DIY

“Smart” doorbell (signal transmission on the smartphone)

"Умный" дверной звонок (передача сигнала на смартфон)From this short article, we’ll learn how to make a signal from the doorbell button was duplicated on the smartphone. This is quite convenient, for example, in a private home. The call sounds in the house, and you are on the site and challenge you is duplicated on the smartphone.
Tools and materials:
Module Wemos d1 mini;
-Voltage regulator;
Diode 1N4001 / 4007;
Capacitor 680 UF 50V
-Reed switch;
-3D printer;
-Development Board;
Terminals;
"Умный" дверной звонок (передача сигнала на смартфон)Step one: scheme
Doorbell is powered by a 21V AC. To power the Wemos need 5V DC. The wizard installs the diode for rectification, a capacitor for smoothing and the regulator to lower the voltage. Next, 5V comes to food and Wemos, through reed switch contact D5.
The whole scheme of the master mounts on the Board.
"Умный" дверной звонок (передача сигнала на смартфон)Step two: the body
The housing for the device master printed on 3D-printer.
WEMOS_D1_MINI_BUMPER_MOUNT.stl
"Умный" дверной звонок (передача сигнала на смартфон)Step three: software
Next you need to connect Wemos to the laptop to download Tasmota. Tasmota is an alternative firmware for devices based on ESP8266. Connected the module to a Wi-Fi network. Console updated all settings.
tasmota_command_line.txt
"Умный" дверной звонок (передача сигнала на смартфон)Fourth step: Assembly code
Then master pulled the plug and hooked up the device to call. Then opened the configuration file and added a new sensor MQTT, saved and restarted. Code below.
home_assistant_sensor_code.txt
"Умный" дверной звонок (передача сигнала на смартфон)

Source:

usamodelkina.ru

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