$25 DIY 'Smart' Door Locks - ElectroMagnet + Sonoff + Tasmota

Thanks Bang Good!

Home Assistant settings =

switch:
- platform: mqtt
name: Office Lock
state_topic: "stat/officelock/POWER"
command_topic: "cmnd/officelock/power"
payload_lock: "ON"
payload_unlock: "OFF"
optimistic: false
qos: 1
retain: true
- platform: mqtt
name: Shop Lock
state_topic: "stat/shoplock/POWER"
command_topic: "cmnd/shoplock/power"
payload_lock: "ON"
payload_unlock: "OFF"
optimistic: false

icon: mdi:lock
icon: mdi:lock

locks:
name: Locks
view: no
entities:

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IMPORTANT LINKS:
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Social Media:

[KaleoMgmt]

Thank you!! I have a special needs son that can get out of the front door way too fast. Got the magnetic strike plate, and installed it on the outer door (metal screen door). Installed an outlet powered by a TP-link Kasa smart switch.

We have an Alexa routine set up to turn our front room lights to 100%, turn off the switch (unlock the door), announce that the door is unlocked, wait for 10 seconds, power the switch (lock the door), announce the door is locked, then turn off the lights.

Having the smart switch allows me to unlock the door at night from outside when I get home late.

Recently set up Home Assistant (thanks again for those incredible tutorials). Now we also have NFC tags on our door frame so we can just hold our phones up to trigger the same 10 second unlock automation.

DrZzs helping parents of special needs kids get some Zzzs knowing our kids can't escape the house at night!

[michaelhenderson]

Thanks Doc. I've been putting this off but now it is time. My locks will be for bedroom doors, similar to your senario for the inside room. If someone breaks in to the house and we are in one of the bedrooms, push a button and the lock will be activated. By the time they get the door kicked in, Mr. Smith & Wesson will be waiting. That extra few seconds could be the difference between life or death. My thinking is a smart outlet to supply power. A 433mhz wall mounted button will send a signal (via Sonoff rfbridge/Tasmota) to turn on the outlet, thus locking the door. Bench testing just around the corner. Oh, and a second button hidden somewhere else (kitchen or pantry) will also operate the lock to unlock it if needed.

[ovidiu]

My wife will be mad!!!that's a good one!!I love all your content!All the best from Romania!!

[walkie]

I enjoyed the hell out of this video. Very new to all this and just clicking on anyone my searches dig up but man what a find. Love the format and great advice, thanks

[neptune]

the Magnet lock sold by other suppliers has four wires....two for power and two for "door contact"... a control circuit uses this to confirm the door is closed. This will be one big plus in your case by using the "lock closed" icon to show the door is closed which is handy when you need confirmation your house is secure (doors are In high security applications this contact is used to detect one door closed before the next door to allow one person through at a time (just another application) In the case of the garage door lock... one just needs to send a "pulse" for it to open.(add a buzzer to confirm the lock is opening when using it on a outside gate at your front once again for great videos ....

[DiveSouthFlorida]

Nice!!! I’ve been using Node Red to do the three way . This take out one point of failure!! Buying two of this switch.

[alfblack]

OMG Perfect! I've been thinking of getting a smart lock but yeh. I dont like its closed source nature and price.

[theworldruler]

I liked your video very much, i am working on barricade door locks, can you help me which RFID, Wifi chips to use for my lock?

[Wiggi]

Ur very watchable man nicely edited videos too nice pace and concise very cool stuff I want an electromagnetic lock....

[floridamancomedy]

Good video entertaining to say the least your a good speaker

[maans]

Wiring for the sonoff and the magnetic lock
How do I wire it ???

[ViciousXUSMC]

Ever measure the power draw for the electro magnet?

[Tomvandorland]

You're awesome keep the good work up!

[revtmyers]

First time I have seen the striker plate  magnetic lock used that way. Have to remember that one. Nice video.

[SauRoNZA]

Awesome video as always. I just wonder if your super glue is same as my super glue in South Africa because I would never ever use it for that application. We have something specifically called cable glue for his purpose.

[silicon]

I'm wondering if there is a zwave version of this s-on-off, might make things more easier?

[samiraa]

I need your help i have a 3D printer i need a cooling system for the board unit which turns on automatically when the enclosure reaches a certain temp i have the temp sensor can you help :) :)

[guyfawkes]

Great video. I agree with Bob Moran about a battery. In some cases, you would not need it to fail open for fire, because there are multiple exits. I'm in Florida, so occasionally you have multi-day power outages due to large storms. So maybe just using a dedicated UPS would be the way to go. Or better yet, 12v battery and solar backup.
One other thing, and perhaps its overkill, but it would be very inexpensive to do a lock at the top AND bottom. The equipment may be in the way a bit, but you would have much greater stopping force.
A keypad is really needed though, as someone else mentioned. Being outside you really want a quick way in. NFC might be easier though.

[chrisrosenkreuz]

hey can't this be done just by using a smart plug for the lock's power transformer? not to diminish what is presented here, (thanks btw) but I think it would be far easier that way

[williammiller]

Excellent video. I will try to figure out a way to apply it to sliding glass doors.