AZ-Touch Mod + AZ-Delivery Dev Kit C quick start

ESPHome
1

Hello,
juist want to sum up my struggles getting the combination of an AZ-Touch Mod (version 01-03) and an ESP32 (model AZ-Delivery Dev Kit C) to work with ESPHOME 2022.11 (with the updated touchscreen platfrom).
Using the device in landscape mode with the USB-connector sticking out to the right when viewed from the front (display is thus 270° rotated).

IMG_5713
IMG_57131920×1440 231 KB

I could not get the touchscreen interrupt to work at all so the touchdevice is polled.

Hope this helps anyone else with the beautiful device. I will put it next to my air-conditioner, modified with an IR-blaster and a temp/hum sensor.

/Mattias

UPDATE: Make sure the ESP32-board is securely installed to the AZ-Touch board! Press down real good to get a good connection. The pins on the ESP32-board are almost too short so any wiggle on the USB-cable is likely cause issues. A sure sign is that screen goes completely white.

esphome:
  name: esphome-vp-display
  
esp32:
  board: az-delivery-devkit-v4

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:
  password: "84338517934eeb7c7de7d33c1f9f9dbe"

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

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Esphome-Vp-Display"
    password: "FiecN2HdFTT0"

captive_portal:

spi:
 clk_pin: 18
 mosi_pin: 23
 miso_pin: 19
 id: bus_spi

touchscreen:
  platform: xpt2046
  id: my_touchscreen
  cs_pin: GPIO14 
#  interrupt_pin: GPIO27 

  update_interval: 20ms
  report_interval: never
  threshold: 400
  # Using display in landscape mode
  # positions go in wrong direction
  swap_x_y: false
  calibration_x_max: 3848
  calibration_x_min: 281
  calibration_y_max: 347
  calibration_y_min: 3878
  
  on_touch:
    - lambda: |-
          ESP_LOGI("cal", "x=%d, y=%d, x_raw=%d, y_raw=%0d",
              id(my_touchscreen).x,
              id(my_touchscreen).y,
              id(my_touchscreen).x_raw,
              id(my_touchscreen).y_raw
              );

display:
  - platform: ili9341
    model: TFT 2.4
    cs_pin: GPIO5
    dc_pin: GPIO4
    reset_pin: GPIO22
    led_pin: 15 
    rotation: 270
    id: tft_ha      

    lambda: |-
      it.fill(Color::BLACK);
      it.print(0, 0, id(my_font), id(my_red), TextAlign::TOP_LEFT, "TOP LEFT");    
      it.print(320, 0, id(my_font), id(my_red), TextAlign::TOP_RIGHT, "TOP RIGHT");    
      it.print(0, 240, id(my_font), id(my_red), TextAlign::BOTTOM_LEFT, "BOT LEFT");    
      it.print(320, 240, id(my_font), id(my_red), TextAlign::BOTTOM_RIGHT, "BOT RIGHT");    

      it.line( 0,   80,  320, 80);
      it.line(0,   160, 320,160);
      it.line(80, 0, 80, 240);
      it.line(160, 0, 160, 240);
      it.line(240, 0, 240, 240);
      
      if (id(my_touchscreen).touched)
        it.filled_circle(id(my_touchscreen).x, id(my_touchscreen).y, 10, id(my_red));
    
color:
  - id: my_red
    red: 100%
    green: 3%
    blue: 5%    
    
font:
  - file: "arial.ttf"
    id: my_font
    size: 20   
 
output:
  # backlight
  - platform: ledc
    pin: 15
    id: gpio_15_backlight_pwm
    inverted: true

light:
  # backlight for HA
  - platform: monochromatic
    output: gpio_15_backlight_pwm
    name: "ILI9341 Display Backlight"
    id: back_light
    restore_mode: ALWAYS_ON
2

Great to see.

Are you aware of openhasp, which supports these boards? openHASP

3

Hi, yes I am. However I got into so much problems after enabling MQTT on my HA instance I have stayed away from it since then. One have to choose what battles to fight…

4

Been struggling with this for some days now…
I couldn’t get the log printout to work.
Digging in touchscreen code, I found out that this is working:

  on_release:
    then:
      - script.execute: start_bkgr_light
      - lambda: |-
          ESP_LOGI("cal", "x=%d, y=%d, x_raw=%d, y_raw=%0d",
          id(touchid).get_touch()->x,
          id(touchid).get_touch()->y,
          id(touchid).get_touch()->x_raw,
          id(touchid).get_touch()->y_raw);