Double push-type remote switch.
Recently, I'm interested in home automation and more specifically OpenHab.
As I find that some products are shamefully expensive, and that the world of electronics allows us to create them at a reduced price.
As in the past, I was interested in the world of arduino. I discovered ESP8266 modules. They are not expensive, they are not bulky, they do not consume much and can work with arduino code that I already knew. And Cherry On The Cake, they can speak the "MOSQUITTO" thanks to the MQTT protocol that OpenHab also knows.
Home Automation and more specifically for OpenHab, but other domotics project can probably also work.
Wifi Shield : ESP-01S ESP8266
Power Supply : Hi-Link HLK-PM03 AC-DC 220V to 3.3V Mini Power Supply Module
Resistor : 1 KOhm
2 Simple Push Button Normaly Open (Contact Free), One for Door Bell, One Contact when the door is open.
Arduino language Here
ESP-01 Flashing Here
MQTT "Mosquitto" Here
OpenHab items and Rules in text files. Here
Arduino-Code : Code Arduino and config file for your own wifi and mosquitto parameter
Fritzing : Download Fritzing Here to view connecting schema.
OpenHab : Items, Rules, Transform Files
Gerber : If you want to make a beautifull PCB. I'm not sponsorized but this one is cheap.
Warning ! Use a HLK-PM03 it is 3.3V and not a HLK-PM01 it is 5V or your are going to burn your ESP-01 !
