Ritto smart home doorbell

Important

This project never worked reliably! Please use Solution by GreatScott

Ritto 7360 Doorbell (Wohntelefon) instructions (incl. Home Assistant lovelace integration)

Hardware

Assembly list

Amount	Part type	Properties	Labels	Remarks
1x	ESP8266 module	-	U1	Any other ESP8266 can be used too
3x	Optocoupler	4N35	U2, U3, U4
2x	Resistor	220 Ohm	R1, R2
1x	Resistor	1 kOhm	R3

Pinout

D1 GPIO05 -> Relais1 - Relais Door opener (TÖ -> GND)
D2 GPIO04 -> Relais2 - Relais Mute (LAUT -> GND)
D5 GPIO14 -> Switch3 - Button Signal (EXT +5V Ring pulse)

Diagrams

Breadboard setup

Schematics

Software

Tasmota Module Template

{"NAME":"DoorbellMcuV3","GPIO":[17,148,56,149,22,21,255,255,255,255,11,255,255],"FLAG":15,"BASE":18}

Tasmota

1. Flash TASMOTA software onto the ESP8266 module
2. Configure with (serial-)console commands
3. Connect everything together
4. Profit!

Setup

# General setup
Backlog ssid <WIFI_SSID>; password <WIFI_PASSWD>;
Backlog mqtthost <MQTT_HOST>; mqttuser <MQTT_USER>; mqttpassword <MQTT_PASSWORD>; MqttClient DoorBell; topic doorbell;
Backlog Hostname RittoDoorbell; FriendlyName DoorBell;

# Power off both relais/optocouplers after 0.5 seconds 
PulseTime1 5
PulseTime2 5

# Set a switch topic where ring is announced
SwitchTopic3 ring_sensor

# SwitchMode - falling-edge
SwitchMode3 3

# Set up module template
Template <JSON_MODULE_TEMPLATE>
# Activate template
Module 0

MQTT

The following commands can be used to control the doorbell or gets its status

Doorbell ring status is emmited like this:

cmnd/ring_sensor/POWER3 -> TOGGLE
# e.g. mosquitto_sub -t cmnd/ring_sensor/POWER3

To toggle OPEN DOOR (Türöffner) button

cmnd/doorbell/POWER1 TOGGLE
# e.g. mosquitto_pub -t cmnd/doorbell/POWER1 -m TOGGLE

To toggle LOUD (LAUT) button

cmnd/doorbell/POWER2 TOGGLE
# e.g. mosquitto_pub -t cmnd/doorbell/POWER2 -m TOGGLE

Credits

beechy.de

robinhenniges.com

nicht-trivial.de

deh0511.de

Tasmota