ESPHome and Elecrow CrowPanel 7.0"

Hardware
1

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

IMG_1151
IMG_11511920×1213 160 KB

IMG_0918
IMG_09181920×1254 383 KB

2

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.

1 Like
3

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?

IMG_3792_2
IMG_3792_21920×1440 262 KB

4

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

1 Like
6

I have hardware version 2.1.

7

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

1 Like
8

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

9

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"
2 Likes
10

@lboue Is it still unstable?

11

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