DIY Whole Home Power Monitoring with ESPHome & Home Assistant

Рет қаралды 251,720

5 жыл бұрын

Whole home power monitoring and additional circuits such as solar, electric dryer, electric stove, air conditioners, electric car charging, etc with ESPHome and Home Assistant. Other home automation software supporting MQTT can also use this integration.
⚡Parts Used⚡
Split Core Current Transformers 100A/50ma - geni.us/gaRgK
ESP32 NodeMCU - geni.us/gARw9mU
9VAC Power Supply - geni.us/FTfh1
CircuitSetup 6 Channel or 2 Channel Board - circuitsetup.us/index.php/pro...
Official Github Repo - github.com/CircuitSetup/Expan...
Sample ESPHome YAML Config - github.com/digiblur/digiNRG_E...
⚡Sample Calibrations for SCT Sizes⚡
If you have any to add or changes to these, please let us know! These are based on the 6 channel board with 1X gain.
SCT-013 100A/50ma amzn.to/3A4XwrR - 32498
SCT-013 50A/1V amzn.to/3g0hT2S - 15420
SCT-013 30A/1V amzn.to/2FZLdB9 - 9210
ESPHome USB Flasher - github.com/esphome/esphome-fl...
CircuitSetup CrowdSupply - www.crowdsupply.com/circuitse...
Learn CT Sensors - learn.openenergymonitor.org/e...
⚡Products We Use/Recommend⚡
Amazon US - amzn.to/2YZNDeO
Amazon UK - amzn.to/2TnG2R4
Amazon CA - amzn.to/2JWsNq5
⚡Be Social!⚡
Main Website - www.digiblur.com
Discord Chat - discord.digiblur.com
Patreon - patreon.digiblur.com
Facebook - facebook.digiblur.com
Instagram - instagram.digiblur.com
Please note, the product links above could be affiliate links, using them could earn digiblurDIY a small commission of most purchases and helps with future video projects. Thank you! Please note, the product links above could be affiliate links, using them could earn digiblurDIY a small commission of purchases potentially helping with future video projects. Thank you! As an Amazon Associate I earn from qualifying purchases. Please note, the product links above could be affiliate links, using them could earn digiblurDIY a small commission of most purchases and helps with future video projects. Thank you! As an Amazon Associate I earn from qualifying purchases.

Пікірлер: 572

@jrm523 4 жыл бұрын

I want you to know this is fantastic! I am sitting here calibrating and starting to see everything come together. Very excited! I am very glad that I ran across your channel. Thanks for posting this detailed video along with all of the links that you did.

@Sofia-nt4zu 3 жыл бұрын

Does anyone know how is it connected? The hardware I mean

@amisakie 5 жыл бұрын

Great video. You can trick the clamps into thinking that they're is more current if you loop the wire back around and through the meter clamp. So if you had a 10A load with 1 wire through the core if you wrap it around and bring 2 wires through it will read 20A.

@teddyruxpin3811 Жыл бұрын

why would you want to do that? Would that be a way to measure two lines using only 1 CT clamp? So if I wanted to measure a 220V circuit like in the USA (which is basically just two separate 120V lines), I could put the clamp around both wires and it will automatically add up the amps and watts?

@SyberPrepper 5 жыл бұрын

So much cool information. Thanks for taking the time to make this video.

@BradleyBormuth 4 жыл бұрын

Starting with a value of 10000 and the known amperage, we can find the calibration value using the formula (10000)(amperage)/(indicated value). For your example (10000)(0.49A)/(0.32A)=15312. Hope this helps!

@jimbrewer5821 5 жыл бұрын

Travis, Well done video; easy to follow instructions, good explanations, and of course needed mandatory cautionary safety warnings. I just ordered one of the 6 channel boards. Thanks for another great video!

@J18Speed Жыл бұрын

Awesome video! I knew nothing about esp32 and now I know everything :) Ordering this stuff tomorrow.

@digiblurDIY Жыл бұрын

I did one that is a little more recent covering it again. I believe I linked it in the video description.

@mickman144 5 жыл бұрын

Quick tip for those who don't like guesswork. Calibration can be sped up a lot. If you have say 0.32A and expect 0.50 try 0.5/0.32*current conversion factor (like 10000 in the video). You'll get 15624, close to his final 15420. Like mentioned, higher current loads will yield better results using this same process

@TrentSnyder308 5 жыл бұрын

Ah, another math guy! Why "walk it in" if you can just calculate, right? (-:

@digiblurDIY 5 жыл бұрын

Thanks for this! I need to update my numbers now.

@mickman144 5 жыл бұрын

@@digiblurDIY don't stress, like you mentioned the calibration you did with 10-11 amp loads will be much more accurate. I work in large scale energy monitoring so seeing cheap home solutions like this is awesome!

@raytry69 8 ай бұрын

Haha, I just wanted to suggest the same. :D

@DesertGardenPrepper 5 жыл бұрын

another great tutorial! thanks travis!

@normanherps5322 5 жыл бұрын

Great video... Can't wait to get mine I stalled

@arcinandsparkin 5 жыл бұрын

digiblurDIY, Outstanding video. Clear, concise, accurate, and very informative. My compliments for a job well done.

@phillipzx3754 4 жыл бұрын

Excellent video! I have 6 CT's, the meter board and enclosure being delivered Monday. I'm using Home Assistant Core, so my install might be a bit different, but your video is providing enough guidance I should be ok.

@phillipzx3754 4 жыл бұрын

An update to my own post. I switched installs and went with HA on a VM. Now I have access to the "add-on store," which I didn't have before. Anyhow...This afternoon got the ESP32 programmed and installed on the main "meter board." Everything is working fine, but now I need to do an accurate calibration on the CT's. My two cents says that anyone who'd like to install Home Assistant, DO NOT do the install in Windows (Home Assistant Core). Do an install of VirtualBox and install the FULL version which includes everything.

@walterlau3 4 жыл бұрын

@@phillipzx3754 Is your setup still working? I'm on Windows/Virtualbox as well. Any pointers, tips or things to watch out for? These little projects, while fun are timesucks.

@phillipzx3754 4 жыл бұрын

@@walterlau3 It's been working great. My only problem is with Home Assistant and the "History Chart" card in Lovelace. For some reason it stops recording history. I have to refresh the screen manually, but everything else (amps/watts/voltage) works fine. One thing that got me was the CT's for my "mains." The CT's I bought (from the same website) were too small to fit over the wires, so I ordered 2 of the clamps (from the same place) with 16 mm opening. They were STILL too tight, so I used a rasp to remove a bit of the plastic in the opening. They still wouldn't snap completely shut so I tightened them down with some zip ties. So if you want to monitor your Mains lines, I'd suggest finding CT's with 18 mm opening if you have large wires. :-)

@ThingEngineer 2 жыл бұрын

This is so much easier now in the current version as of 8/2022! Still a great video though, thank you.

@digiblurDIY 2 жыл бұрын

Thanks! I did a redo of the later version as well.

@jerobins 5 жыл бұрын

I got the last 6 channel in stock. Thanks for the video!

@digiblurDIY 5 жыл бұрын

Glad you got in quickly. I am sure they will have more soon for others. No fear!

@TrentSnyder308 5 жыл бұрын

If you used several different known-draw loads, you could use "the maths" approach (shown a couple of times in other comments) to calculate the multiplier for each load, then average them to get even closer to the true multiplier for that CT+sampler chip.

@sparky2059 5 жыл бұрын

Note this: When you put hot and neutral wires through a ct, your current reading should be 0 amps on a 2 wire circuit. (aka this how GFCI works through a ct inside the device or breaker) If you clamp an amp meter on the neutral and then clamp it on the hot of the same circuit it will read the same. When clamping both Hot & Neut of the same circuit value will be 0 (balanced) If your clamping it on a 3 wire circuit where the neutral is shared, your reading will be the different or the unbalanced load of the two circuits or if both hot's have the same type of load L1 = 1500W (Black) L2 = 1500W (Red) then 0 watts 0 amps on neutral (White)

@76queen 4 жыл бұрын

hello Travis great video, I copied your file and made a few changes to suit my multi input (3) * 5KW solar system grid connected home (240 Volt Down Under) wasn't able to flash over USB but connected by the serial connection and use a USB- serial adaptor and that worked fine. going to set it up as zero balance grid connect system, put enough power back into the grid to cover the losses during cloudy days and nights if all goes to plan. ...the right pace with just the right level of technical information to get the job job done. thanks.

@digiblurDIY 4 жыл бұрын

There are more changes coming the dev version of the software, power factor, real wattage, etc.

@fredflintstone8048 2 жыл бұрын

In many applications disconnecting a CT output wires will cause it to burn up, or to damage the insulation rating of the secondary windings by causing the voltage to rise too high on the secondary winding for what the secondary wiring insulation is rated for, ruining the CT. Always keep them connected when current is running in the wire they're connected to for sampling.

@JamesFraley Жыл бұрын

Amazing video. And, great finding that CircuitSetup board.

@digiblurDIY Жыл бұрын

I did a little updated one as well kzfaq.info/get/bejne/pJiIjd2UzuCUo2g.html

@jagnum1fan 5 жыл бұрын

I've been holding off for a while now on what to do for this, but this has me interested. Needed a better method of tracking the house and solar. This seems to fit the bill

@bvbob916 2 жыл бұрын

I'm a couple years behind, but this video appears to be what I need. I have a Tech/Computer background. But, I'm a complete Noob RE: Power Monitoring. Hoping you have other videos that will feed my thirst for knowledge.

@digiblurDIY 2 жыл бұрын

I actually have an updated one on this one as well I did last month.

@LifeWithMatthew 2 жыл бұрын

Great video! I get that it's a limitations of I/O but I wish they offered a board with a lot more connections. I'd love to use this to monitor every circuit in my home, but that would cost over 300 just for the boards. That's a lot of stacking as well!

@digiblurDIY 2 жыл бұрын

Check out Emporia kzfaq.info/get/bejne/sJZ6qZeftJ-zh5s.html

@uvatham 5 жыл бұрын

Omg, I was searching for this topic

@digiblurDIY 5 жыл бұрын

Awesome! I love this thing and how flexible it is plus all local control is awesome!

@jefffrilot9667 5 жыл бұрын

Great video. I was actually considering using something from iotawatt. I currently have an Aeotec HEM but was wanting to monitor additional circuits. I'm using power monitoring plugs where I can but still needed something for high current devices.

@digiblurDIY 5 жыл бұрын

I don't have an Iotawatt but have looked at them before I looked at this one. Their software seems very mature but went with the hardware that seem to have an edge up on things.

@pauls8270 5 жыл бұрын

Fantastic video Travis! Very informative and exactly what I have been looking for. Thank you for putting it all together and making the instructions clear and concise. I'm about to order all the parts - is there anything special I need for Australian power (230V 50Hz single phase)? Do you have a recommended 9VAC power supply that is 240v? (the one listed above looks to be rated at 120Vac) Thanks in advance!

@Qosmio1955 3 жыл бұрын

G'day. Did you proceed with this? I, too, am in Australia and was wondering about the 240VAC side of things.

@BrandonKeilman 4 жыл бұрын

Travis, great job as always!! In your example of the LED dimmer at the end of the video. Do you have a clamp on that circuit to monitor that? Or were you able to monitor that change from having the 2 clamps on each of your main feeds coming into the panel?

@digiblurDIY 4 жыл бұрын

I had a 100a clamp on just that circuit as I was isolating things in a controlled environment without a fridge or other automatic devices cycling on or off.

@whitefields5595 4 жыл бұрын

A critical aspect of this is the non-linearity of the CTs. Unless you are operating in the ‘sheet spot’ of the CT then non linearity will be an issue. Do you know if the chip somehow corrects for this? If so how does it do it as I did not notice you characterising each CT for its linearity.

@jonatanboy Жыл бұрын

Great video, really appreciate your approach❤

@digiblurDIY Жыл бұрын

Thanks for watching!

@Drakstal 4 жыл бұрын

Very nice explanations, since im a noob regarding the ESP32 and power monitoring I will have to come back and watch this gain when i Have gotten the hardware and scouted out how my own power central is looking. Thank you!

@electronic7979 5 жыл бұрын

Very good 👍

@beanMosheen Жыл бұрын

That's an older spicy power box too! No finger safe covers on the main lugs.

@joejoe6949 2 жыл бұрын

Awesome man.

@dalescott9330 5 жыл бұрын

Hi, great video!! would like to see a video on setting up grafana.

@digiblurDIY 5 жыл бұрын

Will definitely put it on the list.

@ParkStreetLights Жыл бұрын

Outstanding video

@digiblurDIY Жыл бұрын

Thank you so much 😀

@remcoverhagen192 5 жыл бұрын

Nice video👍

@MuttMuttOutdoors 2 жыл бұрын

Just picked up one of the "split phase solar" that comes with 2 X dual channel monitors and the board they connect to with the ESP 32. Been working on the house and upgraded the panel so figured may as well have good monitoring. Planning to do some grid tie solar as well after I get the roof replaced and some other stuff done. Anyway is there a major difference in how the boards will work compared to the single 6 channel version? I will end up with 4 channels total with 2 voltage channels. My end plan is to throw a 220 breaker into place for the solar to feed in on as I plan to install the panels and grid tie inverters in pairs to be able to use them for 220 appliances along with 110 stuff. And the goal is to be able to island during bad weather if needed using a small 220 generator to provide some basic power and allow the solar to take up the slack during the daytime (yes I plan to isolate from the grid when I do this for safety). By default the board comes with EmonCMS component installed but I don't want to use something else in between the HomeAssistant install to deal with the data. I really want to use ESPHome since I already use it quite a bit for things anyway but kind of getting in over my head with the software setup on this. Looked at the info on GitHub that you have posted and right now I'm not exactly sure what I will need to do. Hopefully everything will ship out and be here sometime next week but going to setup another ESP32 I have now to get started.

@digiblurDIY 2 жыл бұрын

The 6 channel has two of the 3 channel ICs on it instead of one. The board actually doesn't come with any software as it does work that way. The ESP chip that is connected does all the WiFi/CPU stuff and you can put whatever software you want on it with a simple USB cable.

@TrentSnyder308 5 жыл бұрын

Easier way to zero in on the calibration: correct multiplier = test_multiplier * expected_amps / measured_amps. For your example, 10000 * 0.49 / 0.32 yeilds 15469. (I love using math to short-circuit iterating.) The ratio of the correct multiplier to the correct amperage is the same as the ratio of the test multiplier to the test amperage: M[act] / A[act] = M[test] / A[test] x / 0.49 = 10000 / 0.32 Solve for x.

@TrentSnyder308 5 жыл бұрын

This does assume linearity of the system, of course. If a system isn't quite linear, it should get you close, then you can iterate. Since these CTs should be linear, one sample should get you spot on.

@digiblurDIY 5 жыл бұрын

I knew Math genius would come along and show us the light!! :) Thanks!

@TrentSnyder308 5 жыл бұрын

@@digiblurDIY - hehe, not a genius, just someone who has seen the light and understands the "this is to that as that is to the other" concept. I really appreciate you walking us through all the stuff you do. I've not jumped in as far as you, Justin, and Rob, but with your (collective) guidance, many more of us are willing to try. I'm just trying to add my little bit. (-:

@anacod9114 4 жыл бұрын

Appreciate Video! Sorry for chiming in, I would appreciate your opinion. Have you ever tried - Mahorrla Defence Wisdom Method (do a search on google)? It is a great one off product for securing your home from danger without the normal expense. Ive heard some incredible things about it and my buddy after many years got cool success with it.

@subthousandoaks 2 жыл бұрын

Thank you

@richardmcclellan6067 2 жыл бұрын

Thanks!

@naveenearth2243 5 жыл бұрын

Nice video sir,. Could you u give information and how to manage electrical energy and efficienciently....

@divelandy 3 жыл бұрын

Brilliant - thank you! I have just got one of these that replaces some Shelly EM's that are dying :(. This is a great walkthrough video - though it looks like Watt is now available as a sensor value without calculation. Just need to calibrate 9 identical CT clamps - I'm hoping the variation between them is minimal....

@digiblurDIY 3 жыл бұрын

Yep you got it right! The newer board revision and software allows the IC to calculate the real watts. Awesome stuff! A little redo is on my list of videos to update with this new data.

@divelandy 3 жыл бұрын

@@digiblurDIY UPDATE: I have also added sensors in Home Assistant to convert the W into kWh values. I found I received run time errors from the ESP32 when I added too many sensors (65) and had the web server enabled and DEBUG logging. Removing the web server and changing the login to INFO made everything more stable. #from sensor.yaml #For each CT clamp - platform: integration source: sensor.power_monitor_ct1_power name: Power monitor CT1 energy unit_prefix: k round: 2 #For the total consumption - platform: integration source: sensor.power_monitor_power name: Power monitor energy unit_prefix: k round: 2 this I then feed into a utility meter for daily/monthly/yearly tracking. #from utility_meter.yaml, for most clamps, I have monthly and annual trackers grid_monthly: source: sensor.power_monitor_ct1_energy cycle: monthly grid_yearly: source: sensor.power_monitor_ct1_energy cycle: yearly Thanks again! Steve

@CarmeloRoldan 2 жыл бұрын

@@digiblurDIY I'm about to pull the trigger on this. Are you saying you don't need to do the calibration portion of the clamps in this video with the newer boards?

@digiblurDIY 2 жыл бұрын

Not unless you want to tweak it. They did the calibrations already but it isn't a bad idea to check it.

@CarmeloRoldan 2 жыл бұрын

@@digiblurDIY Cool. Just have to buy these now! One more question: So in your original video, you indicated to get the 100A/50mA clamps for all items to monitor. I'm still watching your second video, but sounds like you are now indicating 100A for the main lines coming into the box and 20A/25mA for everything else (assuming the other items I want to monitor are under 20A), is that right? I have 3 breaker boxes (2 in basement, 1 on first floor), so I may need to do multiple boards to cover everything.

@normheath7447 3 жыл бұрын

Great video, I couldn't have got it working without it. I am disappointed the 100 amp current clamps do not fit over 4-0, 4-0, 2-0 aluminum wire coming into my breaker box as my intent was to measure my whole house power usage. Any suggestions?

@digiblurDIY 3 жыл бұрын

Bigger clamps. They make some very large clamps as well. Circuitsetup.us carries various sizes too.

@buzzdev 2 жыл бұрын

This is very good information. Many thanxs. But how would you use this on solar power input? It is DC and these clamps work with AC only. Thanxs

@walterlau3 3 жыл бұрын

@digiblurDIY Great video, I got my system up and running, and for the life of me I can't figure out why the real watts are way lower than it should be on one of my main feeds. I flipped the CT around and got negative watts. I gave up and just did a calc (volts x amps). Any ideas to get the real watts working? Also, is there some other code to get the daily kWh to reset at midnight; mine just keeps adding with no reset to zero?

@digiblurDIY 3 жыл бұрын

Are you using the version that the IC does the calculations? If so, make sure the amps and voltage are calibrated and the IC should do the rest of figuring out the actual watts based on the power factor.

@sunlightconversions828 4 жыл бұрын

Looking to monitor my mains with this setup and use the data to control a CAN enabled charger. Anyone have any experience with anything similar?

@firthhaigh5297 3 жыл бұрын

Hello Travis have set up same power monitoring thanks to your great tutorial and information , the only issue I have is the need to reset power every few days to get it back on the network, any ideas?

@digiblurDIY 3 жыл бұрын

Enable the AP mode in ESPHome and see if maybe it is falling off the network.

@paulkossaify 4 жыл бұрын

what is the minimal rating we can use the 9 or 12 AC adaptor? knowing that i am only using clamps only for 2 phases out of my 6 input v.15 board

@digiblurDIY 4 жыл бұрын

I use a 9VAC adapter on mine without any issue, the board states 9-12 to be used.

@Wuast_3D 3 жыл бұрын

is there anyway to get this in other countys ? i should pay more shipping than the single phase board costs for germany ...

@billschatzow9919 3 жыл бұрын

The calibration code suggested at esphome is: sensor: - platform: ct_clamp sensor: adc_sensor name: "Measured Current" update_interval: 60s filters: - calibrate_linear: # Measured value of 0 maps to 0A - 0 -> 0 # Known load: 4.0A # Value shown in logs: 0.1333A - 0.1333 -> 4.0 This seems like a much easier way of doing it. Maybe I am missing something?

@tomk6431 5 жыл бұрын

Great video - thank you! Regarding the warning about unplugging the CT From the board - I want to make sure I am understanding (sorry if this is a dumb question) . If I unplug the RCA plug from the board the tip could be dangerously energized? Is that correct? Would this be for all CTs or is their a certain CT I should look for that would reduce or eliminate this risk. How would you safely unplug it from the board? Thanks again!

@AnilGhatikar 5 жыл бұрын

Yes All CT's by deafult are dangerous when the secondary is not connected to load or short circuited. To understand imagine a ct of a ration of 200 to 1 ( 200 primary amps results to 1 amp on secondary) so when open circuit CT will amplify the 100 V on primary by 200 times .

@tomk6431 5 жыл бұрын

Anil Ghatikar is this the case with all CTs? Is there a way to compensate for this and safely remove the plug? Thank you for your reply!

@digiblurDIY 5 жыл бұрын

They can be used safely if you just take your time and go through the motions. The YHDC models I used either have the zener diode or burden protection circuit in them. To prevent any danger. Remove any load from the circuit first then you can unplug them. Do not turn the circuit back on until either the CT is removed or is plugged back in the board.

@forster164 4 жыл бұрын

I'm sure I'm missing something small but should the sensors be picked up automatically with the Mqtt integration? I see tons of info if it was a tasmota device but not a lot for anything else. Any help would be greatly appreciated

@digiblurDIY 4 жыл бұрын

Yes, ESPHome uses either MQTT or API and they pull into HA depending on how you configure ESPHome.

@shilcrypto1329 3 жыл бұрын

Hi love your video and great information. As I am in Australia and we have 240 V systems and I have 5 kW solar on the roof, and the solar hot water system, also the house has CBUS home automation. I want to monitor my consumption and solar production, which system would you recommend? Thanks

@digiblurDIY 3 жыл бұрын

It will work with 240v fine, I use it on 240v split phase here. All down to how many channels you want to monitor.

@amro00 4 жыл бұрын

Hi Travis, i'd really thank you alot for all the information and knowledge you gave us on all your videos. I have a question regarding this circuit , Is it able to measure my entire house which is 3 phase / 220 Volt ?

@digiblurDIY 4 жыл бұрын

Thanks! Yes it can measure up to 6 separate current draws and also more can be added by expansion boards as well.

@kozokeith 4 жыл бұрын

@@digiblurDIY Great tutorial!. Follow-up question: hen using an expansion board, how do we determine which additional cs_pin (beyond 5 and 4 used for the base board, 6 connectors as noted in your code sample. Appreciate any tips! Thanks.

@DeminicusSCA 3 жыл бұрын

i see that there is some sort of limit on the 6 channel add on boards, they say you can have 6 add on, plus the mainboard (48 total clamps) but if you are doing current and power sensor, you can only have 3 boards. i am just getting started and don't understand much on the esp hass.io world . But my question is can you have multiple EPS32 feeding back to the hass.io for this monitoring?

@digiblurDIY 3 жыл бұрын

You could have hundreds of esp32 boards around the doing things.

@sammyhall7786 4 жыл бұрын

I’m interested in doing some whole home power monitoring as well as some automations using HA and Node Red. Would you still recommend this as your favorite option for PM?

@digiblurDIY 4 жыл бұрын

Hell yes... love this board. You'll see another one going in soon in the project house.

@markjacksonpulver3546 5 жыл бұрын

Does the wattage calculation take into account the phase difference in the voltage and current? Watts vs VA.

@digiblurDIY 5 жыл бұрын

I know on the 2 channel it did for me as I was reading negative watts. Didn't think the phase difference through all the way. Doh.

@gannas42 4 жыл бұрын

Has the sensor support been merged into the production build of ESPHome or do you still recommend the Dev build?

@digiblurDIY 4 жыл бұрын

It has been merged but there are new sensors like the actual wattage usage, power factor etc in dev.

@timothymason5545 Жыл бұрын

Do you have an updated video of this? Just want to make sure it is the latest version. Great work.

@digiblurDIY Жыл бұрын

This one kzfaq.info/get/bejne/pJiIjd2UzuCUo2g.html

@replicante1214 2 жыл бұрын

Amazing video, congratulations. I would like to use Split Single Phase Energy Meter for an industrial application. Do you know how fast can it sample? Is it possible to reach sample times of around 100ms with ESPHome/EmonCMS?

@digiblurDIY 2 жыл бұрын

It is more down to the host processor. I wound use something faster like a Raspberry Pi 4

@FPVMike 5 жыл бұрын

love your videos mate, so good, keept it up. but please get a hair cut. just use clippers on no1 or no2. it will look 1000x better :)

@digiblurDIY 5 жыл бұрын

No2 on the sides. It isn't totally gone just yet. :) camera removes it and adds 10lbs to you ya know.

@KhaiNguyen-ty5fm 4 жыл бұрын

In my esphome configuration, I use power function and power template which P = Volt*Current to compare the watts value. The power has about the same value when the load has less than 100 watts or over 1200 watts. if the load between ~100w to ~1200w, the value in power function always has about 50-150 watts less than the power template sensor. I wonder if I need to do anything to get it calibrate properly. Thanks,

@digiblurDIY 4 жыл бұрын

Check out the new wattage sensors in the latest esphome-dev version as you let the chip actually report the true wattage and not calculated.

@KhaiNguyen-ty5fm 4 жыл бұрын

I got the answer by talking to my colleagues at work. They said I*V is just apparent power which is not true power, that's why I got close match true power and apparent power (I*V) when I calibrated with 80 lights bulb and heat gun at full load 1200 watts.

@digiblurDIY 4 жыл бұрын

Yep, that's what I'm talking about. I use a power factor 1 device to calibrate things but then use the new ESPHome Dev sensors to let the board actually report the real wattage. Also I saw some other comments by you but I think the spam filter is filtering out the ones with links.

@darkshadowsx5949 4 жыл бұрын

do you know how to use the arduino mega with esp built in? i want to use all 16 analog pins to monitor 16 breakers individually. that way i can find electrical problems and power drainers faster. when i get around too it i can off load the ones that use the least to solar.

@digiblurDIY 4 жыл бұрын

No, I haven't messed with that hardware yet.

@johnraahauge4552 4 жыл бұрын

Just a heads up. Just calibrated my system and also had to use a 2x Multiplier on my SCT-019 200A Clamp to get the value high enough.

@digiblurDIY 4 жыл бұрын

Thanks for letting us know!

@digiblurDIY 4 жыл бұрын

Side note.. 2x as in the gain PGA?

@johnraahauge4552 4 жыл бұрын

digiblurDIY Yes, just like I had to ad a multiplier for voltage I had to do it for current also when using the SCT-019. Didn’t have to do it with the SCT-013.

@digiblurDIY 4 жыл бұрын

You can change the PGA gain and the IC turns up the gain of the 3 channels.

@johnraahauge4552 4 жыл бұрын

@@digiblurDIY I missed that part. Just figured I had to do it with a multiplier on the Voltage. So I take the PGA gain only adjust current and not voltage then? Is it a straight out multiplier, so if I set it to 2X I can just divide my SCT-013 numbers by 2?

@firepilot17 2 жыл бұрын

Just thinking about doing this over the winter. How has it held up? Anything you would do differently now instead of what’s in your video?

@digiblurDIY 2 жыл бұрын

I did a recent update on it a few months ago. I went to 12 channels on it. Still kicking and working great.

@mariopalma3802 4 жыл бұрын

Hi digiblurDIY, I found your video really intresting even if it exceed my basic knoledges. I'm asking you if you know a proyect to measuere the power and cut some lines when the total power is above a certain limit (to avoid automatic shut off in the energy company meter). I'm looking for a solution for an underfloor electic heating system with a line for each room. Thanks for your advice.

@digiblurDIY 4 жыл бұрын

If you had some relays installed on those lines then yes you could use this if you wanted to or any other power monitoring on those lines.

@mariopalma3802 4 жыл бұрын

@@digiblurDIY Thanks for your reply. I have to figure out how to connect the relays and how to compute the total Watts in order to decide which line I have to switch off. Thanks again.

@MrBlade2021 5 жыл бұрын

Not to be a nag... BUT.... that breaker box needs some organization! On a positive note, Thank you for this tutorial, and VERY nice job on your graphs in grafana.

@digiblurDIY 5 жыл бұрын

Would love to rip and replace it indeed. No need for the electric dryer, stove and water heater circuits anymore. It's on the agenda when the emergency generator is done as it is original to the house. Thanks! I am pretty green when it comes to grafana. Need to learn so much more but wow it makes some nice graphs.

@MrBlade2021 5 жыл бұрын

@@digiblurDIY Sounds like you got a decent project in your mist! One thing I might add is if it were me, do some before and after shots just to really show off a nice box. cause lets all agree, who doesn't like checking out a nice box? am I right?! Yeah grafana is defiantly an awesome tool. I had mine pulling data from a MySQL database before but this week I actually started using influx for logging sensor data. So far, its been very rewarding!

@haythamsawma8673 2 жыл бұрын

Interesting content, Thank you. If i am powering my ESP chip from an external source, should the ground from the energy monitor be connected to the same ground that is powering the chip for the monitoring to function properly? Any schematics you can share for this setup?

@digiblurDIY 2 жыл бұрын

I am just using that power supply I showed wired to mains power.

@teddyruxpin3811 Жыл бұрын

Thank you for this. I spent the last two weeks following this tutorial and building my power monitoring system and it's all done. Now I'm trying to add another sensor in HA that calculates kWh. How can I do this?

@digiblurDIY Жыл бұрын

Yes, i would just add another in the ESPHome YAML itself.

@ranjanpal7217 3 жыл бұрын

Amazing Explanation...Just one query..If at all we want to connect SCT to Arduino GPIO pin, do we need to cut the SCT and solder it to the GPIO pins?

@digiblurDIY 3 жыл бұрын

No. You need more than that to do it just via another board. See my smart dryer videos.

@billschatzow9919 3 жыл бұрын

Have you added this to the 2021.8 energy monitoring now in HA? HA does not automatically pick it up as an energy device.

@digiblurDIY 3 жыл бұрын

Yes, I added it. I wasn't sure if it was due to the name or config or using MQTT or whatever. I did this (keep in mind KZfaq will eat up the YAML formatting I'm sure) utility_meter: daily_total_kwh: source: sensor.12c_total_kwh cycle: daily daily_minisplit_kwh: source: sensor.12c_total_minisplit_kwh cycle: daily daily_total_phase_l_kwh: source: sensor.12c_total_phase_l_kwh cycle: daily daily_total_phase_r_kwh: source: sensor.12c_total_phase_r_kwh cycle: daily

@alexsu6872 3 жыл бұрын

Would each CT clamp need its own calibration? I have the SCT-013 100A/50ma and wonder if I can just use the number 32498 since it doesn't seem to depend on the voltage of the circuit

@digiblurDIY 3 жыл бұрын

I have found they are really super close myself and didn't need to calibrate each. I just did each model.

@jimb032 5 жыл бұрын

Just chop the.little tag on the meter and yank it. You don't know what happened to it. ;). Or at least that's always the story "someone i know" AHEM went with. I thought most models of CT especially the one sold with that has the burden resistor, no? great video!

@digiblurDIY 5 жыл бұрын

Lol no comment on that first part. They actually do make a 100a with a 1v output. www.mcielectronics.cl/website_MCI/static/documents/Datasheet_SCT013.pdf

@BitesandGo 3 жыл бұрын

Is there may be any other option for that 6 channel board? I'd need to monitor the 3 phases, and I don't find that board here in germany :(

@digiblurDIY 3 жыл бұрын

Check the readme here for that setup. github.com/CircuitSetup/Expandable-6-Channel-ESP32-Energy-Meter

@mattriding5588 5 жыл бұрын

I am wondering if the board is accurate enough to... Instead of adding SCT clamps to other circuits only clamp to the main input and develop signatures based on voltage changes for other devices coming on and off. For example. The dryer draws xxxmA and if you detect a change in voltage of xxxmA the trigger automatons for your dryer. Fridge draws xxymA, bedroom fan yyymA, etc...

@vonries 5 жыл бұрын

I don't know for sure, but I would not think so due to the following. It would take less energy to reach the temperature set on your dryer from summer to winter because of the air temperature. Also if you ran two loads back to back the air temperature would be different, so the drier would not have to work as hard. But that's just my guess.

@kabturek 5 жыл бұрын

Check the paper for NILM - non invasive load monitoring

@jdeg2000 5 жыл бұрын

You could figure out what is what if they are inductive and resistive loads. The metering ICs figure out reactive and apparent power. So you could, for example read the "signature" of you electric dryer when it is on. Reactive power will be low (apart from the motor that spins the drum). Obviously that would take a bit of work over something pretty packaged like Sense.

@mattriding5588 5 жыл бұрын

@@kabturek This is a kewl idea. I am going to look into this further. It would open a whole new world if you you could, in some cases determine what is on and off based on load. I see HA reaping huge benefits from this

@79tonyn 4 жыл бұрын

I wanted to share my CT Clamp settings after changing them to a bus bar style clamp. The part number is xh-sct-0750-100. gain voltage - 3730 gain ct - 62500 gain pga - X4

@digiblurDIY 4 жыл бұрын

Thanks!

@billschatzow9919 3 жыл бұрын

Just adding a whole house generator and will now implement your tutorial. Another excellent job! Do you have a recommendation for the case if you can't print your own?

@digiblurDIY 3 жыл бұрын

STL files are here. github.com/CircuitSetup/Expandable-6-Channel-ESP32-Energy-Meter/tree/master/Hardware

@billschatzow9919 3 жыл бұрын

@@digiblurDIY Not looking for the STL files. Looking for a commercial case. (Don't have a 3D printer)

@digiblurDIY 3 жыл бұрын

Ahh... gotcha. It might be best to get one from Circuitsetup? Otherwise you could find project box with a mounting plate inside of it that would fit the board. amzn.to/3c7Hssa

@billschatzow9919 3 жыл бұрын

@@digiblurDIY Thanks. Circuitsetup had the 3d printed box cheap.

@haythamsawma8673 4 жыл бұрын

Great video. I have the 2 channel board. It is up and running using Esphome. I manage to get readings on the CT1 input and NOT on the CT2 . Any reason behind this? Could you point me in a direction that i can explore to resolve this issue. Thank you in advance,

@digiblurDIY 4 жыл бұрын

Did you happen to try CT3 in the config maybe? I know I had ESPHome running on it with my sample config.

@haythamsawma8673 4 жыл бұрын

@@digiblurDIY do you mean changing this (id: "ct2Amps") to this id: "ct3Amps"? Thanks

@digiblurDIY 4 жыл бұрын

Yes the chip is a 3 channel on the board and though maybe you were hitting the empty channel.

@matthewnoecker5062 5 жыл бұрын

just finally got my board in the mail today and I am having problems when I try to compile with your sample yaml. I get the following error - Platform not found: 'sensor.atm90e32'. any help would be appreciated

@digiblurDIY 5 жыл бұрын

It needs the Esphome Development branch for that sensor.

@jason_zhemingzhang 4 жыл бұрын

Can this board measure 240v for things like EV charger and furnace? I really want to get one but can't find any other resource other than this video and the website.

@digiblurDIY 4 жыл бұрын

Yep, it will work fine in 240v environments. Just needs to be calibrated.

@geeksqad Жыл бұрын

Thanks for this nice video. I really like to set this up for power monitoring, however, I have this weird two panel set up in a detached garage and wonder if there is a way to unify data gathered from two panels (with an ESP each)? Thanks!

@digiblurDIY Жыл бұрын

Is one just a sub panel? Or two meters?

@geeksqad Жыл бұрын

@@digiblurDIY Sub Panel, one meeter. No way to run wire in between, hence I’d like to use two ESPs but show the aggregated power data in one view.

@digiblurDIY Жыл бұрын

Ahh..you want to monitor separate circuits in the sub panel too?

@geeksqad Жыл бұрын

@@digiblurDIY exactly, monitor a second circuit and a second array of solar panels too. That all combined in one view.

@digiblurDIY Жыл бұрын

Yeah I could see needing two given the two separate locations

@76queen 3 жыл бұрын

Hello Travis Having an issue with the board falling off the wifi network, only way to reconnect is to power down, any pointers?

@digiblurDIY 3 жыл бұрын

I would try a new esp chip first.

@jean-marcbelisle6131 3 жыл бұрын

Noticed you have a 125A mains box. Is that why you are using only 100A CTs. On a US (or CANADA) split phase 240V 200A main panel, would you not need to use two 200A or 250A rated CTs, one on each service input wire ???

@digiblurDIY 3 жыл бұрын

Yes that's all I needed and it rarely hits 50 to 60 amps per leg.

@raymondcampbell876 2 жыл бұрын

Hi, I still have the old version board, does this still work or do you recommend me upgrading to the version 1.4 board

@digiblurDIY 2 жыл бұрын

Mainly more of real wattage calculations but not sure what version you have.

@bdoeyo 3 жыл бұрын

How do you deal with the power factor of each particular load ? In AC Power in not VxI but VxIxcos(phi), phi is the phase difference btw 2 sinusoidal signals

@bdoeyo 3 жыл бұрын

‘Tis might explain the measurement differences with the ShellyEM, I guess the ShellyEM deals with it internaly

@digiblurDIY 3 жыл бұрын

The IC handles it all. www.microchip.com/wwwproducts/en/atm90e32as

@gdreelin 5 жыл бұрын

Hey how does this compare to commercial ones like Sense for monitoring power? I always considered using one but they are a little pricey to say the least.

@digiblurDIY 5 жыл бұрын

I don't have one myself nor have I used one. I have only seen the reviews which seem to be mixed even on the real ones. It does seem inferior in my opinion if I can't see specific circuits and it costs more. Then combined with it not being open source and I assume cloud based I just can't even call it an option.

@TrentSnyder308 5 жыл бұрын

IIRC, the Sense system is supposed to be able to suss out (over time) what devices you have in your house. They do micro wave-form matching against their databases to try and recognize certain kinds of loads. If you have smart plugs (with power monitoring; e.g., TP-Link HS-110) that you allow Sense to access, then it can differentiate those loads, making it easier to find all the other stuff. Or so they say. And yes, it's more spendy [sic], and it's closed source, and it's "in the cloud" (read "on someone else's computers") so lots of downsides, but if it really does what you want, and you're willing to accept all the privacy concerns, etc. ... it's kinda a compelling story. "If."

@faisal8815 3 жыл бұрын

Sorry I have a little bit of knowledge but Were the two ct sensor for the mains are in series or parallel?

@digiblurDIY 3 жыл бұрын

It's a split phase power feed. So each CT is on each leg.

@netmagi 5 жыл бұрын

I put in an iotawatt back in December to accomplish the same trick. NO affiliation, but check them out. $129 in a case for 14 channels. CT's are extra of course.

@digiblurDIY 5 жыл бұрын

Nice! Curious how stable in measuring it is as I have heard mixed stories but never personally was able to talk with someone who has one installed.

@netmagi 5 жыл бұрын

digiblurDIY mine has been rock solid stable, and is within 1% of util co’s kwh each month. My only complaint is that they initially shipped me the wrong ct’s, but they took care of it very quickly.

@jdeg2000 5 жыл бұрын

@@netmagi How often does that take readings? Also, do you get metering data like power factor and reactive power? From what I understand it uses standard ADC IC's so the calculations are done in software.

@netmagi 5 жыл бұрын

@@jdeg2000 Provides pf, apparent power, and real power. I don't know enough about it to tell you how it's accomplished, but I can graph all 3.

@dayvebergman 5 жыл бұрын

Do you have it integrated with Home Assistant and can you see the actual usage in real time?

@JeffZiegler76 3 жыл бұрын

Have you ever seen a Arduino shield for the Split Core Current Transformers like the one you are using?

@digiblurDIY 3 жыл бұрын

No, I've only used it with the ESP32.

@devinwright1928 3 жыл бұрын

Does the direction of the CT clamp matter? Also if you have something like a range with a dual breaker (30, 40a etc) I'm guessing you need to monitor both leads to get the total? Thanks

@digiblurDIY 3 жыл бұрын

The clamp direction will make a difference using the new sensor that shows the real wattage and not just calculated. If it is negative just flip it around.

@devinwright1928 3 жыл бұрын

@@digiblurDIY Do you have more info on the new sensor? I have the latest board and used your yaml file that is calculating watts. I tried it both ways and it was positive in both directions. Thanks

@digiblurDIY 3 жыл бұрын

esphome.io/components/sensor/atm90e32.html

@normheath7447 3 жыл бұрын

I have the ESPHome 6 channel energy Monitor up and working. I want to add another ESPHome Device, a ds18b28. Do I add the new device config file on to the end of the energy monitor config or do I create a new config file. If I create a new file and upload it to the same Rpi won't it over write the energy mon file?

@digiblurDIY 3 жыл бұрын

No, you make another device. Hit the plus to add a new one.

@unstoppable008 3 жыл бұрын

Hey Travis, I'm having an issue where the board goes unresponsive every now and then...The "restart board" command isn't working and I have to power cycle it for everything to come back online. Ever had this happen?

@digiblurDIY 3 жыл бұрын

I haven't but I would try another esp32 to see if that is the issue.

@davindameron9092 5 жыл бұрын

For monitoring backfeeding solar panels, I assume you'd want to flip the current clamps around?

@digiblurDIY 5 жыл бұрын

I don't have solar and with all the various systems and such you would have to look at yours and figure out what you want to monitor and try it out.

@jdeg2000 5 жыл бұрын

The CTs would go in whatever direction current normally flows. Depending on how you set it up you may want negative readings to calculate net energy consumption.

@stevehurst7653 4 жыл бұрын

I'm getting an waiting for header error when I try to flash the ESP32 NodeMCU. Any ideas?

@digiblurDIY 4 жыл бұрын

Some of them you have to hold the flash button while applying power.

@EngineerK 3 жыл бұрын

For us hassio noobs, what would be the reason to use MQTT over the api? Thanks for this video, super cool!

@digiblurDIY 3 жыл бұрын

I prefer to use MQTT as it just works and is the center of my home automation. I can act on various values in NodeRed without going through HA.

@johnraahauge4552 5 жыл бұрын

Has anybody found a good case for the 6 Ch version? My panel is on the outside of our house.

@digiblurDIY 5 жыл бұрын

For outdoor stuff I have found various weather proof cases in the hardware store in the electrical sexton and even the automatic sprinkler section as well.

@ckiottest5281 2 жыл бұрын

Can I actively monitor the power faster than once every 10s? I like to send it over the home network at a 5 to 10 Htz rate. Is that configurable?

@digiblurDIY 2 жыл бұрын

You can change the configuration however you like. I even saw one guy did it with a Raspberry Pi for more processing power.

@DrDrewsAdventures 5 жыл бұрын

So can I use the 2 channel board to accurately measure my 220V appliances? Would love to see how much power my dryer and AC unit consume.

@digiblurDIY 5 жыл бұрын

You could use those 220 channels to monitor anything you like. Keep in mind that US 220v appliances would need 2 channels to capture the entire usage. You could do the entire house with 2 channels but it wouldn't be broken down. I use the 6 channel where 2 do the entire house then the other 4 are broken down to other circuits.

@DrDrewsAdventures 5 жыл бұрын

@@digiblurDIY Yeah I considered that but unfortunately the last owners didn't run the wires to the main panel but instead ran them to a sub panel located in the garage. No idea why.

@digiblurDIY 5 жыл бұрын

You could put one on each leg then double up on power to get a rough estimate. I would compare the two different legs to see the draw differences.

@tmuxor 3 жыл бұрын

@@DrDrewsAdventures perhaps they ran a wire from main panel to a sub-panel in the garage because it makes it easier to add additional circuits in the garage on the future. That's why I'd add a sub-panel to my garage, at least.

@colemickens 4 жыл бұрын

How did you enclose this? Or how did you protect the board? Given the power involved, it seems safer to have it enclosed?

@colemickens 4 жыл бұрын

Oh, they sell an enclosure! Cool!

@jdeg2000 4 жыл бұрын

Fyi, the most AC voltage on the board is 9v. Everything else is converted to DC. Also, the case 3d files are available if you want to print your own case

@kernalbin 15 күн бұрын

I'm not sure if I'm missing something, but wanting to do this. When clamping both lives in a split 240v system and then adding them together you get the total amperage from all of the 120v breakers, but wouldn't it double count any 240v appliances? My theoretical solution to overcome this would be to measure both lives and the common. And then do something like (L1 + L2 - Com) / 2 + Com to get the total current. Am I missing something obvious and it can be simplified? I know this is an old video, but thought the people here may be able to help.

@digiblurDIY 14 күн бұрын

Is this split phase US I assume? You can pass both hots through the same clamp in opposite directions is one method to grab both with one clamp. Or you can double it up if the load is balanced.

@timhughes1690 4 жыл бұрын

What are the damn bright blue LED's on this board that totally illuminate my closet at night? I would also like the ability to turn the LED's off through software. I mean it they are annoying. They even show through the purchased 3D printed case. For now I have packed the case with some black foam I have, but I am worried it might heat up. I am using it with ESPHome. Also, is there a way to reset the totals?

@digiblurDIY 4 жыл бұрын

Is it on the board or ESP chip? Which totals?

@timhughes1690 4 жыл бұрын

@@digiblurDIY The two blue LED's in the lower left corner of the 6 channel board. The kWh total.

@jdeg2000 4 жыл бұрын

@@timhughes1690 didnt see your question earlier. The blue leds are the active power pulse. Cf1

@eliasfarms 5 жыл бұрын

Are there ESP32 boards compatible with the 6 sensor board, with an external antenna option?

@digiblurDIY 5 жыл бұрын

I haven't seen any off hand myself. Only one I can think of is the d1 mini pro but that's esp8266 and the wrong pins totally. I do recall seeing some on Ali with external antennas but they were long boards with other add ons.

@jdeg2000 5 жыл бұрын

This one will work: www.mouser.com/ProductDetail/Espressif-Systems/ESP32-DevKitC-32U?qs=%252BEew9%252B0nqrCEVvpkdH%2FG5Q%3D%3D The 32U is the one with the U.FL antenna connector. You need to purchase the antenna as well.