Add Lilygo T-Embed to st7789v display config. (#5337)

* Add Lilygo T-Embed to st7789v display config.

* Move all configuration into the Python code.
Add presets for TTGO.
All preset configuration can be overridden.

* Add Adafruit S2 pin presets

* Add test

* Add funhouse pins.

Co-authored-by: Keith Burzinski <kbx81x@gmail.com>

* Keep ordering of options consistent

* Remove unused declarations

---------

Co-authored-by: Keith Burzinski <kbx81x@gmail.com>

esphome/components/st7789v/display.py

@@ -12,6 +12,8 @@ from esphome.const import (
     CONF_RESET_PIN,
     CONF_WIDTH,
     CONF_POWER_SUPPLY,
+    CONF_ROTATION,
+    CONF_CS_PIN,
 )
 from . import st7789v_ns
 
@@ -26,48 +28,106 @@ DEPENDENCIES = ["spi"]
 ST7789V = st7789v_ns.class_(
     "ST7789V", cg.PollingComponent, spi.SPIDevice, display.DisplayBuffer
 )
-ST7789VRef = ST7789V.operator("ref")
+
-ST7789VModel = st7789v_ns.enum("ST7789VModel")
+MODEL_PRESETS = "model_presets"
+REQUIRE_PS = "require_ps"
+
+
+def model_spec(require_ps=False, presets=None):
+    if presets is None:
+        presets = {}
+    return {MODEL_PRESETS: presets, REQUIRE_PS: require_ps}
+
 
 MODELS = {
-    "TTGO_TDISPLAY_135X240": ST7789VModel.ST7789V_MODEL_TTGO_TDISPLAY_135_240,
+    "TTGO_TDISPLAY_135X240": model_spec(
-    "ADAFRUIT_FUNHOUSE_240X240": ST7789VModel.ST7789V_MODEL_ADAFRUIT_FUNHOUSE_240_240,
+        presets={
-    "ADAFRUIT_RR_280X240": ST7789VModel.ST7789V_MODEL_ADAFRUIT_RR_280_240,
+            CONF_HEIGHT: 240,
-    "ADAFRUIT_S2_TFT_FEATHER_240X135": ST7789VModel.ST7789V_MODEL_ADAFRUIT_S2_TFT_FEATHER_240_135,
+            CONF_WIDTH: 135,
-    "CUSTOM": ST7789VModel.ST7789V_MODEL_CUSTOM,
+            CONF_OFFSET_HEIGHT: 52,
+            CONF_OFFSET_WIDTH: 40,
+            CONF_CS_PIN: "GPIO5",
+            CONF_DC_PIN: "GPIO16",
+            CONF_RESET_PIN: "GPIO23",
+            CONF_BACKLIGHT_PIN: "GPIO4",
+        }
+    ),
+    "ADAFRUIT_FUNHOUSE_240X240": model_spec(
+        presets={
+            CONF_HEIGHT: 240,
+            CONF_WIDTH: 240,
+            CONF_OFFSET_HEIGHT: 0,
+            CONF_OFFSET_WIDTH: 0,
+            CONF_CS_PIN: "GPIO40",
+            CONF_DC_PIN: "GPIO39",
+            CONF_RESET_PIN: "GPIO41",
+        }
+    ),
+    "ADAFRUIT_RR_280X240": model_spec(
+        presets={
+            CONF_HEIGHT: 280,
+            CONF_WIDTH: 240,
+            CONF_OFFSET_HEIGHT: 0,
+            CONF_OFFSET_WIDTH: 20,
+        }
+    ),
+    "ADAFRUIT_S2_TFT_FEATHER_240X135": model_spec(
+        require_ps=True,
+        presets={
+            CONF_HEIGHT: 240,
+            CONF_WIDTH: 135,
+            CONF_OFFSET_HEIGHT: 52,
+            CONF_OFFSET_WIDTH: 40,
+            CONF_CS_PIN: "GPIO7",
+            CONF_DC_PIN: "GPIO39",
+            CONF_RESET_PIN: "GPIO40",
+            CONF_BACKLIGHT_PIN: "GPIO45",
+        },
+    ),
+    "LILYGO_T-EMBED_170X320": model_spec(
+        presets={
+            CONF_HEIGHT: 320,
+            CONF_WIDTH: 170,
+            CONF_OFFSET_HEIGHT: 35,
+            CONF_OFFSET_WIDTH: 0,
+            CONF_ROTATION: 270,
+            CONF_CS_PIN: "GPIO10",
+            CONF_DC_PIN: "GPIO13",
+            CONF_RESET_PIN: "GPIO9",
+            CONF_BACKLIGHT_PIN: "GPIO15",
+        }
+    ),
+    "CUSTOM": model_spec(),
 }
 
-ST7789V_MODEL = cv.enum(MODELS, upper=True, space="_")
-
 
 def validate_st7789v(config):
-    if config[CONF_MODEL].upper() == "CUSTOM" and (
+    model_data = MODELS[config[CONF_MODEL]]
-        CONF_HEIGHT not in config
+    presets = model_data[MODEL_PRESETS]
-        or CONF_WIDTH not in config
+    for key, value in presets.items():
-        or CONF_OFFSET_HEIGHT not in config
+        if key not in config:
-        or CONF_OFFSET_WIDTH not in config
+            if key.endswith("pin"):
-    ):
+                # All pins are output.
-        raise cv.Invalid(
+                value = pins.gpio_output_pin_schema(value)
-            f'{CONF_HEIGHT}, {CONF_WIDTH}, {CONF_OFFSET_HEIGHT} and {CONF_OFFSET_WIDTH} must be specified when {CONF_MODEL} is "CUSTOM"'
+            config[key] = value
-        )
 
-    if config[CONF_MODEL].upper() != "CUSTOM" and (
+    if model_data[REQUIRE_PS] and CONF_POWER_SUPPLY not in config:
-        CONF_HEIGHT in config
-        or CONF_WIDTH in config
-        or CONF_OFFSET_HEIGHT in config
-        or CONF_OFFSET_WIDTH in config
-    ):
         raise cv.Invalid(
-            f'Do not specify {CONF_HEIGHT}, {CONF_WIDTH}, {CONF_OFFSET_HEIGHT} or {CONF_OFFSET_WIDTH} when using {CONF_MODEL} that is not "CUSTOM"'
+            f'{CONF_POWER_SUPPLY} must be specified when {CONF_MODEL} is {config[CONF_MODEL]}"'
         )
 
     if (
-        config[CONF_MODEL].upper() == "ADAFRUIT_S2_TFT_FEATHER_240X135"
+        CONF_OFFSET_WIDTH not in config
-        and CONF_POWER_SUPPLY not in config
+        or CONF_OFFSET_HEIGHT not in config
+        or CONF_HEIGHT not in config
+        or CONF_WIDTH not in config
     ):
         raise cv.Invalid(
-            f'{CONF_POWER_SUPPLY} must be specified when {CONF_MODEL} is "ADAFRUIT_S2_TFT_FEATHER_240X135"'
+            f"{CONF_HEIGHT}, {CONF_WIDTH}, {CONF_OFFSET_HEIGHT} and {CONF_OFFSET_WIDTH} must all be specified"
         )
+    if CONF_DC_PIN not in config or CONF_RESET_PIN not in config:
+        raise cv.Invalid(f"both {CONF_DC_PIN} and {CONF_RESET_PIN} must be specified")
+
     return config
 
 
@@ -75,9 +135,9 @@ CONFIG_SCHEMA = cv.All(
     display.FULL_DISPLAY_SCHEMA.extend(
         {
             cv.GenerateID(): cv.declare_id(ST7789V),
-            cv.Required(CONF_MODEL): ST7789V_MODEL,
+            cv.Required(CONF_MODEL): cv.one_of(*MODELS.keys(), upper=True, space="_"),
-            cv.Required(CONF_RESET_PIN): pins.gpio_output_pin_schema,
+            cv.Optional(CONF_RESET_PIN): pins.gpio_output_pin_schema,
-            cv.Required(CONF_DC_PIN): pins.gpio_output_pin_schema,
+            cv.Optional(CONF_DC_PIN): pins.gpio_output_pin_schema,
             cv.Optional(CONF_BACKLIGHT_PIN): pins.gpio_output_pin_schema,
             cv.Optional(CONF_POWER_SUPPLY): cv.use_id(power_supply.PowerSupply),
             cv.Optional(CONF_EIGHTBITCOLOR, default=False): cv.boolean,
@@ -99,9 +159,8 @@ async def to_code(config):
     await display.register_display(var, config)
     await spi.register_spi_device(var, config)
 
-    cg.add(var.set_model(config[CONF_MODEL]))
+    cg.add(var.set_model_str(config[CONF_MODEL]))
 
-    if config[CONF_MODEL].upper() == "CUSTOM":
     cg.add(var.set_height(config[CONF_HEIGHT]))
     cg.add(var.set_width(config[CONF_WIDTH]))
     cg.add(var.set_offset_height(config[CONF_OFFSET_HEIGHT]))

esphome/components/st7789v/st7789v.cpp

@@ -122,11 +122,11 @@ void ST7789V::setup() {
 
 void ST7789V::dump_config() {
   LOG_DISPLAY("", "SPI ST7789V", this);
-  ESP_LOGCONFIG(TAG, "  Model: %s", this->model_str_());
+  ESP_LOGCONFIG(TAG, "  Model: %s", this->model_str_);
-  if (this->model_ == ST7789V_MODEL_CUSTOM) {
+  ESP_LOGCONFIG(TAG, "  Height: %u", this->height_);
+  ESP_LOGCONFIG(TAG, "  Width: %u", this->width_);
   ESP_LOGCONFIG(TAG, "  Height Offset: %u", this->offset_height_);
   ESP_LOGCONFIG(TAG, "  Width Offset: %u", this->offset_width_);
-  }
   ESP_LOGCONFIG(TAG, "  8-bit color mode: %s", YESNO(this->eightbitcolor_));
   LOG_PIN("  CS Pin: ", this->cs_);
   LOG_PIN("  DC Pin: ", this->dc_pin_);
@@ -145,42 +145,7 @@ void ST7789V::update() {
   this->write_display_data();
 }
 
-void ST7789V::set_model(ST7789VModel model) {
+void ST7789V::set_model_str(const char *model_str) { this->model_str_ = model_str; }
-  this->model_ = model;
-
-  switch (this->model_) {
-    case ST7789V_MODEL_TTGO_TDISPLAY_135_240:
-      this->height_ = 240;
-      this->width_ = 135;
-      this->offset_height_ = 52;
-      this->offset_width_ = 40;
-      break;
-
-    case ST7789V_MODEL_ADAFRUIT_FUNHOUSE_240_240:
-      this->height_ = 240;
-      this->width_ = 240;
-      this->offset_height_ = 0;
-      this->offset_width_ = 0;
-      break;
-
-    case ST7789V_MODEL_ADAFRUIT_RR_280_240:
-      this->height_ = 280;
-      this->width_ = 240;
-      this->offset_height_ = 0;
-      this->offset_width_ = 20;
-      break;
-
-    case ST7789V_MODEL_ADAFRUIT_S2_TFT_FEATHER_240_135:
-      this->height_ = 240;
-      this->width_ = 135;
-      this->offset_height_ = 52;
-      this->offset_width_ = 40;
-      break;
-
-    default:
-      break;
-  }
-}
 
 void ST7789V::write_display_data() {
   uint16_t x1 = this->offset_height_;
@@ -339,20 +304,5 @@ void HOT ST7789V::draw_absolute_pixel_internal(int x, int y, Color color) {
   }
 }
 
-const char *ST7789V::model_str_() {
-  switch (this->model_) {
-    case ST7789V_MODEL_TTGO_TDISPLAY_135_240:
-      return "TTGO T-Display 135x240";
-    case ST7789V_MODEL_ADAFRUIT_FUNHOUSE_240_240:
-      return "Adafruit Funhouse 240x240";
-    case ST7789V_MODEL_ADAFRUIT_RR_280_240:
-      return "Adafruit Round-Rectangular 280x240";
-    case ST7789V_MODEL_ADAFRUIT_S2_TFT_FEATHER_240_135:
-      return "Adafruit ESP32-S2 TFT Feather";
-    default:
-      return "Custom";
-  }
-}
-
 }  // namespace st7789v
 }  // namespace esphome

esphome/components/st7789v/st7789v.h

@@ -10,14 +10,6 @@
 namespace esphome {
 namespace st7789v {
 
-enum ST7789VModel {
-  ST7789V_MODEL_TTGO_TDISPLAY_135_240,
-  ST7789V_MODEL_ADAFRUIT_FUNHOUSE_240_240,
-  ST7789V_MODEL_ADAFRUIT_RR_280_240,
-  ST7789V_MODEL_ADAFRUIT_S2_TFT_FEATHER_240_135,
-  ST7789V_MODEL_CUSTOM
-};
-
 static const uint8_t ST7789_NOP = 0x00;        // No Operation
 static const uint8_t ST7789_SWRESET = 0x01;    // Software Reset
 static const uint8_t ST7789_RDDID = 0x04;      // Read Display ID
@@ -120,7 +112,7 @@ class ST7789V : public PollingComponent,
                 public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW, spi::CLOCK_PHASE_LEADING,
                                       spi::DATA_RATE_20MHZ> {
  public:
-  void set_model(ST7789VModel model);
+  void set_model_str(const char *model_str);
   void set_dc_pin(GPIOPin *dc_pin) { this->dc_pin_ = dc_pin; }
   void set_reset_pin(GPIOPin *reset_pin) { this->reset_pin_ = reset_pin; }
   void set_backlight_pin(GPIOPin *backlight_pin) { this->backlight_pin_ = backlight_pin; }
@@ -146,7 +138,6 @@ class ST7789V : public PollingComponent,
   display::DisplayType get_display_type() override { return display::DisplayType::DISPLAY_TYPE_COLOR; }
 
  protected:
-  ST7789VModel model_{ST7789V_MODEL_TTGO_TDISPLAY_135_240};
   GPIOPin *dc_pin_{nullptr};
   GPIOPin *reset_pin_{nullptr};
   GPIOPin *backlight_pin_{nullptr};
@@ -175,7 +166,7 @@ class ST7789V : public PollingComponent,
 
   void draw_absolute_pixel_internal(int x, int y, Color color) override;
 
-  const char *model_str_();
+  const char *model_str_;
 };
 
 }  // namespace st7789v

tests/test2.yaml

@@ -710,6 +710,14 @@ interval:
     - logger.log: Interval Run
 
 display:
+  - platform: st7789v
+    model: LILYGO_T-EMBED_170X320
+    height: 320
+    width: 170
+    offset_height: 35
+    offset_width: 0
+    dc_pin: GPIO13
+    reset_pin: GPIO9
 
 image:
   - id: binary_image