SSD1306 display on/off via switch

ESPHome
1

Hi everybody out there :slight_smile:
i’m new in ESPHome and Home Assistant though a lot to ask… about SSD1306 p.ex.
Circuit:
bme280, bh1750, ssd1306, esp8266
I can display the values on SSD1306, everything’s fine right now, just:
I read a lot, but can’t find something about switching on/off the SSD1306 via Button-Switch (here: ‘switching off’ means display.clear() ).
I want to take care of it: it only shell show the values, if i press an hold the button-switch. Leaving the button shell clear the display.
How to ?

Many thanks in advance.
Stay healthy !

So long

Here ist the yaml:

esphome:
  name: esp-8266-ip50
  friendly_name: WZ

esp8266:
  board: esp01_1m

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "blablub"

ota:
  password: "blablub"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  manual_ip:
    # Set this to the IP of the ESP
    static_ip: 192.168.178.50
    # Set this to the IP address of the router. Often ends with .1
    gateway: 192.168.178.1
    # The subnet of the network. 255.255.255.0 works for most home networks.
    subnet: 255.255.255.0
  
  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Wz Fallback Hotspot"
    password: "blablub"

i2c:
  sda: 4
  scl: 5
  scan: true
  frequency: 800kHz 
  id: bus_a

font:
  - file:
      type: gfonts
      family: Roboto
      weight: 900
    id: font2
    size: 14
  
sensor:
  - platform: bme280
    temperature:
      name: "Temperatur"
      id: wz_temperatur
      oversampling: 16x
    pressure:
      name: "Luftdruck"
      id: wz_druck
    humidity:
      name: "Luftfeuchtigkeit"
      id: wz_feuchte
    address: 0x76
    id: wz_bme280
    update_interval: 60s

  - platform: bh1750
    name: "Lichtstärke"
    id: wz_licht
    address: 0x23
    update_interval: 60s

display:
  - platform: ssd1306_i2c
    model: "SSD1306 128x64"
    id: wz_display
    # reset_pin: -1  # Display SSD1306 has no reset-pin
    address: 0x3C
    lambda: |-
      it.print(0, 0, id(font2), "TEMP:");
      it.printf(128,0, id(font2), TextAlign::TOP_RIGHT, "%.2f°C", id(wz_temperatur).state);
      it.print(0,16, id(font2), "FEUCHTE:");
      it.printf(128,16, id(font2), TextAlign::TOP_RIGHT, "%.2f%%", id(wz_feuchte).state);
      it.print(0,32, id(font2), "DRUCK:");
      it.printf(128,32, id(font2), TextAlign::TOP_RIGHT, "%.2fhpa", id(wz_druck).state);
      it.print(0,48, id(font2), "LICHT:");
      it.printf(128,48, id(font2), TextAlign::TOP_RIGHT, "%.2flux", id(wz_licht).state);
    update_interval: 1s   

captive_portal:
2

SOLVED :

binary_sensor:
  - platform: gpio 
    pin: GPIO0
    id: wz_display_schalter
    name: "WZ-Display-Schalter"

display:
  - platform: ssd1306_i2c
    model: "SSD1306 128x64"
    id: wz_display
    # reset_pin: -1  # Display SSD1306 has no reset-pin
    address: 0x3C
    lambda: |-
      if (!id(wz_display_schalter).state) {
        it.print(0, 0, id(font2), "TEMP:");
        it.printf(128,0, id(font2), TextAlign::TOP_RIGHT, "%.2f°C", id(wz_temperatur).state);
        it.print(0,16, id(font2), "FEUCHTE:");
        it.printf(128,16, id(font2), TextAlign::TOP_RIGHT, "%.2f%%", id(wz_feuchte).state);
        it.print(0,32, id(font2), "DRUCK:");
        it.printf(128,32, id(font2), TextAlign::TOP_RIGHT, "%.2fhpa", id(wz_druck).state);
        it.print(0,48, id(font2), "LICHT:");
        it.printf(128,48, id(font2), TextAlign::TOP_RIGHT, "%.2flux", id(wz_licht).state);
      }      
    update_interval: 1s