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mcu-lvgl-4848s040: add Guition ESP32-S3-4848S040 initial config
- mipi_rgb GUITION-4848S040 model, ST7701S init over SPI (48/47) - GT911 touch mirrored like the image, backlight on GPIO38 - clock and status pages (status until Home Assistant connects), same navigation bar as the other LVGL displays - IPv6-only network
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---
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substitutions:
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device: lvgl-4848s040
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name: LVGL 4848S040
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area: DEV
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comment: "${area} | Guition ESP32-S3-4848S040"
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esphome:
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name: mcu-${device}
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friendly_name: ${name}
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area: ${area}
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comment: ${comment}
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on_boot:
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- priority: -100
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then:
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- lvgl.page.show: status_page
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esp32:
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variant: esp32s3
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flash_size: 16MB
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framework:
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type: esp-idf
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# PSRAM bandwidth for the RGB panel (not set by ESPHome); without it the
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# image shifts during flash/WiFi activity
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sdkconfig_options:
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CONFIG_ESP32S3_DATA_CACHE_64KB: y
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CONFIG_SPIRAM_FETCH_INSTRUCTIONS: y
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CONFIG_SPIRAM_RODATA: y
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psram:
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mode: octal
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speed: 80MHz
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packages:
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common: !include common/common.yaml
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ipv6_only: !include common/ipv6_only.yaml
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# PINOUTS: Guition ESP32-S3-4848S040, 4", 480x480, ST7701S, capacitive
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## Display (RGB, pins in the mipi_rgb model)
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# CS 39
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# SCK 48 ST7701S init (3-wire SPI)
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# SDA 47
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# DE 18
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# HSYNC 16
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# VSYNC 17
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# PCLK 21
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# BL 38
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## Capacitive Touch (GT911)
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# TP_SDA 19
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# TP_SCL 45
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## Relays (86 box variant)
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# RELAY1 40
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# RELAY2 2
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# RELAY3 1
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api:
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# status page until Home Assistant connects (log viewers don't subscribe to states)
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on_client_connected:
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- delay: 2s
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- if:
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condition:
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api.connected:
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state_subscription_only: true
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then:
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- lvgl.page.show: main_page
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on_client_disconnected:
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- if:
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condition:
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not:
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api.connected:
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state_subscription_only: true
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then:
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- lvgl.page.show: status_page
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i2c:
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- id: i2c_main
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sda: 19
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scl: 45
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scan: true
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spi:
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- id: lcd_spi
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clk_pin: 48
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mosi_pin: 47
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display:
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- platform: mipi_rgb
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model: GUITION-4848S040
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id: main_display
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spi_id: lcd_spi
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update_interval: never
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auto_clear_enabled: false
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touchscreen:
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- platform: gt911
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id: main_touch
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display: main_display
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i2c_id: i2c_main
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# the mipi_rgb model mirrors the image on both axes, touch has to follow
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transform:
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mirror_x: true
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mirror_y: true
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output:
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- platform: ledc
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id: gpio_backlight_pwm
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pin: 38
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frequency: 1220
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light:
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- platform: monochromatic
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id: back_light
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name: Backlight
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output: gpio_backlight_pwm
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restore_mode: ALWAYS_ON
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script:
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- id: update_status
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then:
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- lambda: |-
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// same colors as the other status screens: ok green, waiting orange, details gray
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static const uint32_t OK = 0x4DD966, WAIT = 0xFFB300;
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auto set = [](lv_obj_t *label, const std::string &text, uint32_t color) {
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lv_label_set_text(label, text.c_str());
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lv_obj_set_style_text_color(label, lv_color_hex(color), LV_PART_MAIN);
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};
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const bool wifi_ok = wifi::global_wifi_component->is_connected();
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set(id(status_wifi),
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wifi_ok ? str_sprintf("WiFi: connected (%d dBm)", wifi::global_wifi_component->wifi_rssi())
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: std::string("WiFi: connecting..."),
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wifi_ok ? OK : WAIT);
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// IPv6 first (skip link-local), then IPv4
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std::string ips;
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if (wifi_ok) {
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char buf[network::IP_ADDRESS_BUFFER_SIZE];
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for (bool v6 : {true, false}) {
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for (auto &ip : wifi::global_wifi_component->get_ip_addresses()) {
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if (!ip.is_set() || ip.is_ip6() != v6)
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continue;
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ip.str_to(buf);
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if (v6 && strncmp(buf, "fe80", 4) == 0)
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continue;
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if (!ips.empty())
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ips += "\n";
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ips += buf;
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}
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}
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}
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lv_label_set_text(id(status_ips), ips.c_str());
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if (ips.empty())
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lv_obj_add_flag(id(status_ips), LV_OBJ_FLAG_HIDDEN);
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else
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lv_obj_remove_flag(id(status_ips), LV_OBJ_FLAG_HIDDEN);
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const bool api_ok = api::global_api_server->is_connected();
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set(id(status_ha), api_ok ? "Home Assistant: connected" : "Home Assistant: waiting...",
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api_ok ? OK : WAIT);
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const uint32_t up = millis() / 1000;
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lv_label_set_text(id(status_footer),
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str_sprintf("ESPHome %s · up %ud %02u:%02u:%02u", ESPHOME_VERSION, up / 86400,
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(up / 3600) % 24, (up / 60) % 60, up % 60).c_str());
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interval:
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- interval: 1s
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then:
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- lvgl.label.update:
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id: clock_label
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text: !lambda |-
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auto now = id(ha_time).now();
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if (!now.is_valid())
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return std::string("--:--");
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return now.strftime("%H:%M");
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- if:
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condition:
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lvgl.page.is_showing: status_page
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then:
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- script.execute: update_status
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image:
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- platform: file
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file: assets/images/made-for-esphome-white-on-black.svg
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id: esphome_logo
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resize: 320x95
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type: RGB565
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transparency: alpha_channel
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font:
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- file: "gfonts://Roboto@500"
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id: font_clock
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size: 150
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glyphs: "0123456789:-"
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- file: "gfonts://Roboto"
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id: font_title
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size: 32
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- file: "gfonts://Roboto"
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id: font_status
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size: 20
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glyphs: "·"
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glyphsets: [GF_Latin_Kernel]
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lvgl:
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log_level: WARN
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color_depth: 16
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bg_color: 0x000000
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text_color: 0xFFFFFF
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theme:
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buttonmatrix:
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bg_opa: TRANSP
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border_width: 0
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items:
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bg_color: 0x2B2F36
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text_color: 0xFFFFFF
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radius: 12
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checked:
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bg_color: 0xE08A00
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top_layer:
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widgets:
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# same navigation bar as on mcu-lvgl-trainer
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- buttonmatrix:
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id: nav_bar
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align: bottom_mid
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width: 100%
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height: 60
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pad_all: 4
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pad_column: 6
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items:
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text_font: montserrat_28
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rows:
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- buttons:
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- id: page_prev
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text: ""
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on_press:
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then:
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lvgl.page.previous:
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- id: page_home
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text: ""
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on_press:
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then:
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lvgl.page.show: main_page
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- id: page_next
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text: ""
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on_press:
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then:
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lvgl.page.next:
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pages:
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# 1: clock
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- id: main_page
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widgets:
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- label:
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id: clock_label
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align: CENTER
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y: -30
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text_font: font_clock
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text: "--:--"
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# 2: status (shown until Home Assistant connects)
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- id: status_page
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on_load:
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- script.execute: update_status
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widgets:
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- image:
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src: esphome_logo
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align: TOP_MID
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y: 16
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- label:
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align: TOP_MID
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y: 120
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text_font: font_title
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text: "${name}"
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- obj:
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id: status_lines
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x: 24
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y: 170
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width: 440
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height: SIZE_CONTENT
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bg_opa: TRANSP
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border_width: 0
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pad_all: 0
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scrollbar_mode: "OFF"
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layout:
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type: flex
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flex_flow: column
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pad_row: 6
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widgets:
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- label:
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id: status_wifi
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text_font: font_status
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text: ""
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- label:
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id: status_ips
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text_font: font_status
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text_color: 0x8C8C8C
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pad_left: 20
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text: ""
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- label:
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id: status_ha
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text_font: font_status
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text: ""
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- label:
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id: status_footer
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text_font: font_status
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text_color: 0x8C8C8C
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text: ""
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