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Waveshare ESP32-S3 4.3inch Touch LCD Development Board Type B, 800×480 - ESPhome YAML example
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| esphome: | |
| name: panel | |
| friendly_name: panel | |
| platformio_options: | |
| build_flags: "-DBOARD_HAS_PSRAM" | |
| board_build.arduino.memory_type: qio_opi | |
| board_build.flash_mode: dio | |
| board_upload.maximum_ram_size: 524288 | |
| esp32: | |
| board: esp32-s3-devkitc-1 | |
| variant: esp32s3 | |
| framework: | |
| type: esp-idf | |
| sdkconfig_options: | |
| CONFIG_ESP32S3_DEFAULT_CPU_FREQ_240: y | |
| CONFIG_ESP32S3_DATA_CACHE_64KB: y | |
| CONFIG_SPIRAM_FETCH_INSTRUCTIONS: y | |
| CONFIG_SPIRAM_RODATA: y | |
| # Enable logging | |
| logger: | |
| i2c: | |
| sda: GPIO08 | |
| scl: GPIO09 | |
| # scan: True | |
| id: bus_a | |
| ch422g: | |
| - id: ch422g_hub | |
| address: 0x24 | |
| # Of the CH422's twenty-four i2c addresses, 0x24 is the correct one to use in the setup here. | |
| # Still, wow, that's a lot of i2c addresses. | |
| # Enable Home Assistant API | |
| api: | |
| encryption: | |
| key: | |
| ota: | |
| - platform: esphome | |
| password: | |
| wifi: | |
| ssid: !secret wifi_ssid | |
| password: !secret wifi_password | |
| # Enable fallback hotspot (captive portal) in case wifi connection fails | |
| ap: | |
| ssid: "Panel Fallback Hotspot" | |
| password: | |
| captive_portal: | |
| psram: | |
| mode: octal | |
| speed: 80MHz | |
| # Define display | |
| display: | |
| - platform: rpi_dpi_rgb | |
| id: my_display | |
| auto_clear_enabled: false | |
| color_order: RGB | |
| pclk_frequency: 16MHZ | |
| dimensions: | |
| width: 800 | |
| height: 480 | |
| de_pin: | |
| number: 5 | |
| hsync_pin: | |
| number: 46 | |
| ignore_strapping_warning: true | |
| vsync_pin: | |
| number: 3 | |
| ignore_strapping_warning: true | |
| pclk_pin: 7 | |
| reset_pin: | |
| ch422g: ch422g_hub | |
| number: 3 | |
| enable_pin: | |
| ch422g: ch422g_hub | |
| number: 2 | |
| hsync_back_porch: 16 | |
| hsync_front_porch: 16 | |
| hsync_pulse_width: 8 | |
| vsync_back_porch: 16 | |
| vsync_front_porch: 16 | |
| vsync_pulse_width: 8 | |
| data_pins: | |
| red: | |
| - 1 #r3 | |
| - 2 #r4 | |
| - 42 #r5 | |
| - 41 #r6 | |
| - 40 #r7 | |
| blue: | |
| - 14 #b3 | |
| - 38 #b4 | |
| - 18 #b5 | |
| - 17 #b6 | |
| - 10 #b7 | |
| green: | |
| - 39 #g2 | |
| - 0 #g3 | |
| - 45 #g4 | |
| - 48 #g5 | |
| - 47 #g6 | |
| - 21 #g7 | |
| touchscreen: | |
| platform: gt911 | |
| id: my_touch | |
| # Uncomment below if you got the janky OTHER i2c address this time | |
| #address: 0x14 | |
| # Probably fixed by adding reset_pin via CH422 though | |
| interrupt_pin: GPIO4 | |
| # DEFINE RESET PIN for consistent i2c address selection | |
| # CTP_RST is wired to IO1 of CH422G | |
| reset_pin: | |
| ch422g: ch422g_hub | |
| number: 1 | |
| mode: OUTPUT | |
| on_touch: | |
| - lambda: |- | |
| ESP_LOGI("Touch", "Touch detected at x=%d, y=%d", touch.x, touch.y); | |
| # Define fonts | |
| font: | |
| - file: "gfonts://Roboto" | |
| id: roboto24 | |
| size: 24 | |
| bpp: 4 | |
| - file: "gfonts://Roboto" | |
| id: roboto18 | |
| size: 18 | |
| bpp: 4 | |
| binary_sensor: | |
| - platform: homeassistant | |
| id: demo_light_status | |
| entity_id: light.demo | |
| internal: true | |
| on_state: | |
| then: | |
| - lambda: |- | |
| if (id(demo_light_status).state) { | |
| lv_obj_add_state(id(lv_button_demo_light), LV_STATE_CHECKED); | |
| lv_label_set_text(id(demo_light_status_label), "On"); | |
| } else { | |
| lv_obj_clear_state(id(lv_button_demo_light), LV_STATE_CHECKED); | |
| lv_label_set_text(id(demo_light_status_label), "Off"); | |
| } | |
| lvgl: | |
| displays: | |
| - my_display | |
| touchscreens: | |
| - my_touch | |
| theme: | |
| button: | |
| bg_color: 0x333333 | |
| bg_grad_dir: VER | |
| text_color: 0xFFFFFF | |
| checked: | |
| bg_color: 0xcc9900 | |
| text_color: 0x000000 | |
| bg_grad_color: 0x664d00 | |
| pressed: | |
| border_color: 0xff6600 | |
| pages: | |
| - id: main_page | |
| layout: | |
| type: flex | |
| flex_flow: column_wrap | |
| width: 100% | |
| bg_color: 0x000000 | |
| bg_opa: cover | |
| pad_all: 5 | |
| widgets: | |
| - button: | |
| checkable: true | |
| id: lv_button_demo_light | |
| width: 140 | |
| height: 150 | |
| widgets: | |
| - label: | |
| text_font: roboto24 | |
| text: "Demo\nLamp" | |
| - label: | |
| id: demo_light_status_label | |
| text: "Off" | |
| align: bottom_left | |
| on_click: | |
| then: | |
| - homeassistant.service: | |
| service: light.toggle | |
| data: | |
| entity_id: light.demo | |
| interval: | |
| - interval: 20s | |
| #startup_delay: 15s | |
| then: | |
| - lambda: |- | |
| if (id(demo_light_status).state) { | |
| lv_obj_add_state(id(lv_button_demo_light), LV_STATE_CHECKED); | |
| lv_label_set_text(id(demo_light_status_label), "On"); | |
| } else { | |
| lv_obj_clear_state(id(lv_button_demo_light), LV_STATE_CHECKED); | |
| lv_label_set_text(id(demo_light_status_label), "Off"); | |
| } | |
Just for info, I have been trying to use an ESP32-S3-Touch-LCD-4.3B in my system (not with home assistant) and I have found an issue at least with my system. I have an ESP32-S3-Touch-LCD-4.3B powered from a 12V DC supply and with a SHT31 I2C module attached to read temperature and humidity. I have found that the touch controller locks up after a while and have, so far, diagnosed this to the ch422g IO expander reacting to the touch controllers I2C reads during its polling. This ends up with the display going blank and lots of touch errors reported on its USB serial interface. It looks like the ch422g is prone to I2C glitches which are made worse with the 12V power and external I2C device attached. Maybe some 47pF caps on the SLC/SDA linesto GND (ESP32 side of M1 - NDC7002N) might help (yet to try) ?
I gave up using touch because of this problem. It would be good if you can find a solution.
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Thank you so much for this! Do you know if this setup works with https://www.waveshare.com/wiki/ESP32-S3-Touch-LCD-4B ?
Any help would be much appreciated!