Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (2023)

I've been adding more and more gadgets to my smart home lately, so of course my garage door opener had to follow. But instead of trading it in for a new device, I used a Shelly 1 and a cheap door contact sensor to make it smart for under $20!

It runs ESPHome (open source, no cloud) and integrates seamlessly with Home Assistant. I did like this.

Meet my garage door opener

This is my "dumb" garage door opener. It is manufactured by FAAC and can only be controlled with the supplied RF remotes.

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (1)My "dumb" FAAC garage door opener is about to get smart!

But don't worry, this guide should work with all brands of garage door openers (including Hörmann, Genie, LiftMaster, Chamberlain,...).

The only requirement is that the opener has an input for a wall switch. As far as I know all operators have this yes!

Goals: What I want

Before I start, let me say what I wanted to achieve by making the garage smart:

  • Being able to open the garage door with my phone so I don't have to carry a remote (or worry about forgetting it).
  • I want to have fun with automations. Get actionable notification when car arrives, auto close if left open...
  • Add it to your home security system to be notified when the garage opens when it shouldn't.

But most importantly, the "smart" garage door meets my smart home guideline:

Making things "smart" should only add a new layer of control, not replace existing ones. Smart bulbs must be able to be controlled with standard wall switches. A smart garage door should still work with the remote.

This rule also encourages verywife approval factor;)

What will you need

  • WiFi (+ garage coverage)
  • Concha 1(smart switch)
  • Wired door contact magnetic sensor (any brand is ok)

Concha 1

Most garage door openers allow you to connect a wall switch to open and close your garage door. You can conveniently open your garage from the inside at the touch of a button.

So my idea was simple: to have aSonoff Miniact as a switch to open and close the garage.

However, there is a problem: the Sonoff does not have dry contacts. It forces you to plug 110/230v into the attached device and this will fry most garage door openers. Most models use a dry contact or 12-24 VDC.

Instead, I went with aConcha 1🇧🇷 It is slightly smaller than Sonoff and exposes both sides of the relay (input and output). This means you can switch any voltage (within reason) and you are not limited to 110 or 230V.

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (2)Sonoff Mini vs. Shelly 1. About the same size and functionality, except for the dry contacts.

Another bonus point for Shelly; It can work with 110-230 V (AC) OR with 12-60 V (DC). My garage door opener has a 24V output. Perfect for completely hiding Shelly!

Magnetic door contact sensor

I also bought a magnetic door sensor to detect the state of the garage door. This is completely optional, but it's an inexpensive way to tell if your garage is open or closed.

(Video) Garage Door Automation with Home Assistant and Shelly 1 Plus

I askedthis one from Amazon with a 2 meter cable, but any wired contact sensor will work:

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (3)Magnetic door contact sensor

You can also use wireless door sensors (Zigbee) and use adocument layerin Home Assistant to combine them. However, I prefer wired solutions whenever I can (no batteries to replace).

I then attached the sensor to the garage door roller (black plastic parts in the photo). As soon as the garage door is opened a few centimeters, the contact is interrupted and the status can be updated.

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (4)Contact sensor attached to the "pulley" and metal frame of my garage remote control.


Connecting the Shelly to your garage door opener and contact sensor is relatively simple:

  • Ligue o Shelly com 24-60 VDC.
  • Connect the contact sensor toSOUTH-WESTand Shelly's bottom.
  • Connect the switching contact of your garage door operator to the inputyouand go outoder Shelly.

Be careful when connecting all this. Unplug the garage door opener so you don't get hurt! It would be a shame to electrocute yourself before trying ;)

Se usa DC, Shelly'seuwill be the negative wire, and thenorteit becomes positive. This is the exact opposite of AC wiring, so make sure you don't confuse the two.

The contact sensor still needs to be connectedSOUTH-WEST, but the other end should now be connected toeu, which is Shelly's negative lead when using DC.

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (5)Connect Shelly to DC power. Attention: L is now negative while N is positive.

Attention: You can operate Shelly with 110-230 V, but not with this contact sensor. Shelly applies mains voltageSOUTH-WESTinput and the sensor is not designed for this voltage! So stick to DC or buy a proper contact breaker.

Custom firmware: ESPHome

Next: Flashing a custom firmware on Shelly.

I used ESPHome for my light switches (including Shelly's) and thought I'd do the same here. (I won't go into how to flash Shelly as there are lots of tutorials).

Why do I like ESPHome so much?

  • it's open source
  • You can configure your devices with YAML and track changes with Git (I save mine with my Home Assistant configuration).
  • There is an excellent ESPHome plugin for Home Assistant that allows you to upload changes directly to devices.
  • Seamlessly integrates with Home Assistant. No need for MQTT (sorry Tasmota).
  • You can write small automations that run autonomously on the device itself.

Then it's time to configure the YAML! There are three important things we need to configure:

  • The relay on Shelly 1 so we can turn it on and off to operate the garage door.
  • The contact sensor connected to theSOUTH-WESTShelly's input. We will use this to determine the condition of the garage door.
  • The "homepage" showing the Home Assistant. This is your garage door!

Use: this is not a complete getting started guide. If you are not familiar with ESPHome or have trouble following these steps, please review them.Introduction section of your documentation.

Let's start with the relay on Shelly. we need to create aChangeand tell ESPHome which GPIO pin the relay is connected to. I marked it asinternalbecause I don't need relay status in Home Assistant:

(Video) Smart Garage Door Opener | Shelly 1 & Home Assistant

- platform:gpio
Name: "Garage Railings"
I would like to:retransmission
internal: real

Next: the contact sensor. For that I use asensor_binarythis is what shelly looks likeSOUTH-WESTInput (connected to GPIO5). Again, this is ainternalComponents.

i added thosereversingI filtered why my contact sensor returns false when the garage is open and I think this is a bit counterintuitive. But that's not mandatory, just keep that in mind for the next steps ;)

- platform:gpio
Name: "Garage door with contact sensor"
I would like to:contact sensor
internal: real
- reversing:
# Eliminate touch sensor debounce to avoid quick on/off/on events
- late_on_off:500ms

With these two components, we can now do this.Main pageComponent to which the Home Assistant is exposed.

To send the correct port status, we need to implement a simplelambdaOccupation. mine is coming backCOVER_OPENwhen the contact sensor isreal(remember I reversed it) and if not, it returnsCOVER_CLOSED.

To operate the garage door, I setopen_actionyclose_actionto turn on the relay briefly (0.5 seconds). This is what my garage door opener needs to open or close. ONEstop_actionit was not implemented because my opener has a built-in security system.

Main page:
- platform:model
device class:Garage
Name: "garage door"
I would like to:voc_template
lambda: |-
if (id(contact_sensor).state){
devolver COVER_OPEN;
- call.call_:retransmission
- delay:0.5 seconds
- interruptor.turn_off:retransmission
- call.call_:retransmission
- delay:0.5 seconds
- interruptor.turn_off:retransmission

Here is the complete ESPHome setup for my garage, including things like stove type, Wi-Fi settings, Home Assistant API,...

friendly name:Garage


# The door contact sensor connected to the SW
# Shelly 1. Not exposed to HA, used instead to set the
# Status from layer.
- platform:gpio
Name: "Garage door with contact sensor"
I would like to:contact sensor
internal: real
- reversing:
# Eliminate touch sensor debounce to avoid quick on/off/on events
- late_on_off:500ms

# The relay on Shelly 1 that gives the boost
# the garage door opener (not exposed HA)
- platform:gpio
Name: "Garage Railings"
I would like to:retransmission
internal: real

# This will create the actual garage door in HA. The state is based
# on the contact sensor. Ease of opening/closing the garage door
# turns the relay on/off with a delay of 0.5 seconds.
Main page:
- platform:model
device class:Garage
Name: "garage door"
I would like to:voc_template
lambda: |-
if (id(contact_sensor).state){
devolver COVER_OPEN;
- call.call_:retransmission
- delay:0.5 seconds
- interruptor.turn_off:retransmission
- call.call_:retransmission
- delay:0.5 seconds
- interruptor.turn_off:retransmission

ssid: !Secretwifi_iot_ssid
clave: !Secretwifi_iot_password

# Enable alternate access point (captive portal) in case WiFi connection fails
ssid:$friendly_name Alternative Access Point
clave: !Secretesphome_fallback_ap_password

captive portal:

# enable logging

# Enable the Startup Helper API
clave: !Secretesphome_api_password

clave: !Secretesphome_api_password

# Send IP address to HA
- platform:info_wifi
IP address:
Name:IP address $friendly_name

(Video) How to make your Garage Door Smarter with Home Assistant and ESPHome !

# Send WiFi signal strength and uptime to HA
- platform:wi-fi_signal
Name:Força WiFi $friendly_name
update interval:60er
- platform:uptime
Name:$friendly_name "Availability"

install correctly

It's time to install everything correctly. To secure the door contact sensor cable, I 3D printed some clamp anchors. Thanks,LoboCNC for posting your design on Thingiverse!

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (6)3D printed cable tie anchors for cable management

I glued them to the aluminum frame of the garage door and tied the sensor wire to it:

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (7)Secure the sensor cable (I don't want it blocking my garage door)

You can see that the cable enters through the top of the garage doorknob (this opening already existed for other peripherals). Then I removed the bottom cover and glued Shelly 1 in its place:

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (8)Shelly 1 on my garage remote. Fixed with tape.

The Shelly connects to the garage door opener logic board to toggle state (and also receives 24V power):

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (9)Shelly connected to garage door opener logic board

Replace the lid and everything is invisible. Legal and Clean:

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (10)Outside, everything remains the same. It looks like a "dumb" garage door opener.

house assistant

With the ESPHome setup complete, it's time to integrate everything into the Home Assistant.

Fortunately, ESPHome devices are automatically detected, so no manual configuration is required. Cold!

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (11)ESPHome devices are automatically recognized by Home Assistant

To beMain pagethat we set up in ESPHome is also automatically suspended from Home Assistant. Here is my garage door in Lovelace:

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (12)Garage Door Controls in Home Assistant

Thanks to the contact sensor, the Home Assistant knows exactly whether the garage door is open or closed, and the arrows reflect this. closed garage? The up arrow is enabled. open garage? The down arrow is enabled.

(Video) DIY Smart Garage Opener LOCAL Shelly Plus 1 (Bluetooth Bonus)

My default ESPHome setup also sends additional data to Home Assistant: Shelly's uptime, her IP address, and WiFi signal strength. I don't use them often, but they can help diagnose issues when they arise (poor Wi-Fi connection? Does Shelly restart frequently? etc.)

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (13)Additional entities that can help detect/debug issues

Examples of Automation

Once these entities are in Home Assistant, you can start automating!

We always keep the garage door closed but occasionally forget to do so. The first automation I created is the one that notifies you when the garage is open for more than 5 minutes:

- I would like to:b8aa033f-800f-4d26-8f99-f533d705421f
pseudonym: "[📣] Notify if garage door was open too long"
Protocol: 5
- Service:notify.notify
title: "🚙Garage left open!"
message: “The garage door has been open for 5 minutes. Are you closing?

actionable notifications

As I said at the beginning: I no longer want to carry the garage remote with me. So I created an automation that sends me an actionable notification when I get home during the week. Tap on it and the garage will open without needing to call Home Assistant.

You can read more about setting up actionable notifications on the Home Assistant Companion Apps website:

Here is the automation that sends the actionable notification:

- I would like to:082bf626-021e-4e05-8a9e-c36a94486bc5
pseudonym: "[📣] Tell Xavier to open the garage door during the week"
- platform:illness
Von:not at home
one:get married
business day:
- Service:notify.iphone_mobile_application_van_xavier
title: "🏡 🔑 Welcome home to Xavier!"
message: "Would you like to open the garage?"

Please note the additional data I am submitting and theopen_garageCategory.

In meconfiguration.yamlFile Next, I created a category for this actionable notification (open_garagewith the handleOPEN_GARAGE).

I also putauthentication requiredto true, therefore FaceID/TouchID is required before the garage can be opened. Better be on the safe side!

- Name:open underground parking
identifier: 'open_garage'
- identifier: 'GARAGE_OPEN'
title: 'Open garage'
activation mode: 'Background'
authentication required: real #Erfordert FaceID/TouchID
destructive: INCORRECT
behavior: 'Originally'

When the user clicks on "Open Garage", an event is created in Home Assistant. It is then used by another operator to open the garage and close it after about a minute. So I have enough time to park my bike and go home:

- I would like to:6c18050e-baby5-455f-bd52-4a1d5ad50cbd
pseudonym: '[📣📲] Callback notification to open the garage'
event type:ios.notification_action_fired
action name:OPEN_GARAGE
- Service:capa.open_cover
Data: {}
- delay: 00:01:00
- Service:capa.close_cover
Data: {}

This is how it looks on my phone:

Make your garage door opener smart: Shelly 1, ESPHome and Home Assistant (14)Actionable notification on iOS

automate the lights

Here's another useful automation: when the garage door opens (and it's dark outside), it turns on the lights. Then turn them off again 30 seconds after the garage closes.

These two actions are automated with a single automation:

- I would like to:79d7fa44-a2bc-4856-ba6d-f42a58fe6080
pseudonym: '[💡] Garage light on when door opens/closes'
- platform:illness
seconds: 2
- platform:illness
seconds: 30 # Turn off when the garage is closed for 30 seconds
- Illness:illness
identity:I am. am
- service_template: >-
{% if trigger.to_state.state == "ofensivo" %}light.turn on_{% will end will %}
{% if trigger.to_state.state == "cerrado" %}light.turn_off{% will end will %}
Data: {}

It's things like this that make me appreciate Home Assistant. No more running for the light switch in the dark ;)

Conclusion and next steps

I'm super happy with the result. Our "smart" garage door was very reliable, so much so that I didn't even bother taking the remote with me! It also gives me peace of mind to be able to easily check the status of the garage and know that it is connected to the security system.

(Video) Automate your Garage Door! The PERFECT First DIY Smart Home Project.

As a next step, I'd like to automatically open the garage when we drive through it (as opposed to notification). I'm thinking of using a bluetooth headlight in my car. Any idea?

Happy hacked house!


Can I convert my garage door opener to Wi-Fi? ›

You'll need to connect a Wi-Fi controller to your current garage door opener. Adding Wi-Fi to your existing garage door opener is easier than you may think. With just a few simple steps you can connect your garage door to your internet connection and operate your opener from your mobile device with ease.

Can you make an existing garage door opener smart? ›

Is it possible to make an older model garage door opener smart? Absolutely! Most older model garage door openers have an option to add a wall control panel / push button which you can use to open or close the garage door. Smart garage door openers can be wired to these push button terminals.

Can you program a garage door opener yourself? ›

You can easily program the opener yourself or, if you're having trouble, you can reach out to a professional.

What is the difference between Shelly 1 and Shelly 1L? ›

A Shelly 1 can be used to switch on or off an appliance with a maximum load of 16A. The Shelly 1 can be used to control a light, however if you need to control a light where you have no-neutral wiring then you will need a Shelly 1L instead.

What is the difference between Shelly 1 and Shelly 1pm? ›

Q2: What is the difference between Shelly1 and Shelly1PM? Shelly 1 PM has power measurement, but on the other side, Shelly 1 has external pins for flashing and clean contacts. Shelly1PM does not have clean contacts (also called dry contacts). Also Shelly1PM has temperature and overload protections.

How do I know if my garage door opener is Wi-Fi capable? ›

How to Determine if Your Garage Door Opener is Wi-Fi Compatible
  1. None Required.
  2. Optional Upgrade if your garage door opener has the letters "MC" at the end of the model number (located on the garage door opener) to the internet:
  3. myQ Home Bridge: MYQ-G0303-SP. For Apple® HomeKit compatibility and Siri® voice control.

Can I clone my garage door opener? ›

In most cases, you can use your existing garage door opener remote to program a different remote, but there is a catch. Standard garage door remotes don't have that functionality. They can not read and clone the signal from a pre-programmed remote control and use that signal to operate your opener.

How do you program a garage door opener without a code? ›

To reset the garage door code, you must wipe the current data off the memory chip. Hold it down for a few seconds as you locate the learn button. If there's a light near the button, keep pressing it until the light turns off. This erases the stored pin codes and information about paired devices, like remote controls.

How much does it cost to reprogram a garage door opener? ›

If your circuit board needs replacement, garage door service providers typically charge $100 for the circuit board and reprogramming services needed for your controls.

How do I clone my garage door remote? ›

Place your Original Remote next to Copy Remote. Press and hold down the button on Original Remote that you wish to program onto the corresponding button on Copy Remote, and then press and hold down the corresponding button on Copy Remote. Hold both buttons down until you see LED on Copy Remote flashes quickly.

Can remote garage door openers be hacked? ›

Rolling codes change the garage door opener code every time you use the remote control. While this can make finding a correct guess difficult, these systems can be hacked. Hackers can jam the signal with radios, so the system does not roll over to the next code.

Can you automate an existing garage door? ›

Automating an Up and Over garage door

Canopy doors are not designed to be motorised, but if the door is modern and/or runs smoothly, it can be motorised with the addition of a bow-arm device, although this will increase the cost. The bow arm conversion kit is fitted against the door and attached to the operator boom.

Can I sync my phone with my garage door opener? ›

In recent years, several companies have rolled out receivers which can be wired into your existing garage door opener, allowing them to be paired with an app installed on your phone. Just open the app, tap the button, and your garage door will open as normal, but without the hassle of needing a dedicated device.

Can Shelly work without internet? ›

It is possible to control Shelly devices without internet, but you need to configure own SNTP server, from where they can obtain information about the time.

Is Shelly better than Sonoff? ›

The Shelly1 is more expensive, because the relay circuit is detached, so you can power it with one voltage (say 24V DC) and control another (say 220V AC). The Sonoff is inline, which simplifies things, but everything needs to run on the same voltage. I'd go with Shelly devices myself.

Does Shelly need a hub? ›

Why choose Shelly? No HUB required! Connect Shelly to your existing normal home Wi-Fi network. No Cloud required!

Why is Shelly bypassed? ›

A Shelly Bypass is needed when the load being controlled by the Shelly is less than 10 or 20 Watts: Shelly 1L requires a bypass if the load is less than 20W. Shelly Dimmer 2 requires a bypass if the load is less than 10W.

What gender is Shelly? ›

As with many other names (Courtney, Ashley, etc.), Shelley is today a name given almost exclusively to girls after historically being male. It is commonly used as a nickname for Michelle (and formerly as a variant of Shirley).

How many switches can a Shelly control? ›

Shelly 1L has one relay but supports two switches. So it is possible to put a 1L behind the switch, a 1 at the rose, connect the two gangs to the 1L and use the first switch to control one light using the relay and the second switch that is not attache…

How much does it cost to automate a garage door? ›

Garage Door Opener Costs

If you have a pro install a garage door opener, expect to pay between $220 and $550. The opener itself will typically run between $150 and $500 with another $65 to $85 an hour for labor, which can run between two to six hours.

Can the frequency of a garage door opener be changed? ›

Fundamentally, you cannot change the frequency of your garage door opener (there is a workaround). However, it is possible to reset the garage door opener's memory and change the signature for any wireless devices, including remote controls, keypads and cars.

Can you use myQ without subscription? ›

Are my videos still being recorded even if I do not subscribe? No video is recorded without a myQ Video Storage Plan.

Can someone else have the same garage door frequency? ›

The signal transmitted to open your garage door travels on a specific frequency and uses a specific code to program. There's a small chance a neighbor may be using the same garage door opener frequency or code. This problem only occurs in older garage door openers that were programmed using positioning clips.

What frequency do garage door remotes use? ›

Garage door opener remotes work on radio frequency waves, typically from ranges of 300MHz to 390MHz. All current Genie garage door openers specifically work on 315MHz & 390MHz (dual frequency), to help reduce the likeliness of experiencing radio frequency interference.

What does Wi-Fi on a garage door opener do? ›

At its most basic level, a smart garage door opener utilizes your wireless internet connection and sensors on your garage door rails and controller to transmit information to an associated app that allows you to remotely see if your garage door is open, shut, somewhere between, when it was last opened, and more.

Why do thieves steal garage door opener? ›

Stealing garage door openers are one common method implemented by burglars desiring easy access to homes. Once an individual has found your garage door opener, they can usually find your home address or location by finding your car registration — revealing all your personal information.

What happens if someone steals your garage door opener? ›

If you suspect your opener remote was stolen, contact the police. Check if anything else was stolen from your house or car and report any missing items along with your opener remote. Once you've done this, you'll need to clear the remote from the opener's memory and purchase a replacement remote control.

How many remotes can be programmed to a garage door opener? ›

(2015-Present) Wi-Fi Garage Door Opener
Wi-Fi Garage Door OpenerLiftMaster EliteChamberlain
Remote Controls408
Keyless (Keypad) Entries41
myQ Accessories66
Internal Gateway1010

Is there a free garage door opener app? ›

Craftsman Smart Garage Door Opener App

The app is available at no cost and works together with the connectivity solutions provided by Craftsman AssureLink. This Smart Garage Door Opener App uses Wi-Fi on the Craftsman AssureLink platform to provide internet access.

How can I bypass the sensors on a garage door opener? ›

So, all you need to do is hold the wall button down ( do not press and release). You must hold the wall button all the way down until the garage door hits the floor then release. If you let go of the button before the door hits the ground the sensors will kick back in to action and the door will reverse.

Where is the learn code on a garage door opener? ›

The Learn button on your garage door opener is located above the antenna wire that hangs from the motor head, or it may also be under a light cover. The Learn button will be either green, red/orange, purple or yellow.

What is the lifespan of a garage door opener? ›

The average lifespan of a garage door opener is 10 to 15 years, and like your garage door, many factors contribute to its durability. You can keep your garage door opener functioning for a long time with proper care and attention, just like you should give to your garage door.

What does Lowes charge to install a garage door opener? ›

How Much Does Lowe's Charge to Install a Garage Door? Lowe's charges between $199 and $599 to fit both a new garage door and the opener. This figure is for labor fees only; the door would cost extra. Fitting an opener to an existing door is less expensive than having a new door installed.

How much does Home Depot charge to install a garage door opener? ›

Garage door opener installation is available starting at $118, including removal and haul away of old openers and other materials. Request service online, in-store or by phone and a licensed, professional installer will contact you to schedule the installation date.

Is there such thing as a universal garage remote? ›

Universal garage door remote controls are available that you can program for use with most brands of newer garage door openers. You still need to know the manufacturer to make sure the remote works for your garage door and to program the remote.

Is there a universal garage door remote? ›

If you're looking specifically for a universal remote for your garage door opener, there are two models you need to look for. First is Liftmaster 893 MAX. It will work with any Chamberlain, Liftmaster, Craftsman, Sears, Steel-Craft opener. The second is Liftmaster 380UT, which is ideal for any other brand.

Does Shelly 1 need neutral? ›

Most smart light switches cannot be installed without a neutral supply because they cannot be sufficiently powered. However, the Shelly 1L and Shelly Dimmer 2 can be installed behind a light switch without neutral wiring.

How do I connect my Skylink garage door opener? ›

Plug the receiver into an electrical outlet inside the garage. The red light on the receiver should be on after being plugged into an electrical outlet. Re-connect the power cord of the Garage Door Opener. The Left button on the transmitter has been programmed to operate the receiver.

What wiring is needed for a garage door opener? ›

We recommend 18-24 gauge wiring for the sensors and wall console. The wire is 24 gauge.

Is there a universal garage door opener app? ›

BTmate Garage Mate App (Android/iOS)

If you own multiple garage doors and they are all handled by different garage door openers, Garage Mate might just be the best solution you can find in any app store.

Can I pair my phone as a garage door opener? ›

Absolutely, you can use your smartphone as a garage door opener. If you already have a garage door opener, there's no point in buying a new system. All you need to do is to retrofit it with a smart garage door opener. But if you don't have a garage door opener, you can consider buying a smart garage door system.

Does Shelly work without Internet? ›

It is possible to control Shelly devices without internet, but you need to configure own SNTP server, from where they can obtain information about the time.

What happens if you don't use a neutral? ›

Without the neutral wire, all sorts of instabilities occur in the system like unstable voltages, unexpected currents and even dangers of electric shock.


1. I Made a Smart Garage Door Opener - Home Assistant
(Rob Jon)
2. Controlling my Garage Door with Home Assistant
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3. Shelly Plus 1 ESP32 Smart Relay | TASMOTA and Home Assistant
4. Add Wifi Control to your Garage Opener using Sonoff SV, ESPhome, and Home Assistant
5. Easy and affordable automated garden lights with Home Assistant! Part 1
(Simon Says)
6. Crea tu propio Shelly 1 con ESPHome BARATO 🔥 ... y ¡MEJORADO! 😃
(Un loco y su tecnología)
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