added ESPHome settings/code file

README.md

@@ -22,6 +22,117 @@ Files and how-to for making a CO2 sensor using the Sensirion SCD30 and a ESP 826
 
 ## Code
 
+
+```yml
+esphome:
+  name: esp-co2
+  friendly_name: esp-co2
+
+esp8266:
+  board: d1_mini
+
+# Enable logging
+logger:
+
+# Enable Home Assistant API
+api:
+  encryption:
+    key: "YOUR KEY"
+
+ota:
+  password: "YOUR PASSWORD"
+
+wifi:
+  ssid: !secret wifi_ssid
+  password: !secret wifi_password
+
+  # Enable fallback hotspot (captive portal) in case wifi connection fails
+  ap:
+    ssid: "Esp-Co2 Fallback Hotspot"
+    password: "SOME PASSWORD"
+
+captive_portal:
+
+time:
+  - platform: homeassistant
+    id: esptime
+
+
+i2c:
+   - id: bus_scd30
+     sda: 4
+     scl: 5
+     scan: true
+
+binary_sensor:
+  - platform: status
+    name: "CO2 - sensor1 Status"
+
+switch:
+  - platform: restart
+    name: "CO2 - sensor1 Restart"
+
+sensor:
+  - platform: scd30
+    co2:
+      id: "espco2_co2"
+      name: "espco2:CO2"
+      accuracy_decimals: 1
+    temperature:
+      id: "espco2_temp"
+      name: "espco2:Temp"
+      accuracy_decimals: 1
+    humidity:
+      id: "espco2_humidity"
+      name: "espco2:Humidity"
+      accuracy_decimals: 1
+    #temperature_offset: 1.5 °C
+    i2c_id: bus_scd30
+    address: 0x61
+    update_interval: 5s
+
+
+font:
+  - file: 'slkscr.ttf'
+    id: font1
+    size: 12
+
+  - file: 'BebasNeue-Regular.ttf'
+    id: font2
+    size: 20
+
+  - file: 'arial.ttf'
+    id: font3
+    size: 12
+
+
+display:
+  - platform: ssd1306_i2c
+    model: "SSD1306 128x64"
+    reset_pin: D0
+    address: 0x3C
+    lambda: |-
+
+      // Print time in HH:MM format
+      it.strftime(32, 0, id(font2), TextAlign::TOP_CENTER, "%H:%M", id(esptime).now());
+
+      // Print inside temperature (from homeassistant sensor)
+      if (id(espco2_temp).has_state()) {
+        it.printf(50, 30, id(font3), TextAlign::BASELINE_RIGHT , "%.1f°", id(espco2_temp).state);
+      }
+      
+      // Print inside temperature (from homeassistant sensor)
+      if (id(espco2_humidity).has_state()) {
+        it.printf(55, 30, id(font3), TextAlign::BASELINE_LEFT , "%.1f pct", id(espco2_humidity).state);
+      }
+      // Print inside temperature (from homeassistant sensor)
+      if (id(espco2_co2).has_state()) {
+        it.printf(30, 45, id(font3), TextAlign::BASELINE_LEFT , "%.1f ppm", id(espco2_co2).state);
+      }
+
+```
+
+
 ## Results
 
 <img src="images/finished_inside.jpg" title="" alt="" width="274">