[epaper_spi] Add T133A01 6-color e-paper driver for reTerminal E1004 (#16706)

Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: Clyde Stubbs <2366188+clydebarrow@users.noreply.github.com>

tests/component_tests/epaper_spi/test_init.py

@@ -154,6 +154,10 @@ def test_all_predefined_models(
         if not model.get_default(CONF_CS_PIN):
             config[CONF_CS_PIN] = 5
 
+        # Dual-CS models (e.g. T133A01) require a second chip-select pin
+        if model.manages_cs and not model.get_default("cs1_pin"):
+            config["cs1_pin"] = 4
+
         # Select an ESP32 variant on which all of this model's pins are valid
         # (some models default to high-numbered pins only present on the S3).
         choose_variant_with_pins(_pins_for(model, config))
@@ -204,6 +208,10 @@ def test_individual_models(
     if not model.get_default(CONF_CS_PIN):
         config[CONF_CS_PIN] = 5
 
+    # Dual-CS models (e.g. T133A01) require a second chip-select pin
+    if model.manages_cs and not model.get_default("cs1_pin"):
+        config["cs1_pin"] = 4
+
     # Select an ESP32 variant on which all of this model's pins are valid
     # (some models default to high-numbered pins only present on the S3).
     choose_variant_with_pins(_pins_for(model, config))

tests/components/epaper_spi/test.esp32-s3-idf.yaml

@@ -76,6 +76,14 @@ display:
 
   - platform: epaper_spi
     model: seeed-reterminal-e1002
+  - platform: epaper_spi
+    model: seeed-reterminal-e1004
+    cs_pin: 33
+    cs1_pin: 34
+    dc_pin: 35
+    reset_pin: 36
+    busy_pin: 37
+    enable_pin: 39
   - platform: epaper_spi
     model: seeed-ee04-mono-4.26
     full_update_every: 10

tests/components/epaper_spi/validate-e1004.esp32-s3-idf.yaml

@@ -0,0 +1,38 @@
+esphome:
+  name: e1004-test
+  friendly_name: E1004 Test
+
+esp32:
+  board: esp32-s3-devkitc-1
+  variant: esp32s3
+  framework:
+    type: esp-idf
+
+psram:
+  mode: octal
+
+spi:
+  - id: epaper_spi_bus
+    clk_pin: GPIO7
+    mosi_pin: GPIO9
+
+display:
+  - platform: epaper_spi
+    spi_id: epaper_spi_bus
+    model: seeed-reterminal-e1004
+    update_interval: never
+    lambda: |-
+      it.fill(Color::WHITE);
+      it.rectangle(10, 10, it.get_width() - 20, it.get_height() - 20, Color::BLACK);
+      it.print(it.get_width() / 2, it.get_height() / 2, id(my_font), Color::BLACK, TextAlign::CENTER, "E1004 Test");
+      it.circle(100, 100, 30, Color(255, 0, 0));
+      it.circle(200, 100, 30, Color(0, 255, 0));
+      it.circle(300, 100, 30, Color(0, 0, 255));
+      it.circle(400, 100, 30, Color(255, 255, 0));
+
+font:
+  - file: "gfonts://Roboto"
+    id: my_font
+    size: 20
+
+logger: