Adding esphome display
This commit is contained in:
Moritz Graf
@@ -0,0 +1,271 @@
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esphome:
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name: esdisplay-kitchen
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comment: "e-Paper display in the kitchen connected to Home Assistant"
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platformio_options:
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lib_deps:
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- bblanchon/ArduinoJson@7.4.2
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includes:
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- prometheus_client.h
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globals:
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- id: prometheus_connected
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type: bool
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restore_value: no
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initial_value: 'true'
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esp32:
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board: nodemcu-32s
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framework:
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type: arduino
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# Enable logging
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logger:
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# Enable Home Assistant API (auto-discovery)
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api:
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password: ""
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# Over-The-Air updates
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ota:
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platform: esphome
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wifi:
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ssid: !env_var WIFI_SSID
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password: !env_var WIFI_PASSWORD
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# Enable fallback hotspot in case wifi fails
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ap:
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ssid: "Kitchen Display Fallback"
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password: "fallbackpassword"
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captive_portal:
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# Time synchronization to get current time on display
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time:
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- platform: sntp
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id: sntp_time
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timezone: "Europe/Berlin"
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# Define local and imported sensors
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sensor:
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- platform: homeassistant
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id: ha_outdoor_temp
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entity_id: sensor.regensburg_regensburg_temperatur
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internal: true
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- platform: homeassistant
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id: ha_kitchen_temp
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entity_id: sensor.home_kuche_wandthermostat_temperature
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internal: true
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# Local template sensors scraped from Prometheus
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- platform: template
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id: local_cellar_temp
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name: "Kitchen Display Cellar Temperature Indoor"
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unit_of_measurement: "°C"
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accuracy_decimals: 1
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- platform: template
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id: local_cellar_humi
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name: "Kitchen Display Cellar Humidity Indoor"
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unit_of_measurement: "%"
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accuracy_decimals: 0
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- platform: template
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id: local_cellar_dp
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name: "Kitchen Display Cellar Dewpoint Indoor"
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unit_of_measurement: "°C"
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accuracy_decimals: 1
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- platform: template
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id: local_cellar_out_temp
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name: "Kitchen Display Cellar Temperature Outdoor"
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unit_of_measurement: "°C"
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accuracy_decimals: 1
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- platform: template
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id: local_cellar_out_humi
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name: "Kitchen Display Cellar Humidity Outdoor"
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unit_of_measurement: "%"
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accuracy_decimals: 0
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- platform: template
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id: local_cellar_out_dp
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name: "Kitchen Display Cellar Dewpoint Outdoor"
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unit_of_measurement: "°C"
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accuracy_decimals: 1
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- platform: template
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id: local_fan_status
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name: "Kitchen Display Cellar Fan Status"
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accuracy_decimals: 0
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- platform: template
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id: local_mold_critical
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name: "Kitchen Display Cellar Mold Critical"
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accuracy_decimals: 0
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- platform: template
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id: local_fan_would_activate
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name: "Kitchen Display Cellar Fan Activation Criteria"
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accuracy_decimals: 0
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- platform: template
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id: local_mold_threshold
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name: "Kitchen Display Cellar Mold Threshold"
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unit_of_measurement: "%"
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accuracy_decimals: 0
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- platform: template
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id: local_shelly_online
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name: "Kitchen Display Cellar Shelly Online"
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accuracy_decimals: 0
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# Interval to scrape metrics from Prometheus every 30 seconds
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interval:
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- interval: 30s
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then:
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- lambda: |-
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fetch_prometheus();
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text_sensor:
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- platform: homeassistant
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id: ha_message
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entity_id: input_text.epaper_message
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internal: true
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- platform: wifi_info
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ip_address:
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name: "IP Address"
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id: wifi_ip
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# Font configuration (uses Google Fonts Roboto)
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font:
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- file: "gfonts://Roboto"
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id: font_title
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size: 16
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- file: "gfonts://Roboto"
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id: font_body
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size: 12
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# SPI bus configuration for e-Paper display
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spi:
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clk_pin: GPIO18
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mosi_pin: GPIO23
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display:
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- platform: waveshare_epaper
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id: epaper_display
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model: 2.13inv3
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cs_pin: GPIO5
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dc_pin: GPIO17
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reset_pin: GPIO16
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busy_pin: GPIO4
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rotation: 90
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update_interval: 60s
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lambda: |-
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// Fill background with white
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it.fill(COLOR_OFF);
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// Check if Prometheus is reachable
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if (!id(prometheus_connected)) {
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it.print(125, 20, id(font_title), TextAlign::CENTER, "PROMETHEUS ERROR");
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it.print(125, 55, id(font_body), TextAlign::CENTER, "Cannot reach server");
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it.print(125, 75, id(font_body), TextAlign::CENTER, "Check network or auth");
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// Show time at the bottom if synced
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it.line(5, 96, 245, 96);
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char time_str[30];
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auto time_now = id(sntp_time).now();
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if (time_now.is_valid()) {
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it.strftime(5, 100, id(font_body), "Time: %a %H:%M", time_now);
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} else {
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it.print(5, 100, id(font_body), "Time: --:--");
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}
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return;
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}
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// --- SECTION 1: HEADER ---
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it.print(5, 2, id(font_title), "Cellar Fan (TAUPI)");
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// Time and weekday on the right
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auto time_now = id(sntp_time).now();
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if (time_now.is_valid()) {
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it.strftime(245, 2, id(font_body), TextAlign::TOP_RIGHT, "%a %H:%M", time_now);
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} else {
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it.print(245, 2, id(font_body), TextAlign::TOP_RIGHT, "Time: --:--");
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}
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// Draw header divider
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it.line(5, 18, 245, 18);
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// --- SECTION 2: CLIMATE CELLS ---
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// Vertical separator
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it.line(122, 22, 122, 82);
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// CELLAR INDOOR (Left)
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it.print(5, 22, id(font_body), "CELLAR INDOOR");
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if (!isnan(id(local_cellar_temp).state)) {
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it.printf(5, 36, id(font_body), "Temp: %.1f C", id(local_cellar_temp).state);
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} else {
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it.print(5, 36, id(font_body), "Temp: -- C");
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}
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if (!isnan(id(local_cellar_humi).state)) {
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it.printf(5, 49, id(font_body), "Humi: %.0f%%", id(local_cellar_humi).state);
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} else {
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it.print(5, 49, id(font_body), "Humi: --%%");
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}
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if (!isnan(id(local_cellar_dp).state)) {
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it.printf(5, 62, id(font_body), "Dewp: %.1f C", id(local_cellar_dp).state);
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} else {
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it.print(5, 62, id(font_body), "Dewp: -- C");
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}
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if (!isnan(id(local_mold_threshold).state)) {
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it.printf(5, 75, id(font_body), "Limit: %.0f%%", id(local_mold_threshold).state);
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} else {
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it.print(5, 75, id(font_body), "Limit: --%%");
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}
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// CELLAR OUTDOOR (Right)
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it.print(128, 22, id(font_body), "CELLAR OUTDOOR");
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if (!isnan(id(local_cellar_out_temp).state)) {
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it.printf(128, 36, id(font_body), "Temp: %.1f C", id(local_cellar_out_temp).state);
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} else {
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it.print(128, 36, id(font_body), "Temp: -- C");
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}
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if (!isnan(id(local_cellar_out_humi).state)) {
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it.printf(128, 49, id(font_body), "Humi: %.0f%%", id(local_cellar_out_humi).state);
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} else {
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it.print(128, 49, id(font_body), "Humi: --%%");
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}
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if (!isnan(id(local_cellar_out_dp).state)) {
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it.printf(128, 62, id(font_body), "Dewp: %.1f C", id(local_cellar_out_dp).state);
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} else {
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it.print(128, 62, id(font_body), "Dewp: -- C");
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}
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// --- SECTION 3: STATUS BAR (Bottom) ---
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it.line(5, 86, 245, 86);
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// Fan status
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const char* fan_state = "OFF";
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if (!isnan(id(local_fan_status).state) && id(local_fan_status).state > 0.5) {
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fan_state = "ON";
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}
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it.printf(5, 90, id(font_body), "Fan: %s", fan_state);
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// Mold status
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const char* mold_state = "SAFE";
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if (!isnan(id(local_mold_critical).state) && id(local_mold_critical).state > 0.5) {
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mold_state = "CRITICAL";
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}
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it.printf(128, 90, id(font_body), "Mold: %s", mold_state);
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// Criteria status
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const char* crit_state = "NO";
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if (!isnan(id(local_fan_would_activate).state) && id(local_fan_would_activate).state > 0.5) {
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crit_state = "YES";
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}
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it.printf(5, 104, id(font_body), "Criteria: %s", crit_state);
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// Shelly Status
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const char* shelly_state = "OFFLINE";
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if (!isnan(id(local_shelly_online).state) && id(local_shelly_online).state > 0.5) {
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shelly_state = "ONLINE";
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}
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it.printf(128, 104, id(font_body), "Shelly: %s", shelly_state);
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