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ESPHome LVGL samples
Raw
.gitignore
# Gitignore settings for ESPHome
# This is an example and may include too much for your use-case.
# You can modify this file to suit your needs.
/.esphome/
/secrets.yaml
/wifi.yaml
Raw
clock-package.yaml
time:
- platform: sntp
id: time_comp
on_time_sync:
then:
- script.execute: time_update
script:
- id: time_update
then:
- lvgl.indicator.line.update:
id: minute_hand
value: !lambda |-
return id(time_comp).now().minute;
- lvgl.indicator.line.update:
id: hour_hand
value: !lambda |-
auto now = id(time_comp).now();
return std::fmod(now.hour, 12) * 60 + now.minute;
- lvgl.label.update:
id: date_label
text:
format: "%s %2d"
args:
- '(new const char *[12]{"JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC"})[id(time_comp).now().month-1]'
- 'id(time_comp).now().day_of_month'
- lvgl.label.update:
id: day_label
text:
format: "%s"
args:
- '(new const char *[7]{"SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT"})[id(time_comp).now().day_of_week-1]'
font:
- file: "gfonts://Roboto"
id: roboto10
size: 10
bpp: 4
interval:
- interval: 1min
then:
- script.execute: time_update
lvgl:
style_definitions:
- id: date_style
text_font: roboto10
align: center
text_color: 0x000000
bg_opa: cover
radius: 4
pad_all: 2
widgets:
- obj: # Clock container
height: 170
width: 170
align: center
pad_all: 4
widgets:
- meter: # Gradient color arc
height: 100%
width: 100%
align: center
bg_color: 0
scales:
angle_range: 360
rotation: 255
range_from: 0
range_to: 12
ticks:
width: 35
count: 13
length: 8
indicators:
- ticks:
local: true
start_value: 0
end_value: 12
color_start: 0xFF0000
color_end: 0x0000FF
- meter:
height: 100%
width: 100%
align: center
bg_opa: TRANSP
text_color: 0xFFFFFF
scales:
- ticks:
width: 1
count: 61
length: 10
color: 0xFFFFFF
range_from: 0
range_to: 60
angle_range: 360
rotation: 270
indicators:
- line:
id: minute_hand
width: 3
color: 0xE0E0E0
r_mod: -1
-
angle_range: 330
rotation: 300
range_from: 1
range_to: 12
ticks:
width: 1
count: 12
length: 1
major:
stride: 1
width: 4
length: 8
color: 0xC0C0C0
label_gap: 6
- angle_range: 360
rotation: 270
range_from: 0
range_to: 720
indicators:
- line:
id: hour_hand
width: 4
color: 0xA0A0A0
r_mod: -20
- label:
styles: date_style
id: day_label
y: -20
- label:
id: date_label
styles: date_style
y: +20
Raw
Indicator.yaml
---
substitutions:
name: indicator
friendly_name: "Indicator LVGL"
esphome:
name: indicator
friendly_name: "${friendly_name}"
name_add_mac_suffix: false
platformio_options:
build_unflags: -Werror=all
esp32:
board: esp32-s3-devkitc-1
variant: esp32s3
framework:
type: esp-idf
# Required to get the latest RGB driver
platform_version: 6.3.2
version: 5.0.2
# Required to achieve sufficient PSRAM bandwidth
sdkconfig_options:
CONFIG_ESP32S3_DEFAULT_CPU_FREQ_240: y
CONFIG_ESP32S3_DATA_CACHE_64KB: y
CONFIG_SPIRAM_FETCH_INSTRUCTIONS: y
CONFIG_SPIRAM_RODATA: y
wifi: !include wifi.yaml
external_components:
- source: github://clydebarrow/esphome@lvgl
refresh: 10min
components: [lvgl, font, display, ft5x06]
- source: github://pr#5872
refresh: 10min
components: [st7701s]
packages:
lvgl: !include lvgl-package.yaml
psram:
mode: octal
speed: 80MHz
logger:
level: DEBUG
hardware_uart: UART0
output:
- platform: ledc
pin:
number: GPIO45
ignore_strapping_warning: true
id: ledc_gpio4
frequency: 100Hz
light:
- platform: monochromatic
output: ledc_gpio4
name: Display Backlight
id: display_backlight
restore_mode: ALWAYS_ON
spi:
- id: lcd_spi
clk_pin: 41
mosi_pin: 48
i2c:
sda: 39
scl: 40
scan: false
id: bus_a
# I/O expander. Touchscreen RESET and INTERRUPT are not used.
pca9554:
- id: p_c_a
pin_count: 16
address: 0x20
touchscreen:
- platform: ft5x06
id: ft5x06_touchscreen
transform:
mirror_x: true
mirror_y: true
on_release:
then:
- if:
condition: lvgl.is_paused
then:
- light.turn_on: display_backlight
- lvgl.resume:
- lvgl.widget.redraw:
display:
- platform: st7701s
auto_clear_enabled: false
update_interval: never
spi_mode: MODE3
color_order: RGB
dimensions:
width: 480
height: 480
invert_colors: true
transform:
mirror_x: true
mirror_y: true
cs_pin:
pca9554: p_c_a
number: 4
reset_pin:
pca9554: p_c_a
number: 5
de_pin: 18
hsync_pin: 16
vsync_pin: 17
pclk_pin: 21
# Init sequence can be one of the defaults and/or custom sequences.
init_sequence:
- 1 # select canned init sequence number 1
# Custom sequences are an array, first byte is command, the rest are data.
- [ 0xE0, 0x1F ] # Set sunlight readable enhancement
data_pins:
red:
- 4 #r1
- 3 #r2
- 2 #r3
- 1 #r4
- 0 #r5
green:
- 10 #g0
- 9 #g1
- 8 #g2
- 7 #g3
- 6 #g4
- 5 #g5
blue:
- 15 #b1
- 14 #b2
- 13 #b3
- 12 #b4
- 11 #b5
lvgl:
touchscreens: ft5x06_touchscreen
on_idle:
timeout: 120s
then:
- logger.log: "LVGL is idle"
- lvgl.pause:
- light.turn_off:
id: display_backlight
transition_length: 5s
Raw
lvgl-package.yaml
---
# A random collection of LVGL stuff.
substitutions:
light_recessed: "\U000F179B"
wall_sconce_round: "\U000F0748"
gas_burner: "\U000F1A1B"
home_icon: "\U000F02DC"
menu_left: "\U000F0A02"
menu_right: "\U000F035F"
close: "\U000F0156"
delete: "\U000F01B4"
backspace: "\U000F006E"
check: "\U000F012C"
arrow_down: "\U000F004B"
esphome:
on_boot:
then:
- light.turn_on:
id: lv_light
brightness: 100%
red: 100%
green: 0
blue: 0
#sensor:
# - platform: wifi_signal # Reports the WiFi signal strength/RSSI in dB
# name: "WiFi Signal dB"
# id: wifi_signal_db
# update_interval: 20s
# entity_category: "diagnostic"
# on_value:
# then:
# - lvgl.label.update:
# id: wifi_label
# text: !lambda |-
# static char buf[10];
# snprintf(buf, 10, "%.0fdBm", id(wifi_signal_db).get_state());
# return buf;
light:
- platform: lvgl
name: LVGL LED
id: lv_light
led: lv_led
effects:
- pulse:
name: "Slow Pulse"
# transition_length: 1s # defaults to 1s
update_interval: 2s
- strobe:
- strobe:
name: Strobe Effect With Custom Values
colors:
- state: true
brightness: 100%
red: 100%
green: 90%
blue: 0%
duration: 500ms
- state: false
duration: 250ms
- state: true
brightness: 100%
red: 0%
green: 100%
blue: 0%
duration: 500ms
number:
- platform: lvgl
widget: lv_slider
id: lvgl_slider_sensor
name: LVGL Slider
- platform: lvgl
widget: lv_arc
id: lvgl_arc_sensor
name: LVGL Arc
- platform: lvgl
widget: lv_bar
id: lvgl_bar_sensor
name: LVGL Bar
# on_value:
# then:
# - if:
# condition:
# number.in_range:
# id: lvgl_arc_sensor
# below: 50
# then:
# - lvgl.slider.update:
# id: lv_slider
# knob:
# bg_color: 0xFF0000
# - lvgl.img.update:
# id: lv_img
# src: cat_image
# else:
# - lvgl.slider.update:
# id: lv_slider
# knob:
# bg_color: 0x00FF00
# - lvgl.img.update:
# id: lv_img
# src: dog_img
binary_sensor:
- platform: lvgl
name: Pressbutton
widget: lv_page1_button
publish_initial_state: true
- platform: lvgl
name: ButtonMatrix button
widget: button_a
- platform: lvgl
id: switch_d
name: Matrix switch D
widget: button_d
on_click:
then:
- lvgl.page.previous:
animation: move_right
time: 600ms
- platform: lvgl
id: button_checker
name: LVGL button
widget: lv_button
on_state:
then:
- lvgl.checkbox.update:
id: lv_checkbox
state:
checked: !lambda return x;
text: Unchecked
- platform: lvgl
name: LVGL checkbox
widget: lv_checkbox
font:
- file: "gfonts://Roboto"
id: roboto20
size: 20
extras:
- file: 'materialdesignicons-webfont.ttf'
glyphs: [
"\U000F004B",
"\U0000f0ed",
"\U000F006E",
"\U000F012C",
"\U000F179B",
"\U000F0748",
"\U000F1A1B",
"\U000F02DC",
"\U000F0A02",
"\U000F035F",
"\U000F0156",
"\U000F0C5F",
"\U000f0084",
"\U000f0091",
]
- file: "gfonts://Roboto"
id: roboto10
size: 10
bpp: 4
extras:
- file: 'materialdesignicons-webfont.ttf'
glyphs: [
"\U000F004B",
"\U0000f0ed",
"\U000F006E",
"\U000F012C",
"\U000F179B",
"\U000F0748",
"\U000F1A1B",
"\U000F02DC",
"\U000F0A02",
"\U000F035F",
"\U000F0156",
"\U000F0C5F",
"\U000f0084",
"\U000f0091",
]
- file: "gfonts://Helvetica"
id: helv20
bpp: 2
size: 20
extras:
- file: 'materialdesignicons-webfont.ttf'
glyphs: [
"\U000F004B",
"\U0000f0ed",
"\U000F006E",
"\U000F012C",
"\U000F179B",
"\U000F0748",
"\U000F1A1B",
"\U000F02DC",
"\U000F0A02",
"\U000F035F",
"\U000F0156",
"\U000F0C5F",
"\U000f0084",
"\U000f0091",
]
- file: 'gfonts://Roboto Condensed'
id: roboto42
size: 28
bpp: 4
glyphs: 'aAbBcCxXyYzZáÁéÉíÍóÓőŐúÚűŰ'
- file: montserrat.ttf
id: mont20
glyphs: 'aAbBDcCxXyYzZáÁéÉíÍóÓőŐúÚűŰ0'
size: 20
bpp: 4
image:
- file: cat.jpg
id: cat_image
resize: 100x100
type: RGB565
- file: cat.jpg
id: disp_bg
resize: 200x200
type: RGB565
- file: dog.jpg
id: dog_img
resize: 100x100
type: RGB565
color:
- id: color_back
hex: FF0000
- id: color_blue
hex: 0000FF
select:
- platform: lvgl
widget: lv_dropdown
name: LVGL Dropdown
- platform: lvgl
widget: lv_roller
name: LVGL Roller
switch:
- platform: lvgl
name: Button switch
widget: lv_button
on_turn_on:
then:
- lvgl.widget.disable: lv_arc
- lvgl.widget.hide: button_c
on_turn_off:
then:
- lvgl.widget.show: button_c
- lvgl.widget.enable: lv_arc
- platform: lvgl
name: Matrix switch
widget: button_a
- platform: lvgl
name: Switch switch
widget: lv_switch
lvgl:
buffer_size: 100%
#default_font: roboto20
msgboxes:
- id: message_box
close_button: true
title: Messagebox
body:
text: This is a sample messagebox
bg_color: 0x808080
buttons:
- id: msgbox_close
text: close
- id: msgbox_apply
text: "Close"
on_click:
then:
- lvgl.widget.hide: message_box
on_idle:
- timeout: 10s
then:
- logger.log: idle timeout
- if:
condition:
lvgl.is_idle:
timeout: 5s
then:
- logger.log: LVGL is idle
- timeout: 15s
then:
- logger.log: idle 15s timeout
#- lvgl.pause:
#- light.turn_off:
# id: display_backlight
# transition_length: 5s
log_level: INFO
color_depth: 16
disp_bg_image: disp_bg
bg_opa: TRANSP
style_definitions:
- id: style_line
line_color: color_blue
line_width: 8
line_rounded: true
- id: date_style
text_font: roboto10
align: center
text_color: 0x000000
bg_opa: cover
radius: 4
pad_all: 2
theme:
arc:
scroll_on_focus: true
group: general
slider:
scroll_on_focus: true
group: general
btn:
text_font: roboto10
scroll_on_focus: true
group: general
border_width: 2
border_side: left
outline_pad: 6
text_color: 0x000000
checked:
text_color: 0xFF0000
pressed:
border_color: 0xFF0000
text_color: 0xFFFFFF
focused:
border_color: 0x00FF00
checkbox:
border_color: 0xC0C0C0
indicator:
text_font: montserrat_14
checked:
bg_color: 0xC0C0C0
top_layer:
text_font: helv20
widgets:
btnmatrix:
width: 100%
height: 10%
align: bottom_mid
pad_all: 5
outline_width: 0
shadow_width: 0
id: top_layer
rows:
- buttons:
- id: top_prev
text: "${menu_left}"
width: 1
on_click:
then:
lvgl.page.previous:
- id: top_home
text: "${home_icon}"
width: 1
on_click:
then:
lvgl.page.show: main_page
- id: top_next
text: "${menu_right}"
width: 1
on_click:
then:
lvgl.page.next:
page_wrap: true
pages:
- id: main_page
skip: true
layout: flex
width: 100%
bg_color: 0x808080
bg_opa: TRANSP
pad_all: 10
widgets:
- btn:
text_color: 0x000000
pressed:
border_color: color_blue
text_color: 0xFFFFFF
checkable: true
id: lv_button
pad_left: 20px
pad_top: 20px
pad_bottom: 8px
pad_right: 8px
widgets:
- img:
src: cat_image
bg_opa: TRANSP
align: bottom_right
- label:
styles: date_style
align: bottom_right
x: -20
y: -20
text: "Label text"
long_mode: dot
id: wifi_label
- checkbox:
scroll_on_focus: true
group: general
id: lv_checkbox
align: center
text: Checkbox
- switch:
id: lv_switch
- bar:
id: lv_bar
width: 50px
on_value:
then:
- logger.log:
format: "Bar value is %f"
args: [ x ]
- arc:
id: lv_arc
adjustable: true
#on_release:
#then:
#- lambda: |-
#esph_log_d("lvgl", "on_release %f", x);
on_value:
then:
- logger.log:
format: "Arc value is %f"
args: [ x ]
group: general
scroll_on_focus: true
value: 75
min_value: 1
max_value: 100
arc_color: 0xFF0000
indicator:
arc_color: 0xF000FF
pressed:
arc_color: 0xFFFF00
focused:
arc_color: 0x808080
- slider:
knob:
focused:
bg_color: 0x808080
group: general
scroll_on_focus: true
id: lv_slider
height: 30%
align: center
width: 20
min_value: 0
max_value: 50
on_value:
- logger.log:
format: "Value on_value: %.0f"
args: [ 'x' ]
on_release:
- logger.log:
format: "Value on_release: %.0f"
args: [ 'x' ]
- dropdown:
indicator:
text_font: helv20
id: lv_dropdown
options:
- First
- Second
- Third
selected_index: 2
dir: top
symbol: ${arrow_down}
dropdown_list:
bg_color: color_blue
text_color: 0x800000
- label:
text_font: helv20
outline_width: 1
outline_color: 0xFFFFFF
text: "XX \U000f0084 \U0000f0ed XX" #mdi-battery-charging
- label:
outline_width: 1
outline_color: 0xFFFFFF
text_font: montserrat_20
text: 'aAbBDcCxXyYzZáÁéÉíÍóÓőŐúÚűŰ0'
- id: page_1
layout: flex
pad_all: 10
widgets:
- obj:
width: 100%
height: 50px
bg_color: 0xFFFFFF
outline_width: 0
border_width: 2
border_color: 0x000000
- label:
height: size_content
width: 150px
long_mode: scroll_circular
text: 'Page 1 label with very long text wrapping lines'
- btn:
on_click:
then:
- logger.log: Button clicked
- lvgl.widget.show: message_box
width: size_content
id: change_btnm
widgets:
- label:
width: 100px
long_mode: scroll
text: Disable button matrix
on_press:
then:
- lvgl.widget.update:
id: b_matrix
state:
disabled: true
- lambda: |-
static const char * new_matrix[] = {"A","bbb","\n","ccc",LV_SYMBOL_PREV,"\n","E",NULL};
lv_btnmatrix_set_map(id(b_matrix)->obj, new_matrix);
text_color: 0x000000
align: center
- btn:
bg_color: 0x80FF00
width: size_content
id: lv_page1_button0
on_click:
then:
- lvgl.pause:
show_snow: true
widgets:
- label:
bg_color: 0x80ffff
width: 100px
long_mode: scroll
text: Disable button matrix
- btn:
bg_color: 0xFF80FF
width: size_content
id: lv_page1_button1
on_click:
then:
- lvgl.widget.show:
id: b_matrix
widgets:
- label:
text_font: helv20
bg_color: 0xFF80FF
width: 100px
long_mode: scroll
text: Disable button matrix
- btn:
on_click:
then:
- logger.log: Button clicked
- lvgl.widget.show: message_box
width: size_content
id: lv_page1_button
widgets:
- label:
width: 100px
long_mode: scroll
text: "Show message box"
- roller:
id: lv_roller
options:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
selected_index: 2
- led:
id: lv_led
color: 0xFF0000
brightness: 50%
on_long_press:
then:
- lvgl.page.show: main_page
- btnmatrix:
items:
checked:
bg_color: 0xFFFF00
id: b_matrix
rows:
- buttons:
- id: button_a
text: ${home_icon}
width: 2
control:
checkable: true
- id: button_b
text: B
width: 1
on_click:
then:
- lvgl.page.previous:
control:
hidden: false
- buttons:
- id: button_c
text: C
control:
checkable: false
- id: button_d
text: ${menu_left}
on_long_press:
then:
logger.log: Long pressed
on_long_press_repeat:
then:
logger.log: Long pressed repeated
- buttons:
- id: button_e
text: E
width: 2
control:
checked: true
- id: page_2
layout: flex
widgets:
- line:
styles: style_line
align: center
points:
- 5, 5
- 70, 70
- 120, 10
- 180, 60
- 240, 10
- obj:
width: size_content
height: size_content
widgets:
- btnmatrix:
align: BOTTOM_MID
items:
disabled:
bg_color: 0x00FFFF
align: center
id: keypad_matrix
disabled:
bg_color: 0x00FF00
rows:
- buttons:
- text: 1
key_code: "1"
- text: 2
key_code: "2"
- text: 3
- buttons:
- text: 4
- text: 5
- text: 6
key_code: 0x36
- buttons:
- text: 7
- text: 8
- text: 9
- buttons:
- text: ${backspace}
key_code: "*"
- text: 0
- text: ${check}
key_code: '#'
- label:
text_align: center
height: 100
id: pin_code
align: TOP_MID
- img:
x: 10
y: 200
src: cat_image
id: img_id
radius: 11
clip_corner: true
- label:
id: lbl_cathome
align_to:
id: img_id
x: 0
y: 10
align: OUT_BOTTOM_MID
text: 'Home'
text_color: 0x00FF00
- btn:
x: 100
y: 200
widgets:
- label:
text: Disable keypad
on_press:
then:
- lvgl.btnmatrix.update:
id: keypad_matrix
state:
disabled: true
items:
bg_color: 0x0000ff
- lvgl.spinner.update:
id: spinner_id
indicator:
arc_color: 0x0000FF
- btn:
x: 100
y: 240
widgets:
- label:
text: Enable keypad
on_press:
then:
- lvgl.btnmatrix.update:
id: keypad_matrix
state:
disabled: false
items:
bg_color: 0xf0f0f0
- spinner:
id: spinner_id
indicator:
arc_color: 0xF000FF
x: 200
y: 400
height: 100
width: 100
spin_time: 2s
arc_length: 60deg
- id: page_3
layout: flex
widgets:
- obj:
scrollbar_mode: "off"
pad_all: 0
width: 230
max_width: 230
height: 40
bg_opa: 0
border_width: 1
widgets:
- checkbox:
id: chk_stat_6
text: "Pretty long blah blah blah to go wider than obj width"
x: 5
y: 5
key_collector:
- id: pincode_reader
source_id: keypad_matrix
min_length: 4
max_length: 4
end_keys: "#"
end_key_required: true
back_keys: "*"
allowed_keys: "0123456789S"
timeout: 10s
on_progress:
- lvgl.label.update:
id: pin_code
text: !lambda 'return x.c_str();'
border_color: 0
- logger.log:
format: "input progress: '%s', started by '%c'"
args: [ 'x.c_str()', "(start == 0 ? '~' : start)" ]
on_result:
- logger.log:
format: "input result: '%s', started by '%c', ended by '%c'"
args: [ 'x.c_str()', "(start == 0 ? '~' : start)", "(end == 0 ? '~' : end)" ]
- lambda: id(text_sensor).publish_state(x);
on_timeout:
- logger.log:
format: "input timeout: '%s', started by '%c'"
args: [ 'x.c_str()', "(start == 0 ? '~' : start)" ]
text:
- platform: template
id: text_sensor
name: "Template text"
optimistic: true
#min_length: 0
#max_length: 100
mode: text
Raw
materialdesignicons-webfont.ttf
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montserrat.ttf
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s3box3.yaml
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t-display-amoled.yaml
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t-embed.yaml
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@Sleeper85
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@clydebarrow

First, thanks for all the work you have done to port LVGL to ESPHome.

Is there a way to test the LVGL YAML code in a PC simulator?

It would be great to be able to develop the code and see the result easily without having to flash the ESP32.

https://docs.lvgl.io/8.2/get-started/pc-simulator.html

Thanks for your help

@clydebarrow
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Author

You can use the host platform and SDL display driver. See https://esphome.io/components/display/sdl

@Sleeper85
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You can use the host platform and SDL display driver. See https://esphome.io/components/display/sdl

Thank you very much, this works perfectly.

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