{{tag>Code Display Hardware Nuetzliche_Links}}

====== SSD1306 OLED Display Over I²C ======

===== Spezifikation =====

|{{..:ssd1306-full.jpg?direct&415x232|ssd1306-full.jpg}}|

|screen size|1.3" (3.3 cm|
|number of pixels|128×64|
|colour depth|monochrome (white)|
|pixel pitch|0.23 x 0.23 mm|
|pixel size|0.21 x 0.21 mm|
|Brightness|100 cd/m2 at 12 V|
|Dimensions| |

|

===== Code =====

<file yaml flur-temperatur.yaml>
substitutions:
  devicename: flur-temperatur
  upper_devicename: Flur Temperatur

esphome:
  name: $devicename
  friendly_name: $upper_devicename

esp8266:
  board: d1_mini

# Enable logging
logger:

packages:
  wifi: !include packages/wifi.yaml
  mqtt: !include packages/mqtt.yaml
  ota:  !include packages/ota.yaml
  time: !include packages/time.yaml
  font: !include packages/font.yaml

# Enable Home Assistant API
api:

captive_portal:

i2c:
  sda: D2
  scl: D1
  scan: false

sensor:
  - platform: dht
    pin: D0
    temperature:
      name: "Flur Temperature"
      id: dht22_temperature
      accuracy_decimals: 1

      filters:
        - offset: -2.3
        - delta: 0.1
    humidity:
      name: "Flur Humidity"
      id: dht22_humidity
      accuracy_decimals: 1
      filters:
        - offset: -7.1
        - delta: 0.1
    update_interval: 120s

display:
  - platform: ssd1306_i2c
    model: "SSD1306 128x64"
    address: 0x3C
    lambda: |-
      // Titel
      it.printf(64, 0, id(f_top), TextAlign::TOP_CENTER, "DHT22");

      // Zeit
      it.strftime(0, 48, id(f_time), TextAlign::BASELINE_LEFT, "%H:%M", id(esptime).now());

      // Feuchtigkeit
      if (id(dht22_humidity).has_state()) {
        it.printf(128, 14, id(f_data), TextAlign::TOP_RIGHT , "%.1f %%", id(dht22_humidity).state);
      }

      // Temperatur
      if (id(dht22_temperature).has_state()) {
        it.printf(128, 32, id(f_data), TextAlign::TOP_RIGHT , "%.1f°C", id(dht22_temperature).state);
      }


</file>

===== Nützliche Links =====

  * [[https://esphome.io/components/display/ssd1306.html|ESPHome SSD1306 OLED Display]]