest emonSD for emonPi / emonBase seemed to...
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Home Assistant and emonPi
Home Assistant (HA) is a fully open-source home automation platform. In terms of functionality it's quite similar to openHAB however it's architecture is very different it runs on Python 3 as opposed...
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Using Git Submodules for Arduino Libraries
Library management for Arduino has always been a bit of a pain; having to go and download and install all the required libraries for various locations on the internet and hope that they are the correct...
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Attempting to measure and understand the CO2 intensity of grid electricity
Zero carbon energy scenarios such as ZeroCarbonBritain feature significant electrification of energy demands previously provided by fossil fuels such as heating and transport. With electrification it...
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Part 2: Exploring carbon intensity and renewable energy matching: real-time...
This post describes an approach we have been exploring that uses the MyEnergy emoncms app and work on virtual smart grids with Dominic McCann from Carbon Coop. There's a good blog and video on what...
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Part 3: Aggregated supply and demand across multiple households
One of the main problems with looking at demand at the single household level is that demand at this level is very spiky, there are often long periods of low use around 100W and then suddenly a kettle...
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New Forum, Blog and User Guide Website
This will be the last post on this blog. Please visit our new blog. To read this post. We have been busy for the past couple of months building some new websites to improve...
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