ESPHome and Elecrow CrowPanel 7.0"

lboue · July 8, 2024, 9:25pm

ESPHome and Elecrow CrowPanel 7.0"

I’ve finally managed to display something using ESPHome on my Elecrow CrowPanel 7.0" hardware version 2.1:

#-------------------------------------------
# Touchscreen gt911 i2c
#-------------------------------------------
touchscreen:
  platform: gt911
  id: my_touchscreen
  display: my_display
  interrupt_pin: 38

i2c:
  sda: 19
  scl: 20
  scan: true

display:
  - platform: rpi_dpi_rgb
    id: my_display
    data_pins:
      red:
        - 14
        - 21
        - 47
        - 48
        - 45
      green:
        - 9
        - 46
        - 3
        - 8
        - 16 
        - 1
      blue:
        - 15
        - 7
        - 6
        - 5
        - 4
    de_pin: 41
    hsync_pin: 39
    vsync_pin: 40
    pclk_pin: 0

    hsync_front_porch: 40
    hsync_pulse_width: 48
    hsync_back_porch: 13

    vsync_front_porch: 1
    vsync_pulse_width: 31
    vsync_back_porch: 13

    pclk_inverted: true
    pclk_frequency: 8500000

    color_order: RGB

    auto_clear_enabled: false
    update_interval: 5s
    dimensions:
      width: 800
      height: 480

    lambda: |-
      auto black = Color(0, 0, 0);
      auto red = Color(255, 0, 0);
      auto green = Color(0, 255, 0);
      auto blue = Color(0, 0, 255);
      auto white = Color(255, 255, 255);
      it.filled_circle(20, 32, 15, black);
      it.filled_circle(40, 32, 15, red);
      it.filled_circle(60, 32, 15, green);
      it.filled_circle(80, 32, 15, blue);
      it.filled_circle(100, 32, 15, white);

Doc preview: RPI_DPI_RGB Display Driver, section Elecrow CrowPanel 7.0” 800x480

nog3 · July 13, 2024, 12:43pm

Is there any chance you could please share the rest of the YAML for your testing?

I’ve successfully compiled and uploaded, but blank screen on the display still. I suspect my board type is set wrong or the backlight isn’t being turned on.

goosecrew · July 18, 2024, 4:59pm

I have a similar problem. the screen is black and nothing is displayed.
I think it might be important - I have version v3.0, and you?

goosecrew · July 18, 2024, 6:14pm

I tried to install open hasp and I succeeded, some kind of night release, https://nightly.openhasp.com

lboue · July 21, 2024, 8:12pm

I have hardware version 2.1.

goosecrew · July 21, 2024, 9:33pm

Apparently, there are some features in v3.0. Anyway, I’m glad that I came across OpenHASP, a cool thing.

nog3 · July 21, 2024, 11:40pm

I also have 2.1. Can you please share the full yaml with the esp32/platform version you are using?

lboue · July 23, 2024, 7:53am

The display is not stable. You have to wait a long time. It doesn’t work every time.

esphome:
  name: elecrow-crowpanel-70-rgb
  friendly_name: Elecrow CrowPanel 7.0 RGB

  platformio_options:
    # see https://community.home-assistant.io/t/esp32-with-esp-idf-framework-running-into-a-boot-loop/567305/11
    board_build.flash_mode: dio

    # see https://community.home-assistant.io/t/esp32-s3-devkitc-1-n16r8-using-psram-howto/652601
    build_flags: "-DBOARD_HAS_PSRAM"

esp32:
  board: esp32-s3-devkitc-1
  framework:
    #type: arduino
    type: esp-idf

psram:
  mode: octal
  speed: 80MHz

# Enable logging
logger:
  level: DEBUG

# Enable Home Assistant API
api:
  encryption:
    key: "*************"

ota:
  - platform: esphome
    password: "***********"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # see https://www.reddit.com/r/Esphome/comments/13ee5n8/comment/jjptvux/
  power_save_mode: none

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Elecrow-Crowpanel-70-Rgb"
    password: "vPeb0A44Lpq1"

captive_portal:


i2c:
  sda: 19
  scl: 20
  scan: true

display:
  - platform: rpi_dpi_rgb
    id: disp0
    data_pins:
      red:
        - 14
        - 21
        - 47
        - 48
        - 45
      green:
        - 9
        - 46
        - 3
        - 8
        - 16 
        - 1
      blue:
        - 15
        - 7
        - 6
        - 5
        - 4
    de_pin: 41
    hsync_pin: 39
    vsync_pin: 40
    pclk_pin: 0

    hsync_front_porch: 40
    hsync_pulse_width: 48
    hsync_back_porch: 13

    vsync_front_porch: 1
    vsync_pulse_width: 31
    vsync_back_porch: 13

    pclk_inverted: true
    pclk_frequency: 8500000

    color_order: RGB

    auto_clear_enabled: false
    update_interval: 5s
    dimensions:
      width: 800
      height: 480

    show_test_card: true

    lambda: |-
      auto black = Color(0, 0, 0);
      auto red = Color(255, 0, 0);
      auto green = Color(0, 255, 0);
      auto blue = Color(0, 0, 255);
      auto white = Color(255, 255, 255);
      it.filled_circle(20, 32, 15, black);
      it.filled_circle(40, 32, 15, red);
      it.filled_circle(60, 32, 15, green);
      it.filled_circle(80, 32, 15, blue);
      it.filled_circle(100, 32, 15, white);

touchscreen:
  platform: gt911
  id: touch0
  display: disp0
  interrupt_pin: 38

output:
  - platform: ledc
    pin: 2
    id: backlight_pin

light:
  - platform: monochromatic
    output: backlight_pin
    name: "Backlight Level"
    restore_mode: RESTORE_DEFAULT_ON

sensor:
  - platform: wifi_signal # Reports the WiFi signal strength/RSSI in dB
    name: "WiFi Signal dB"
    id: wifi_signal_db
    update_interval: 60s
    entity_category: "diagnostic"

generic_bios · September 1, 2024, 11:37am

@lboue Is it still unstable?

lboue · September 2, 2024, 8:30pm

Yes, it’s always unstable. I’ve given up.

RyanEwen · October 10, 2024, 8:36pm

I have a different device using the same display driver and it is also unstable… except I found someone using specific / older versions which helped a lot with my device. Maybe try this on yours:

esp32:
  ...
  framework:
    type: esp-idf
    # these versions prevent artifacting
    version: 5.1.2
    platform_version: 6.5.0
    ...

clydebarrow · October 15, 2024, 10:42pm

See Elecrow CrowPanel 7" with ESPHome - #5 by clydebarrow

enjoysap · November 18, 2024, 10:48pm

Hi
i also tried to use openHASP wtih my Crowpanel 7.0 Version 3
everything works, but not the touch
then I built my own build here, but unfortunately without success.
Touch didn’t work with my own build either.

Touchsettings in crowpanel-hmi.ini
see openHASP/user_setups/esp32s3/crowpanel-hmi.ini at 355e1dbddaf65b555de4c2ee94b627760b9e9e45 · HASwitchPlate/openHASP · GitHub

But I have the exact values as in ESPHome where the same touchpanel works
; Touch Settings
-D HASP_USE_LGFX_TOUCH=1
-D TOUCH_WIDTH=800
-D TOUCH_HEIGHT=480
-D TOUCH_DRIVER=0x911
-D TOUCH_SCL=20
-D TOUCH_SDA=19
-D TOUCH_IRQ=-1
-D TOUCH_RST=-1
-D I2C_TOUCH_ADDRESS=0x5D
-D I2C_TOUCH_FREQUENCY=400000

are similar to ESPHome Settings

for Touch

i2c:
sda: 19
scl: 20
touchscreen:
platform: gt911
id: LCD_touchscreen
display: main_display
update_interval: 50ms
address: 0x5D

if i run mqtt publish to the device
hasp/crowpanel_7/state/statusupdate
the rsponse is
…
“tftDriver”: “Other”,
…
Do you have success with the touch ?
Regards Oliver
#openhasp