Thanks a lot, very helpful! In the meanwhile, I am actually considering to use a fully-fledged three-phase power meter (like this one) instead of one or multiple Shellies 🤔.
I have four Iammeter 3080T three phase meters installed for 8 months now. All working well and seem to be accurate. Cloud app is nice and can be used with Home Assistant.
The Shelly 3EM will show you your consumption from the grid and returned energy to the grid.
To determine how much you have used you need to monitor the total solar output and subtract the returned energy from that. If it is 3 Phase you need another 3M. If single phase, you need an EM
Do you use Home Assistant?
You can start by looking at the various devices in the Shelly store and reading the product descriptions tom familiarize yourself with the hardware.
Once you have done that, look at some of the threads here and YouTube videos on implementation to get an idea of what your goals are.
When asking for help in designing or implementing something it is a good idea to state what country you are in. Also, you mentioned renewal, does that include a complete rewire?
Depending on your requirements, some of the new Shelly features permit you to be independent of the cloud, and even local wifi.
Good luck with your project.
Here are my suggestions to insure a safe, successful installation.
Have proper tools available. Especially while learning.
1. A GOOD wire stripper. Makes it easier strip proper amount and not nick conductor.
2. A Non Contact Voltage tester. These are very useful in determining which wire is supplying power safely.
3. An inexpensive Digital Multimeter. Ability to measure voltage and continuity.
4 Good screwdrivers of correct size. Especially important with the screws on Shellys
Before you put something in the wall or ceiling, connect it and configure it on your workbench, or kitchen table. That may require you to purchase some wire, switches and boxes. Doing this will increase your chances of success by 100%
F.A.I.L. - First Attempt In Learning
if you are using stranded lamp cord you can twist them, and just push in.
Things to watch out for:
1. makes sure there are no stray strands that can short out.
2. take your time routing the wires in the housing.
3. Make sure you follow the correct wiring diagram for the Shelly you are using. terminals different on Shelly 1 and Shelly 1 PM.
4. Last, and pretty important. Shelly 1 no longer provides a "dry" contact when installed in a Button.
I have a Shelly 1 installed in a Button, and I control it with a Button!.
Did you try to add it when it was still powered by USB.
One thing about all of these Iot devices.they are all not 100% interoperable. That is the "fun" of it.
The buttons do work great when using the Shelly DDD or Direct device to Device
I have configured several Shelly Button 1 devices, and I am now pretty happy with them.
Here are some steps i have taken,
1. unpackage and plug into USB power. Leave plugged in until all configuration is complete.
2. Configure from browser by connecting to shelly AP and then 192.168.33.1. This is documented with the paperwork in the box.
3. I use static IP, not DHCP reserved. Even with reserved, a device will need to renew its lease, I keep a simple spreadsheet for that. ***
4. While it is still plugged in to USB power, I do my Home Assistant configurations and build my automations.
5. I also use buttons with Shelly DDD. I set that up too.
6. Once that is set, I go ahead and unplug. I have a couple that have been working perfectly for months.
I do not have the Buttons added to the APP, since I prefer local.
*** For more information on how DHCP is supposed to work , look up RFC 2131.
As mentioned by thgoebel, the Shelly 1 or Plus 1 is a better. When lights flicker, or make noise they are telling you they are unhappy. best to put it back, and start over.
A very useful tool that can be used to determine how three way switches are wired is a Non Contact Voltage Tester.
The person that did this blog spent a great deal of time documenting US three way wiring. take your time and look at it:
Smart Three Way Switch Installation | DIY Smart Home Guy
Also, here is a picture of my switch installThree way shelly 1 Plus.jpg
1. First problem. NEVER mess with wiring that does not belong to you.
2. Install a bulb that can be dimmed in your own light fixture. Shelly has many options.
I have an EM that shows 1400 watts for a 1200 watt load that has been verified.
I think if you flash an EM with Tasmota it can be calibrated. I have not done that, but intent to try it
We have identified a defect in the driver for the PM chip on Shelly Plus 1PM - frequency of sampling can lead to aliasing artifacts and incorrect interpretation of data. With fw. 0.11 we will include a fix for this.
When will this new fw be available
Hi,
I'd like to use a momentary rocker switch where up always turns on the lights and down always turns off the lights. This would allow a Shelly relay to change the state through an automation, but when a user wants to turn on or off the lights, up or down is always standard.
Is there a switch type that people can recommend for this type of application for the US market?
Thanks!
