diff --git a/esphome/components/mipi_spi/models/waveshare.py b/esphome/components/mipi_spi/models/waveshare.py
index 0caae5b939..bdd0c3c90b 100644
--- a/esphome/components/mipi_spi/models/waveshare.py
+++ b/esphome/components/mipi_spi/models/waveshare.py
@@ -203,6 +203,54 @@ AXS15231.extend(
     requires={"psram"},
 )
 
+# Init sequence and pins taken from the vendor demo:
+# "ESP32-S3-Touch-LCD-3.5B-Demo/Arduino/examples/09_lvgl_arduino_v8"
+# The panel has no reset line (demo passes RST = -1); the sleep-out, display-on
+# and first RAM write are issued by the framework, so they are omitted here.
+# fmt: off
+AXS15231.extend(
+    "WAVESHARE-ESP32-S3-TOUCH-LCD-3.5B",
+    width=320,
+    height=480,
+    # Vendor demo runs the AXS15231B at 32MHz; the ESP32 SPI clock cannot hit
+    # that exactly, data sheet says max 50MHz, so use 40MHz (proven on the same controller, JC3248W535)
+    data_rate="40MHz",
+    cs_pin=12,
+    requires={"psram"},
+    initsequence=(
+        (0xBB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5A, 0xA5),
+        (0xA0, 0xC0, 0x10, 0x00, 0x02, 0x00, 0x00, 0x04, 0x3F, 0x20, 0x05, 0x3F, 0x3F, 0x00, 0x00, 0x00, 0x00, 0x00),
+        (0xA2, 0x30, 0x3C, 0x24, 0x14, 0xD0, 0x20, 0xFF, 0xE0, 0x40, 0x19, 0x80, 0x80, 0x80, 0x20, 0xF9, 0x10, 0x02, 0xFF, 0xFF, 0xF0, 0x90, 0x01, 0x32, 0xA0, 0x91, 0xE0, 0x20, 0x7F, 0xFF, 0x00, 0x5A),
+        (0xD0, 0xE0, 0x40, 0x51, 0x24, 0x08, 0x05, 0x10, 0x01, 0x20, 0x15, 0xC2, 0x42, 0x22, 0x22, 0xAA, 0x03, 0x10, 0x12, 0x60, 0x14, 0x1E, 0x51, 0x15, 0x00, 0x8A, 0x20, 0x00, 0x03, 0x3A, 0x12),
+        (0xA3, 0xA0, 0x06, 0xAA, 0x00, 0x08, 0x02, 0x0A, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x00, 0x55, 0x55),
+        (0xC1, 0x31, 0x04, 0x02, 0x02, 0x71, 0x05, 0x24, 0x55, 0x02, 0x00, 0x41, 0x00, 0x53, 0xFF, 0xFF, 0xFF, 0x4F, 0x52, 0x00, 0x4F, 0x52, 0x00, 0x45, 0x3B, 0x0B, 0x02, 0x0D, 0x00, 0xFF, 0x40),
+        (0xC3, 0x00, 0x00, 0x00, 0x50, 0x03, 0x00, 0x00, 0x00, 0x01, 0x80, 0x01),
+        (0xC4, 0x00, 0x24, 0x33, 0x80, 0x00, 0xEA, 0x64, 0x32, 0xC8, 0x64, 0xC8, 0x32, 0x90, 0x90, 0x11, 0x06, 0xDC, 0xFA, 0x00, 0x00, 0x80, 0xFE, 0x10, 0x10, 0x00, 0x0A, 0x0A, 0x44, 0x50),
+        (0xC5, 0x18, 0x00, 0x00, 0x03, 0xFE, 0x3A, 0x4A, 0x20, 0x30, 0x10, 0x88, 0xDE, 0x0D, 0x08, 0x0F, 0x0F, 0x01, 0x3A, 0x4A, 0x20, 0x10, 0x10, 0x00),
+        (0xC6, 0x05, 0x0A, 0x05, 0x0A, 0x00, 0xE0, 0x2E, 0x0B, 0x12, 0x22, 0x12, 0x22, 0x01, 0x03, 0x00, 0x3F, 0x6A, 0x18, 0xC8, 0x22),
+        (0xC7, 0x50, 0x32, 0x28, 0x00, 0xA2, 0x80, 0x8F, 0x00, 0x80, 0xFF, 0x07, 0x11, 0x9C, 0x67, 0xFF, 0x24, 0x0C, 0x0D, 0x0E, 0x0F),
+        (0xC9, 0x33, 0x44, 0x44, 0x01),
+        (0xCF, 0x2C, 0x1E, 0x88, 0x58, 0x13, 0x18, 0x56, 0x18, 0x1E, 0x68, 0x88, 0x00, 0x65, 0x09, 0x22, 0xC4, 0x0C, 0x77, 0x22, 0x44, 0xAA, 0x55, 0x08, 0x08, 0x12, 0xA0, 0x08),
+        (0xD5, 0x40, 0x8E, 0x8D, 0x01, 0x35, 0x04, 0x92, 0x74, 0x04, 0x92, 0x74, 0x04, 0x08, 0x6A, 0x04, 0x46, 0x03, 0x03, 0x03, 0x03, 0x82, 0x01, 0x03, 0x00, 0xE0, 0x51, 0xA1, 0x00, 0x00, 0x00),
+        (0xD6, 0x10, 0x32, 0x54, 0x76, 0x98, 0xBA, 0xDC, 0xFE, 0x93, 0x00, 0x01, 0x83, 0x07, 0x07, 0x00, 0x07, 0x07, 0x00, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x00, 0x84, 0x00, 0x20, 0x01, 0x00),
+        (0xD7, 0x03, 0x01, 0x0B, 0x09, 0x0F, 0x0D, 0x1E, 0x1F, 0x18, 0x1D, 0x1F, 0x19, 0x40, 0x8E, 0x04, 0x00, 0x20, 0xA0, 0x1F),
+        (0xD8, 0x02, 0x00, 0x0A, 0x08, 0x0E, 0x0C, 0x1E, 0x1F, 0x18, 0x1D, 0x1F, 0x19),
+        (0xD9, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F),
+        (0xDD, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F),
+        (0xDF, 0x44, 0x73, 0x4B, 0x69, 0x00, 0x0A, 0x02, 0x90),
+        (0xE0, 0x3B, 0x28, 0x10, 0x16, 0x0C, 0x06, 0x11, 0x28, 0x5C, 0x21, 0x0D, 0x35, 0x13, 0x2C, 0x33, 0x28, 0x0D),
+        (0xE1, 0x37, 0x28, 0x10, 0x16, 0x0B, 0x06, 0x11, 0x28, 0x5C, 0x21, 0x0D, 0x35, 0x14, 0x2C, 0x33, 0x28, 0x0F),
+        (0xE2, 0x3B, 0x07, 0x12, 0x18, 0x0E, 0x0D, 0x17, 0x35, 0x44, 0x32, 0x0C, 0x14, 0x14, 0x36, 0x3A, 0x2F, 0x0D),
+        (0xE3, 0x37, 0x07, 0x12, 0x18, 0x0E, 0x0D, 0x17, 0x35, 0x44, 0x32, 0x0C, 0x14, 0x14, 0x36, 0x32, 0x2F, 0x0F),
+        (0xE4, 0x3B, 0x07, 0x12, 0x18, 0x0E, 0x0D, 0x17, 0x39, 0x44, 0x2E, 0x0C, 0x14, 0x14, 0x36, 0x3A, 0x2F, 0x0D),
+        (0xE5, 0x37, 0x07, 0x12, 0x18, 0x0E, 0x0D, 0x17, 0x39, 0x44, 0x2E, 0x0C, 0x14, 0x14, 0x36, 0x3A, 0x2F, 0x0F),
+        (0xA4, 0x85, 0x85, 0x95, 0x82, 0xAF, 0xAA, 0xAA, 0x80, 0x10, 0x30, 0x40, 0x40, 0x20, 0xFF, 0x60, 0x30),
+        (0xA4, 0x85, 0x85, 0x95, 0x85),
+        (0xBB, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00),
+    ),
+)
+# fmt: on
+
 # Waveshare 1.83-v2
 #
 # Do not use on 1.83-v1: Vendor warning on different chip!