My doorbell is an old one from around 1960, Friedland 752 doorbell. It is powered by an AC 230V to AVC 14V. Wanted to have the original chime with the nice sound.
Earlier I used Shelly1, but now I need a Bluetooth relay in my hallway.
This is what I want my doorbell to do:
• Limit the time between button pushes, friends can’t irritate by pressing the button several times in a row
• Notifications from Home Assistant
• Disable chime nighttime or when I want
• Ring chime from phone, if I need
• Bluetooth relay
Hardware:
• Shelly Plus UNI
• Relay
• Wago connectors
• New button, without light
The old button has light that runs on AC, hence the new button.
Shelly Plus UNI’s relay’s Max switching current is 250-300 mA
I’m not sure if Shelly’s relay is strong enough to do the job by itself.
I did not find any ESPHome or GPIO documentation for Shelly Plus UNI, so I had to do many try and error tests.
This is what I found out:
GPIO0 - Onboard LED
GPIO19 - Relay Out1
GPIO21 - Relay Out2
GPIO38 - IN1, PIN9
GPIO37 - IN2, PIN10
This is what I need, have not tried to find the other pins.
Connections:
Shelly
Pin1 to one main power
Pin2 to other main power
Pin6 to Relay VCC (DC+) and one OUT1
Pin7 to Relay Ground (DC-) and Button
Pin9 to Button
OUT1 (Second) wire to Relay Signal/IN
Relay COM to one main power
Relay NO to Chime
Chime to other main power
Code:
substitutions:
devicename: 'doorbell-plusuni'
friendly_name: 'Doorbell PlusUNI'
chime_delay: '30s' # Chime reactivation delay
button_delay: '0.2s' # Button push release delay
remote_button_delay: '0.5s' # Mobile push release delay
hide_relay1: 'true' # Hide from frontend 'true', Show in frontend 'false'
esphome:
name: ${devicename}
friendly_name: $friendly_name
esp32:
board: esp32doit-devkit-v1
framework:
type: arduino
logger:
level: DEBUG
logs:
component: ERROR
api:
encryption:
key: !secret esphome_api_key
ota:
- platform: esphome
password: !secret esphome_api_password
wifi:
ssid: !secret wifi_iot_ssid
password: !secret wifi_iot_password
ap:
ssid: "$friendly_name"
password: !secret fallback_ap_password
captive_portal:
web_server:
port: 80
auth:
username: !secret admin_user
password: !secret fallback_ap_password
globals:
- id: chime_bool
type: bool
restore_value: true
initial_value: 'true'
output:
- platform: gpio
id: relay_output_1
pin: GPIO19
switch:
- platform: output
id: relay_1
name: "Chime Relay"
output: "relay_output_1"
internal: $hide_relay1
## Remote Ring for mobile, frontend and where ever you need...
- platform: template
id: remote_button
name: "Remote Button"
turn_on_action:
- switch.turn_on: relay_1
- delay: $remote_button_delay
- switch.turn_off: relay_1
## Virtual switch for chime global variable.
- platform: template
id: chime_active
name: "Chime Active"
restore_mode: RESTORE_DEFAULT_ON
turn_on_action:
- globals.set:
id: chime_bool
value: 'true'
turn_off_action:
- globals.set:
id: chime_bool
value: 'false'
lambda: |-
return id(chime_bool);
- platform: restart
id: reboot
name: "System Reboot"
binary_sensor:
## Doorbell button push.
- platform: gpio
pin: GPIO38
id: push_button
name: "Chime Button"
internal: true
on_press:
## Only turn on the chime when it is active.
if:
condition:
- switch.is_on: chime_active
then:
- binary_sensor.template.publish:
id: button_notify
state: ON
- switch.turn_on: relay_1
- delay: $button_delay
- switch.turn_off: relay_1
- switch.turn_off: chime_active
- delay: $chime_delay
- switch.turn_on: chime_active
- binary_sensor.template.publish:
id: button_notify
state: OFF
else:
- binary_sensor.template.publish:
id: button_notify
state: ON
- delay: $chime_delay
- binary_sensor.template.publish:
id: button_notify
state: OFF
# Dummy button for notifications
- platform: template
id: button_notify
name: "Notify"
# Bluetooth proxy
bluetooth_proxy:
active: true
esp32_ble_tracker:
scan_parameters:
active: true
