diff --git a/test/test_uart.py b/test/test_uart.py
index 52fe0581..5a4d2dea 100644
--- a/test/test_uart.py
+++ b/test/test_uart.py
@@ -4,7 +4,7 @@
 
 
 @pytest.mark.parametrize(
-    "chip", ["esp32", "esp32s2", "esp32s3", "esp32c3", "esp32c6", "esp32h2"]
+    "chip", ["esp32", "esp32s2", "esp32s3", "esp32c3", "esp32c6", "esp32h2", "esp32p4"]
 )
 def test_uart(chip: str):
 
diff --git a/test/uart/diagram.esp32p4.json b/test/uart/diagram.esp32p4.json
new file mode 100644
index 00000000..f2803987
--- /dev/null
+++ b/test/uart/diagram.esp32p4.json
@@ -0,0 +1,20 @@
+{
+  "version": 1,
+  "author": "Uri Shaked",
+  "editor": "wokwi",
+  "parts": [
+    {
+      "type": "board-esp32-p4-function-ev",
+      "id": "esp",
+      "top": -18.32,
+      "left": -18.43,
+      "attrs": { "cpuFrequency": "32" }
+    }
+  ],
+  "connections": [
+    ["esp:37", "$serialMonitor:RX", "", []],
+    ["esp:38", "$serialMonitor:TX", "", []]
+  ],
+  "serialMonitor": { "display": "terminal" },
+  "dependencies": {}
+}