How to build a breadboard based Raspberry Pi energy monitor

Submitted by Guest on Thu, 25/04/2013 - 20:01

Hi to all, and congratulation for this very useful website! I'm trying to develop an energy monitor based on Raspberry Pi. I would know if this guide can also be used with Raspberry:

http://openenergymonitor.org/emon/buildingblocks/how-to-build-an-arduino...

If not, how can I modify it? Could you give me a schema like this? I would use a Raspberry Pi with an ADC board based on MCP3424 and I have to monitor both voltage and current.

Thanks in advance.

Re: How to build a breadboard based Raspberry Pi energy monitor

Submitted by Robert Wall on Thu, 25/04/2013 - 21:29.

Clearly we cannot design and test for every combination of processor and ADC. If you read the Building Blocks section, there are many articles which together with the data sheets for your chosen ADC and sensors should give you all the information you need.

Somebody might have done something like you are asking, but as almost everyone visiting this site seems to use either the Arduino or the emonTx as the measuring front end, I have seen nothing that would directly help you, because as I'm sure you realise, the RPi has no analogue inputs.

Alternatively, you might want to consider the special-purpose i.c's specifically designed for electricity meters.

We might be able to help you with specific questions though, once you have decided on your design.

Re: How to build a breadboard based Raspberry Pi energy monitor

Submitted by richmc on Thu, 25/04/2013 - 22:01.

The Raspberry Pi is a completely different animal and would require a shield of some kind to interface with the CTs bearing in mind that the Raspberry Pi is if you shop around about three times the cost of an Arduino Uno I can't see the point of using it. You have to bear in mind that the GPIO is not the same as the analog I/P system that the uno has and would require A/D converter chips to drive it, true the Pi would have vastly superior video display capabilities buy why when a simple single LED tells you all you need, and if you went the emon route you would have an advanced display.

Re: How to build a breadboard based Raspberry Pi energy monitor

Submitted by franknfurther on Sat, 04/01/2014 - 08:41.

Hi all, great site! I have a very similar question: Is there any shield like the emonTx Arduino Shield V2 that can be used directly on the Raspberry? If not, can the Arduino directly send the data to your EmonCMS database without the need for a Rasberry or other computer/base station in between? Sorry if this question might be a bit primitive, but I am quite new to this. Your help in pointing me to the right direction would be appreciated. thanks in advance.

Re: How to build a breadboard based Raspberry Pi energy monitor

Submitted by boelle on Sun, 05/01/2014 - 16:39.

you would at least need a ethernet shield then... or wifi shield.... the programming side i cant help with thou

Re: How to build a breadboard based Raspberry Pi energy monitor

Submitted by jmg22 (not verified) on Wed, 08/01/2014 - 00:56.

http://openenergymonitor.org/emon/node/3434

Re: How to build a breadboard based Raspberry Pi energy monitor

Submitted by pindignado (not verified) on Sat, 29/03/2014 - 18:41.

Hi i want to use raspeberry pi for to monitor power use at home?

It's possible to do that? what i need?

Thanks

Re: How to build a breadboard based Raspberry Pi energy monitor

Submitted by Robert Wall on Sat, 29/03/2014 - 18:52.

See here: http://openenergymonitor.org/emon/node/3872

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