diff --git a/esphome/components/internal_temperature/internal_temperature_ln882x.cpp b/esphome/components/internal_temperature/internal_temperature_ln882x.cpp
new file mode 100644
index 0000000000..621fbed030
--- /dev/null
+++ b/esphome/components/internal_temperature/internal_temperature_ln882x.cpp
@@ -0,0 +1,24 @@
+#ifdef USE_LN882X
+
+#include "internal_temperature.h"
+
+extern "C" {
+uint16_t hal_adc_get_data(uint32_t adc_base, uint32_t ch);
+}
+
+namespace esphome::internal_temperature {
+
+void InternalTemperatureSensor::update() {
+  static constexpr uint32_t ADC_BASE = 0x40000800U;
+  static constexpr uint32_t ADC_CH0 = 1U;
+  static constexpr uint16_t ADC_MASK = 0xFFF;
+  static constexpr float ADC_TEMP_SCALE = 2.54f;
+  static constexpr float ADC_TEMP_OFFSET = 278.15f;
+  uint16_t raw = hal_adc_get_data(ADC_BASE, ADC_CH0);
+  float temperature = (raw & ADC_MASK) / ADC_TEMP_SCALE - ADC_TEMP_OFFSET;
+  this->publish_state(temperature);
+}
+
+}  // namespace esphome::internal_temperature
+
+#endif  // USE_LN882X
diff --git a/esphome/components/internal_temperature/sensor.py b/esphome/components/internal_temperature/sensor.py
index 6d79e08675..02730b6862 100644
--- a/esphome/components/internal_temperature/sensor.py
+++ b/esphome/components/internal_temperature/sensor.py
@@ -8,6 +8,7 @@ from esphome.const import (
     ENTITY_CATEGORY_DIAGNOSTIC,
     PLATFORM_BK72XX,
     PLATFORM_ESP32,
+    PLATFORM_LN882X,
     PLATFORM_NRF52,
     PLATFORM_RP2040,
     STATE_CLASS_MEASUREMENT,
@@ -30,7 +31,15 @@ CONFIG_SCHEMA = cv.All(
         state_class=STATE_CLASS_MEASUREMENT,
         entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
     ).extend(cv.polling_component_schema("60s")),
-    cv.only_on([PLATFORM_ESP32, PLATFORM_RP2040, PLATFORM_BK72XX, PLATFORM_NRF52]),
+    cv.only_on(
+        [
+            PLATFORM_ESP32,
+            PLATFORM_RP2040,
+            PLATFORM_BK72XX,
+            PLATFORM_NRF52,
+            PLATFORM_LN882X,
+        ]
+    ),
 )
 
 
@@ -53,6 +62,9 @@ FILTER_SOURCE_FILES = filter_source_files_from_platform(
         "internal_temperature_bk72xx.cpp": {
             PlatformFramework.BK72XX_ARDUINO,
         },
+        "internal_temperature_ln882x.cpp": {
+            PlatformFramework.LN882X_ARDUINO,
+        },
         "internal_temperature_zephyr.cpp": {PlatformFramework.NRF52_ZEPHYR},
     }
 )
diff --git a/esphome/components/spi/spi.cpp b/esphome/components/spi/spi.cpp
index 36344a6d38..20359135ba 100644
--- a/esphome/components/spi/spi.cpp
+++ b/esphome/components/spi/spi.cpp
@@ -68,7 +68,7 @@ void SPIComponent::dump_config() {
   LOG_PIN("  SDI Pin: ", this->sdi_pin_);
   LOG_PIN("  SDO Pin: ", this->sdo_pin_);
   for (size_t i = 0; i != this->data_pins_.size(); i++) {
-    ESP_LOGCONFIG(TAG, "  Data pin %u: GPIO%d", i, this->data_pins_[i]);
+    ESP_LOGCONFIG(TAG, "  Data pin %zu: GPIO%d", i, this->data_pins_[i]);
   }
   if (this->spi_bus_->is_hw()) {
     ESP_LOGCONFIG(TAG, "  Using HW SPI: %s", this->interface_name_);
@@ -118,4 +118,12 @@ uint16_t SPIDelegateBitBash::transfer_(uint16_t data, size_t num_bits) {
   return out_data;
 }
 
+#if !defined(USE_ESP32) && !defined(USE_ARDUINO)
+// Stub for unsupported platforms (host, Zephyr, etc.) - hardware SPI is unavailable
+SPIBus *SPIComponent::get_bus(SPIInterface interface, GPIOPin *clk, GPIOPin *sdo, GPIOPin *sdi,
+                              const std::vector<uint8_t> &data_pins) {
+  return nullptr;
+}
+#endif
+
 }  // namespace esphome::spi
diff --git a/esphome/components/spi/spi.h b/esphome/components/spi/spi.h
index 84c8bca267..dc538f4c41 100644
--- a/esphome/components/spi/spi.h
+++ b/esphome/components/spi/spi.h
@@ -23,9 +23,9 @@ using SPIInterface = SPIClassRP2040 *;
 using SPIInterface = SPIClass *;
 #endif
 
-#elif defined(CLANG_TIDY)
+#elif defined(USE_HOST) || defined(CLANG_TIDY)
 
-using SPIInterface = void *;  // Stub for platforms without SPI (e.g., Zephyr)
+using SPIInterface = void *;  // Stub for platforms without SPI (e.g., host, Zephyr)
 
 #endif  // USE_ESP32 / USE_ARDUINO
 
diff --git a/tests/components/internal_temperature/test.ln882x-ard.yaml b/tests/components/internal_temperature/test.ln882x-ard.yaml
new file mode 100644
index 0000000000..dade44d145
--- /dev/null
+++ b/tests/components/internal_temperature/test.ln882x-ard.yaml
@@ -0,0 +1 @@
+<<: !include common.yaml