From bb6877fc2cbe6892b8c191716839aa61fc6f6fb7 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Wed, 8 Oct 2025 11:27:11 -1000
Subject: [PATCH] common

---
 .../common/uart/esp32-c3-idf.yaml                   | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 tests/test_build_components/common/uart/esp32-c3-idf.yaml

diff --git a/tests/test_build_components/common/uart/esp32-c3-idf.yaml b/tests/test_build_components/common/uart/esp32-c3-idf.yaml
new file mode 100644
index 0000000000..944aa013dd
--- /dev/null
+++ b/tests/test_build_components/common/uart/esp32-c3-idf.yaml
@@ -0,0 +1,13 @@
+# Common UART configuration for ESP32-C3 IDF tests
+# Provides a shared UART bus that components can use
+# Components will auto-use this bus if they don't specify uart_id
+
+substitutions:
+  tx_pin: GPIO20
+  rx_pin: GPIO21
+
+uart:
+  - id: uart_bus
+    tx_pin: ${tx_pin}
+    rx_pin: ${rx_pin}
+    baud_rate: 9600