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Setup Emoncms on a RaspberryPI with a Hard drive
After the SD Card write issue setback I've been keen to get an alternative that works for running emoncms locally on a raspberrypi. I now have my home monitoring setup running off a raspberrypi with a...
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emonTx V3 AC Adapter Socket Error
Just quick post to highlight a small bug in the first batch of emonTx V3...there had to be something!The barrel-jack socket on the first batch of emonTx V3's has got a middle pin with a diameter of...
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emonTx Family Tree
Now that the new emonTx V3 has been launched in the shop, all pre-orders have been shipped and documentation for the new units is slowly coming together this feels like a good time to take stock of...
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Emoncms (early) Heating Control Demo
I've just hooked up a relay to control my central heating boiler and am successfully controlling it via the new emoncms packet generator module...it feels like the future has arrived in my house :-)The...
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Emoncms control developments and demo's
First Happy Christmas everyone for yesterday!One of the things I enjoy about the Christmas period is that you get some nice time to relax and with relaxation comes ideas and energy to try out some new...
View ArticleDeveloping for Arduino remotely on a Raspberry Pi
I found myself tonight requiring the ability to develop for Arduino remotely on a Raspberry Pi. The use case is connecting an Arduino Uno to a Raspberry Pi to receive data from my Bee Hive Temperature...
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Tutorial on how to create an emoncms module
I've just created a tutorial that covers the basics of creating a simple custom display module for emoncms that shows a readout of current home power use and how many kwh's have been used today.The...
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We Won! Daily Post Business Award 2013 - Green Award Category
We have been lucky enough to be awarded winner of the Green Award category in the Daily Post Business Awards 2013. The Daily Post is a regional (North West Wales) newspaper, the Green Award was...
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emonTH Multiple DS18B20 Sensors
Thanks to Dave McCraw it's now possible to connect multiple DS18B20 digital temperature sensors to the emonTH on the one-wire bus.Two External DS18B20 temperature sensor + internal DHT22 temp +...
View ArticleOEM Gateway: Serial Port > Emoncms Link
In the past we have recommended our simple EmoncmsPythonLink to post data to emoncms which is received on a serial port (this could be an Arduino or USB device such a JeeLink plugged into a Raspberry...
View ArticlePebble Smart Watch Emoncms Display & Heating Control - Dev
Smart watches seem to be all the rave at the moment. They could potentially be a convenient way to check your power and temperature feeds, be notified of events and control your heating.Our friend Ryan...
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We've made the local newspaper!
After receiving the Achievement Wales Daily Post Green Award we recently got interviewed for the Daily Post newspaper. The resulting article gives a bit of background about how we started out complete...
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Emoncms developments and calculating wh totals on the emontx
Rather than posting at length about development on the blog, I've posted what I've been working on recently on the forums, here are links to the posts:Development: Calculating Wh totals on the...
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Direct connection emonTx V3 > Raspberry Pi GPIO
Sometimes it's more convenient to connect the emonTx V3 directly to a Raspberry Pi base station rather than use RF. Both the Raspberry Pi and emonTx V3 run at 3.3V so the serial Rx and Tx serial lines...
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emonTx V3 Antenna Testing
Today we did some quick testing regarding using different antennas with the emonTx V3. Four antenna options were tested (Farnell part numbers listed for SMA antennas) :Note: the graph sub-title has a...
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Elektrocamp, visiting Jerome in Bordeaux and OuiShare
P { margin-bottom: 0.21cm; }A:link { }Lars Zimmerman and Jenni Ottilie Keppler (Open It Agency), Tristan Copley Smith & Jonathan Minchin (Open Source Beehives), Nick Ierodiaconou (Open Desk),...
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ZeroCarbonBritain: Report in short
I've just come across the 'report in short' flyer by zerocarbonbritian giving a very nice overview of their more in-depth report that I've mentioned before that outlines a very positive and thorough...
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Development update: EmonHub, Emoncms&MQTT, Application guides
There's been a lot of development happening recently but not being blogged about so here's a short overview with links to where to find out more:EmonHub (The next version of the...
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Emoncms Mobile View (My Electric)
The latest version of Emoncms (V8) has got a feature called 'My Electric', this is a ready made mobile friendly dashboard.Just click the 'My Electric' button once logged into Emoncms and select your...
View ArticleHardware Developments - Update
Here are a few slides I put together to for a local developers group meeting to show what I was currently working on with regard to hardware developments:OpenEnergyMonitor Hardware Developments May -...
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