Current Sensing?
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i've already thought about designing some power monitoring stuff, but i saw there are already nice opensource hw at emon, and didn't want to reinvent the wheel..
for instance : https://shop.openenergymonitor.com/
the arduino shield is pretty cheap imho, can be mysensorized as it's rfm69 compatible, or not so hard for nrf as it's a shield
there's also an optical meter connect it to your favorite node, sensebenber or others homemade, you should be almost done ;)@scalz - Thank you for providing that link. I've now just realise how easy this module could potentially be. I also don't like the idea of it costing nearly £20 for that sensor that sticks onto the LED. If we want a dumb node option, this sensor on the front relaying back to MySensors like the example sketch does right now, but i'm thinking a sensor like that small round module that sticks onto the meter, connected to the arduino (possibly through a 3.5mm jack to make it simple for remove and install) and then a custom made atmega board in a box sending off the data to MySensors.
I think i may have my next project already! I may make this nRF24l01 and RFM69 compatible rather than just the nRF24l01 that i use. We could get this stuck on the front with some simple velcro tape cut in the same shape as the light sensor module to be neat, a little 3D printed case with another custom made board holding the light sensor circuitry inside.
I'm going to draft up some ideas for this and publish here for you guys to see.
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@Samuel235
cool. i remember that i saw a cheaper one, but i can't find where, will try to recover mem..
in France, we have the blinkled too, but we have sort of serial protocol on power meters for getting multiple infos. -
@Samuel235
cool. i remember that i saw a cheaper one, but i can't find where, will try to recover mem..
in France, we have the blinkled too, but we have sort of serial protocol on power meters for getting multiple infos.@scalz - I know its not going to be huge savings but any amount smaller is what i want to get for the rest of the community tbh. I would like to make it a complete product to then possibly hand over to the team here to then sell on the store for themselves or to put it on the build page as a nice, complete product like the sensebender or such.
What are your views on DIN Rail mounting things, do many people on MySensors do it do you think, is it something that you like the look of and would contemplate doing in your electric cupboard? I don't do it simply due to location of the electricity cupboard in my house, not really possible for myself.
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oki, keep the good work ;)
i know in France people prefer DIN rails mounting. makes sense, but can be done in lot of ways.. -
Slightly off subject, and lets drop back onto subject after this question:
Would you guys welcome a gateway enclosure that is modelled to fit onto a DIN RAIL? I might come up with some models for the different arduino setups for the gateways that people are running and create a few 3d printable models to put onto the build page too....
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maybe useful for some people. but i wouldn't put my gw at this place imho..
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Openenergymonity seem to resell "BBSP-LPD" by enistic.
http://www.enistic.com/homepage?start=10@hek said in Current Sensing?:
BBSP-LPD
Do you have a link for the product on Openevergymonity? Can't find the product you're speaking of.
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@hek said in Current Sensing?:
BBSP-LPD
Do you have a link for the product on Openevergymonity? Can't find the product you're speaking of.
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@hek - Do you think there would be a specific need for a clamp sensor over a LED sensor node? Do you possibly think that people would be clamping individual lines out of their fuse box rather than just wanting to know what the overall usage is?
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maybe ot, but for the fun, someone selling iot devices for the electric cupboard, told me once, he had to have an expensive decennial insurance for selling his devices even if it's only connected to the serial protocol and his device is dc.. crazy! hopefully we know what we do :)
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@hek if i search in my folder archives, i'm pretty sure to find this :grinning: (because i designed this a while, but never tried this one..). i mean the clamp sensor.
Edit: ah oki the optical one..not done this one, not hard, i let it for you @Samuel235 ;) ive enough projects in progress, and i don't need it though lol -
@Samuel235, I was just looking at the picture :)
An overall pulse sensor is really accurate and useful for whole house consumption.
But clamps also has its applications.
I'm thinking that we could have the Pulse sensor for overall usage and then put clamps onto individual lines that we would want to monitor, such as upstairs lights, downstairs sockets, sheds, cookers. This is my idea rather than compicated nodes such as relay nodes to monitor the current usage. I feel that people don't really want to know how much their bedroom lights are using, they want to know how much energy is being used on all their lights. and then for example if they think its high, they replace all with LED lights. Just an example :)
Do you guys feel the same way or do you like the idea of individual monitoring if it was already built into the node without you having to mess around making the nodes with them on there?
I made my relay module with one on there because as a hardware designer it was interesting to have such, but after doing it and thinking about it, i think it may have been just the theory of implication that was a nice thought and that we wouldn't really care for it in reality....
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The boxed pulse sensor with velcro is the perfect solution, but it is darn expensive.
Clamps are a solution, but in order to have power consumption you need also voltage reading and PFC calculation like THIS little project. Imho it is safer to use the pulse sensor :) -
The boxed pulse sensor with velcro is the perfect solution, but it is darn expensive.
Clamps are a solution, but in order to have power consumption you need also voltage reading and PFC calculation like THIS little project. Imho it is safer to use the pulse sensor :)
