hapklaar
February 1, 2025, 2:59pm
1
Trying to get started with some LVGL testing on a T-Display-S3 (no touch), but the device gets into a boot loop with the minimal configuration. What am I doing wrong and does anyone have some complete examples I can learn from?
This is my current minimal config:
esphome:
name: tdisplay-s3-lvgltesting
friendly_name: tdisplay-s3-lvgltesting
esp32:
board: esp32-s3-devkitc-1
framework:
type: esp-idf
spi:
id: quad_spi
type: quad
clk_pin: 47
data_pins:
- 18
- 7
- 48
- 5
# Enable logging
logger:
api:
encryption:
key: !secret api_secret
ota:
- platform: esphome
password: !secret ota_password
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
power_save_mode: none
display:
- platform: qspi_dbi
id: my_display
model: RM67162
dimensions:
height: 240
width: 536
offset_height: 0
offset_width: 0
transform:
mirror_x: true
mirror_y: false
swap_xy: true
color_order: rgb
invert_colors: false
brightness: 175
cs_pin: 6
reset_pin: 17
enable_pin: 38
auto_clear_enabled: false
draw_from_origin: true
lvgl:
error I’m getting:
[15:59:11]ESP-ROM:esp32s3-20210327
[15:59:11][I][logger:171]: Log initialized
[15:59:11][C][safe_mode:079]: There have been 10 suspected unsuccessful boot attempts
[15:59:11][D][esp32.preferences:114]: Saving 1 preferences to flash...
[15:59:11][D][esp32.preferences:142]: Saving 1 preferences to flash: 0 cached, 1 written, 0 failed
[15:59:11][E][safe_mode:086]: Boot loop detected. Proceeding to safe mode
[15:59:11][E][component:164]: Component safe_mode set Error flag: unspecified
carbuthn
February 1, 2025, 10:21pm
2
Just to make sure which display you are using? Do you have the T-Display S3 AMOLED V1.0 or the T-Display S3 AMOLED V2.0 or the T-Display S3 Pro or the T-Display S3 AMOLED Plus?
The T-Display S3 Pro or the T-Display S3 AMOLED Plus are totally different setups, I am linking working code for T-Display and T-Display S3 AMOLED V2.0
The code is for a blood glucose monitor display, You will need to comment out the sections for:
- platform: homeassistant
id: blood_sugar
entity_id: sensor.blood_sugar_2
accuracy_decimals: 0
unit_of_measurement: mg/dL
on_value:
- lvgl.label.update:
id: bg_level
text:
format: "%.0f"
args: [x]
text_color: !lambda |-
if (x < 55 || x >= 260.0) return lv_color_hex(0xFF0000);
if ((x >= 55.0 && x < 70.0) || (x >= 180.0 && x < 260.0)) return lv_color_hex(0xFFFF00);
if (x >= 70.0 && x < 180.0) return lv_color_hex(0x00FF00);
return lv_color_hex(0xFF00FF);
Make sure that you have the font file loaded in the config > esphome > fonts directory.
carbuthn
February 1, 2025, 10:23pm
3
# Uses the following devices
# - LilyGo T-Display S3 AMOLED V2.0 with Touch
# - Blood_Sugar sensor from Home Assistant NightScout Integration
# touchscreen:
# platform: cst816
# display:
# - platform: qspi_amoled
# model: RM67162
substitutions:
disp_name: CGM Display Amoled
esphome:
name: cgm-display-amoled
friendly_name: cgm-display-amoled
platformio_options:
build_unflags: -Werror=all
board_build.flash_mode: dio
esp32:
board: esp32-s3-devkitc-1
framework:
type: esp-idf
version: recommended
sdkconfig_options:
CONFIG_ESP32S3_DEFAULT_CPU_FREQ_240: "y"
CONFIG_ESP32S3_DATA_CACHE_64KB: "y"
CONFIG_SPIRAM_FETCH_INSTRUCTIONS: y
CONFIG_SPIRAM_RODATA: y
flash_size: 16MB
logger:
level: debug
api:
ota:
platform: esphome
web_server:
port: 80
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
manual_ip:
static_ip: 192.168.0.34
gateway: 192.168.0.1
subnet: 255.255.255.0
ap:
ssid: "CGM Display Amoled"
spi:
id: quad_spi
type: quad
clk_pin: 47
data_pins: [18, 7, 48, 5]
i2c:
sda: 3
scl: 2
font:
- file: 'fonts/arial.ttf'
id: font1
size: 156
extras:
- file: "fonts/materialdesignicons-webfont.ttf"
glyphs: [
"\U000F19B2", # ArrowUpThin
"\U000F19B4", # ArrowTopRightThin
"\U000F19B0", # ArrowRightThin
"\U000F19B7", # ArrowBottomRightThin
"\U000F19B3", # ArrowDownThin
]
- file: 'fonts/roboto.ttf'
id: font2
size: 72
display:
- platform: qspi_dbi
model: RM67162
id: my_display
dimensions:
height: 240
width: 536
offset_height: 0
offset_width: 0
transform:
mirror_x: true
swap_xy: true
color_order: rgb
brightness: 150
cs_pin: 6
reset_pin: 17
enable_pin: 38
update_interval: never
auto_clear_enabled: false
lvgl:
displays:
- my_display
pages:
- id: main_page
bg_color: 0X000000
widgets:
- label:
id: trend_dir
align: TOP_RIGHT
pad_right: 55
text_color: 0XFFFFFF
text_font: font1
text: " "
- label:
id: bg_level
align: TOP_LEFT
pad_left: 55
text_font: font1
text_color: 0x00FF00
text: " "
- label:
id: my_time_label
align: BOTTOM_MID
text_color: 0XFFFFFF
text_font: font2
text: " "
psram:
mode: octal
time:
- platform: homeassistant
id: esptime
on_time_sync:
then:
- lvgl.label.update:
id: my_time_label
text:
time_format: "%I : %M %p"
time: !lambda return id(esptime).now();
on_time:
- minutes: '*'
seconds: 0
then:
- lvgl.label.update:
id: my_time_label
text:
time_format: "%I : %M %p"
time: !lambda return id(esptime).now();
switch:
- platform: restart
name: ${disp_name} Restart
sensor:
- platform: wifi_signal
name: ${disp_name} WiFi Status
update_interval: 10s
- platform: homeassistant
id: blood_sugar
entity_id: sensor.blood_sugar_2
accuracy_decimals: 0
unit_of_measurement: mg/dL
on_value:
- lvgl.label.update:
id: bg_level
text:
format: "%.0f"
args: [x]
text_color: !lambda |-
if (x < 55 || x >= 260.0) return lv_color_hex(0xFF0000);
if ((x >= 55.0 && x < 70.0) || (x >= 180.0 && x < 260.0)) return lv_color_hex(0xFFFF00);
if (x >= 70.0 && x < 180.0) return lv_color_hex(0x00FF00);
return lv_color_hex(0xFF00FF);
text_sensor:
- platform: homeassistant
id: bg_direction
entity_id: sensor.blood_sugar_2
attribute: direction
on_value:
- lvgl.label.update:
id: trend_dir
text: !lambda |-
if (x == "Flat") return "\U000F19B0";
if (x == "SingleDown") return "\U000F19B3";
if (x == "FortyFiveDown") return "\U000F19B7";
if (x == "SingleUp") return "\U000F19B2";
if (x == "FortyFiveUp") return "\U000F19B4";
return " ";
- platform: wifi_info
ip_address:
name: ESP IP Address
ssid:
name: ESP Connected SSID
mac_address:
name: ESP Mac Wifi Address
captive_portal:
carbuthn
February 1, 2025, 10:25pm
4
# Uses the following devices
# - Lilygo T-Display s3-Pro
# - Blood_Sugar sensor from Home Assistant NightScout Integration
# touchscreen:
# platform: CST226
# display:
# - platform: ili9xxx
# model: st7796
# This display uses color_order: bgr
# This display uses invert_colors: true
substitutions:
disp_name: CGM T-Display S3 Pro1
esphome:
name: cgm-display-s3-pro1
friendly_name: cgm-display-s3-pro1
platformio_options:
build_unflags: -Werror=all
board_build.flash_mode: dio
on_boot:
then:
- output.set_level:
id: gpio_48_backlight_pwm
level: 50%
esp32:
board: esp32-s3-devkitc-1
framework:
type: esp-idf
version: recommended
sdkconfig_options:
CONFIG_ESP32S3_DEFAULT_CPU_FREQ_240: "y"
CONFIG_ESP32S3_DATA_CACHE_64KB: "y"
CONFIG_SPIRAM_FETCH_INSTRUCTIONS: y
CONFIG_SPIRAM_RODATA: y
flash_size: 16MB
logger:
level: DEBUG
api:
ota:
- platform: esphome
web_server:
port: 80
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
manual_ip:
static_ip: 192.168.0.198
gateway: 192.168.0.1
subnet: 255.255.255.0
ap:
ssid: ${disp_name} Fallback
i2c:
sda: 5
scl: 6
scan: false
id: i2c_bus
spi:
# cs_pin: 40
miso_pin: 8
mosi_pin: 17
clk_pin: 18
psram:
speed: 80MHz
mode: octal
font:
- file: 'fonts/arial.ttf'
id: font1
size: 144
extras:
- file: "fonts/materialdesignicons-webfont.ttf"
glyphs: [
"\U000F19B2", # ArrowUpThin
"\U000F19B4", # ArrowTopRightThin
"\U000F19B0", # ArrowRightThin
"\U000F19B7", # ArrowBottomRightThin
"\U000F19B3", # ArrowDownThin
]
- file: 'fonts/roboto.ttf'
id: font2
size: 60
display:
- platform: ili9xxx
model: ST7796
cs_pin: 39
dc_pin: 9
reset_pin: 47
id: my_display
data_rate: 2MHz
dimensions:
height: 222
width: 480
offset_width: 0
offset_height: 49
transform:
mirror_y: false
mirror_x: false
swap_xy: true
color_order: bgr
invert_colors: true
update_interval: never
auto_clear_enabled: false
lvgl:
displays:
- my_display
pages:
- id: main_page
bg_color: 0X000000
widgets:
- label:
id: trend_dir
align: TOP_RIGHT
pad_top: 2
text_color: 0XFFFFFF
text_font: font1
text: " "
- label:
id: bg_level
align: TOP_MID
pad_top: 2
text_font: font1
text_color: 0x00FF00
text: " "
- label:
id: my_time_label
align: BOTTOM_MID
text_color: 0XFFFFFF
text_font: font2
text: " "
switch:
- platform: restart
name: ${disp_name} Restart
time:
- platform: homeassistant
id: esptime
on_time_sync:
then:
- lvgl.label.update:
id: my_time_label
text:
time_format: "%I : %M %p"
time: !lambda return id(esptime).now();
on_time:
- minutes: '*'
seconds: 0
then:
- lvgl.label.update:
id: my_time_label
text:
time_format: "%I : %M %p"
time: !lambda return id(esptime).now();
output:
- platform: ledc
pin: 48
id: gpio_48_backlight_pwm
min_power: 0.25 # Any lower the Backlight Flashes
max_power: 0.4
light:
- platform: monochromatic
output: gpio_48_backlight_pwm
name: "Display Backlight"
id: back_light
restore_mode: always_on
sensor:
- platform: wifi_signal
name: ${disp_name} WiFi Status
update_interval: 10s
- platform: homeassistant
id: blood_sugar
entity_id: sensor.blood_sugar_2
accuracy_decimals: 0
unit_of_measurement: mg/dL
on_value:
- lvgl.label.update:
id: bg_level
text:
format: "%.0f"
args: [x]
text_color: !lambda |-
if (x < 55 || x >= 260.0) return lv_color_hex(0xFF0000);
if ((x >= 55.0 && x < 70.0) || (x >= 180.0 && x < 260.0)) return lv_color_hex(0xFFFF00);
if (x >= 70.0 && x < 180.0) return lv_color_hex(0x00FF00);
return lv_color_hex(0xFF00FF);
text_sensor:
- platform: homeassistant
id: bg_direction
entity_id: sensor.blood_sugar_2
attribute: direction
on_value:
- lvgl.label.update:
id: trend_dir
text: !lambda |-
if (x == "Flat") return "\U000F19B0";
if (x == "SingleDown") return "\U000F19B3";
if (x == "FortyFiveDown") return "\U000F19B7";
if (x == "SingleUp") return "\U000F19B2";
if (x == "FortyFiveUp") return "\U000F19B4";
return " ";
- platform: wifi_info
ip_address:
name: ESP IP Address
ssid:
name: ESP Connected SSID
mac_address:
name: ESP Mac Wifi Address
sy6970:
i2c_id: i2c_bus
state_led_enable: false
external_components:
- source: github://buglloc/esphome-components
components: [ sy6970 ]
captive_portal: