Shelly 1 One PM Smart Relay Switch WiFi Open Source Wireless Home Automation iOS Android Application (1 Pack) UL Certified

So far so good, 3 weeks into use with 1, 2nd week with 2 in place.Pleased with functionality after installation to date.Using them in USA standard depth exterior rated junction boxes they are a very tight fit.Highly recommend using with extra depth boxes if possible, would be great if these buggers were a smidge smaller yet.If installing into older homes, you will most likely need to replace the junction boxes to have room for the shelly pucks.Have 1 installed in a PVC exterior rated surface mount double gang box which fit with 1 switch &1 “slim” GFCI outlet, tight but managable.2nd unit is installed in a single exterior rated surface mount pot metal (aluminum alloy) box often used for pole lights, bug zappers etc.It did NOT fit behind the “slim” GFCI outlet until I ground out quite a bit of material from the box.They would be a smidge better (5th star) if they either supplied a jumper wire for simple install without secondary switch use, or added a dip switch on the case to bypass internally – not a deal breaker, just a hassle when using heavier gauge solid wire.FYI, you can juuuust squeeze in 12 ga solid wire (romex 12/2 was used in these installations) if you let up the retainer screws a smidge.Also be wary, do not overtighten teminal screws, I did almost completely strip one, luckily it had enough bite left to provide a solid connectionAdditionally, the pot metal box significantly weakens the signal reception on the network with the Shelly 1pm within 20 feet from the network router.This made it exceptionally difficult to do initial configuration.The shelly skill ties it into the Alexa device network, and working smoothly now that the units are in place with initial configuration.Of course there is a little lost in translation on the shelly interface, such as setting for default condition (it is factory set as Off, I want outlets to be On if they (shelly devices or power) fail, wording did not quite seem to mean what was desire, but figured it out.It would be great if alternate use schamatics were supplied, I’m only seeing a black and white utilization, I am sure there are more creative uses possible with the pucks.All said, I am adding more Shelly 1PM’s to our house, so use the review to help you plan for your installation.Edit 8/27/19 – Do not use this in any metal gang boxes, odds are the signal will be severely reduced.After 3 weeks I found 1 unit would not reconnect to network after power turned off (toggled breaker on/off) when all of 15 feet from the gigabit wifi router when housed in the metal box.Another unit had the same issue in brand new install with steel rather than aforemention aluminum gang box, simply could not be detected.Switched to PVC retro fit and exterior surface mount boxes, works peachy since, power interruptions are nothing but an inconvenience, 3-5 minutes after power restored, they reconnect to network and operate in whatever state you specify (I set devices to on in app)Also, 1 other note, a slip the package (have gotten multiple devices now) say there is a non metallic reset tool in the box…not gotten 1 of those yet.

Once I got my Shellys though the setup process, they have worked great–all 8 of them that I got. I would give an enthusiastic 5 stars if the setup went like it was supposed to, but that’s what I’m here to warn you about:My issue was with the setup. The process calls for using the app on your smartphone with your smartphone connected to the Shelly as a WiFi Access Point. What they don’t tell you in the instructions is that your phone or tablet still has to be connected to the Internet simultaneously to being connected to your Shelly via WiFi. You obviously don’t have Internet though the WiFi while connected to the Shelly, so unless the device has a data plan you have to get creative. No matter how hard I tried, I couldn’t get through the setup process without the simultaneous connection to the Internet.Compounding the problem is that the Shelly app absolutely refused to do the setup process on my iPhone running the new iOS13 released a couple of weeks ago. It never gave me the opportunity to enter my WiFi SSID & password, therefore the Shellys could never connect to my network. Perhaps it would have worked with iOS13 if the device FW worked better? Who knows, but that leads me to the FW issue:All 8 of my Shelly 1pm devices came with an old version of FW that barely worked even once they were set up. Luckily the old FW worked just well enough to let the Shelly app update them to the latest FW.What FINALLY worked for me: 1) Wired up the Shelly to power and a light. I would recommend doing this with a temporary setup at a table using a power strip, bulb, and light switch. If you have any difficulties with setup, you don’t want to be standing at the wall box doing all of this. 2) I used my old iPhone 7 still running iOS12. Since that phone doesn’t have a data plan, I set up reverse-tethering through my MacBook Pro to get an Internet connection via Bluetooth (google it if you need to). Again, the initial set-up process simply wouldn’t work without your phone/tablet connected to the Internet by some method other than WiFi because that is connected to the Shelly’s access point. 3) Once the Shelly is on your network, you can put your phone back on your network WiFi and let the app update the FW in your Shelly. 4) I think the Shelly Cloud also has some bugs during the initial setup process. I was able so set up most of my 8 Shellys quickly once I figured out all those workarounds, but a couple of them were still stubborn about getting set up. I just had to try over and over for a couple of hours until the Shelly Cloud made it through the process. 5) After all that, I then did the “easy” part of wiring the Shellys into my light switch boxes.Once I had my Shellys on my network and got their FW updated, they have been working reliably with my new phone running iOS13–no problems with either the app or Shelly Cloud. It’s the setup that’s buggy due to a combination of factors: a) at the time of writing the Shelly app running on iOS13 won’t do the setup process; b) whatever phone or tablet you use to do the setup has to have a data plan or be connected to the Internet via something other than WiFi; c) the version of FW shipping with the batch of my 8 Shellys barely worked; and d) Shelly Cloud was unreliable when doing the setup process.FYI, in desperation I had my friend come over with his Samsung Galaxy and that didn’t work for the setup process either. The only thing that worked for me was an iPhone running iOS12.Again, now that I’ve made it through the pain of the setup, the Shellys and Shelly Cloud have been working great. I have them integrated with Home Assistant using JSON commands, and that works reliably. I could now disconnect my devices from the cloud and Home Assistant can still control them directly.

I ordered this to be controlled my raspberry. My intent was to make a relay to control a water pump for my fish pond. Instead of opening the electrical box that exists, I decided to use the Shelly inside another electrical box that I assembled as a “wifi controlled extension cord”.I had no problems and it is working fine.

Ok, I have fallen in love with this thing…. will be ordering more the wiring is a little confusing for those who are starting off, but I put a diagram in that has helped me out alot.. i will keep adding diagram’s as i find new ways to install them… I would recommend the following:1) Use 14/2 wire it will tighten betters in the shelly… any wire gauge bigger like 12 /2 (the bigger the gauge the smaller the number i did make this system lol) will not allow you to properly tighten the wires into the Shelly.2) use Lever Nut Wire Connectors they are simpler to manage..I will make more notes as i go along for everyone.

I use these to control lights off and on. I also use one to control a water feature in my garden.These products are easy to setup and use. Setup can easily be completed in under 5 minutes after installation.Compatible with Alexa, Smarthings and home assistant.Has own shelly cloud interface which is very user friendly and easy to understand.Shows how much power is being used by the devices.Great wifi signal strength. The one in my garden is out side the house with the router in the basement. 0 connection issues.