Have fun and win via JLCPCB E-exhibition: https://jlcpcb.com/E-exhibition
$2 for 4-Layer PCBs: https://jlcpcb.com
Previous video: https://youtu.be/RoSIzgvEGtA
Home Assistant video: https://youtu.be/IvI1RqYPO24
Power video: https://youtu.be/cxXmWZDwNEs
Facebook: https://www.facebook.com/greatscottlab
Twitter: https://twitter.com/GreatScottLab
Support me for more videos: https://www.patreon.com/GreatScott?ty=h
More project information (pictures, schematics,….) on Patreon: https://www.patreon.com/posts/esp32-power-43701117
Parts list: (affiliate links)
ESP32: https://s.click.aliexpress.com/e/_AfKZrJ
Current Transformer: https://s.click.aliexpress.com/e/_A661E9
Voltage Transformer: https://s.click.aliexpress.com/e/_Adyvfr
Resistor Kit: https://s.click.aliexpress.com/e/_dTPpXjt
Capacitor Kit: https://s.click.aliexpress.com/e/_d7dOwRz
Websites which were shown in the video:
https://learn.openenergymonitor.org/electricity-monitoring/ac-power-theory/introduction
https://github.com/Savjee/EmonLib-esp32
https://esphome.io/index.html
https://esphome.io/components/sensor/custom.html
In this project I will show you how to build an ESP32 AC power meter that can be used with your home assistant setup. That means I will firstly explain how to actually measure and calculate real and apparent power along with the power factor and then I will show you how to use the ESP32 in combination with some complementary components in order to create the power meter. Let’s get started!
Thanks to JLCPCB for sponsoring this video.
Visit https://jlcpcb.com to get professional PCBs for low prices.
Music:
2011 Lookalike by Bartlebeats
, https://i.ytimg.com/vi/PSzkaSy5lHY/hqdefault.jpg
source
I was wondering what is the phase relationship between input/output for the mains voltage sensing transformer. There may be a few degrees lag here.
I understand the safety aspect of using an isolation transformer in this project for sensing the voltage. But, for low loss, such transformer must be large and expensive. Since you know which mains wires are hot and return (connected to earth) can you simply use very large valued resistors, to form an ac voltage divider, capacitively couple the signal to a VDD/2 bias string?
I laugh when you I see the video is sponsored by JLC PCB and you build your circuit on a perf board.
Make the rf 433 MHz remote and esp32 home automations ple
I want to know if I can control my Arduino monitoring project from wherever I am in the world
Will it work with ESP8266 as well?
My brain is overload but great video GreatScott
COM29 LOL 😀
Your "Smart phone" is not your friend.
Power factor – 0.3? Something is wrong in there
Excellent video and a generous giveaway. Nice.
isnt the area underneath the instantaneous power waveform the total energy consumed? Not average power. The sum of the area divided by time is the average power. Two different but related concepts.
I never thought so careful about this problem. Thanks Scott
By creating this project, more power is consumed.
Hi,
Thanks for your project, I did exactly your steps but I get a couple of erros with compiling in Home Assistant. Does the files have been or need to be updated since you made the video?
Amazing. I want one. Could you please share the schematics for the auxiliary components?
We need to get this man to 2 Million
You should add a money had to pay by you for electricity , it will be shown in your home assistant
you can show a summary in video of how much all components cost that you need
Thank you. I will cehck on the emon code. but do you know if i can connect multiple current transformers and use a few more pins on the esp32. will the controller be able to handle 4-5 CT coils ?
Thanks for the helpful video
Thank you for the great tutorial,
Just a quick question, I have never used my oscilloscope to measure 220v AC, what is the safest way to do it without damaging my oscilloscope? Thanks again
Hi Scott, I am a great fan of yours. I see tons of equipment like in a lab. What do you do as a job?
All the best for your efforts. You are a great teacher ???
Awesome bro…. This is from India… Vera level…. Thank you for the video…
The number of likes of this comment is the number of people that want a collab of GreatScott with ElectroBOOM
The low team ganguly shiver because pancreas regrettably subtract out a capricious mark. jaded, wiggly locket
waiting for a video on "main electricity safety essentials". What care should be taken when handling AC 230 V
Hey, I saw your face for the first time 🙂 After watching soooo many videos where I have only heard your voice. 🙂 Nice to see you 🙂
Can we make HDMI wireless video transfer for TV using Arduino and wifi module
Hi, May be a stupid question: I have got solar panels and I would like to measure the power going home from grid but eventually the one going out when solar production is greater than consumption. For that I need to identify the direction of current. Do you think this is feasable ? Thanks for advise.
Hi!
Which scope probes did you use to measure the mains voltage and the current? Or asked differently: which would you recommend? 🙂
Thanks, Hansi
sir can you please share the schematic diagram of this project?
Simply interfacing the blinking led of your smartmeter with a ldr probably will also do the job.
Great Video! Thanks a lot Scott!
Do a collab with the hacksmith