Introduction: Interphone ESP8266 2 Components Only < 4$

I suggest you to open your door or building door remotely with WiFi, I do that because I'm bored to get my keys out of my pocket, and it's more fun and you win some time.
If you have any questions go comment, i will reply fast as possible.

Don't forget to vote if you think it's a good improvement! I participate in the contest "Fix it". Thanks

Step 1: What You Need

For do that you need 2 components

Step 2: Connections

Connect all components together like this :

Phone charger + to 5V Wemos

Phone charger - to G Wemos (GND)

SSR - to GND

SSR + to D5 Wemos

And connect the AC signal from interphone to SSR PIN 2/1

Step 3: Have Fun

Compile and download the code to ESP8266 with USB and for future upgrade use OTA :-)

Connect to you ESP8266 with giving ip address and control the door.

I know my code can be improved ( Timers ) avoid delay on "discret" function but I will do quickly and i would like to share with you.

I think i will improve this project to add the buzzer detect and control it, to do not disturb me nightly or too earlier.

And add the door magnet detector to enable/disable email when my door is open when i'm not here.

The old phone charger is behind the light switch :-)

Note : Sorry for my english, i'm french and my english is not 100% perfect.

Step 4: Optionnal - Widget on Android

To open the door even faster you make a widget who do the http request for you.

Download the Http Request Widget APP

And configure this your ESP8266 IP replace the by your IP.

On iPhone you can add a website in your home screen, do with /discret or /opendoor URL.

If you cannot connect to your WiFi network and you have a data plan with your mobile, you can configure a redirection port on your router, but be careful to expose your esp8266 because it can't handle alot of clients, and is quite dangerous. I suggest if you have raspberry use Nginx proxy and limit and protect with auth.

Home Improvement Contest 2017

Participated in the
Home Improvement Contest 2017

Fix It Contest

Participated in the
Fix It Contest