diff --git a/automations/s3r-rooktest.yaml b/automations/s3r-rooktest.yaml
new file mode 100644
index 0000000..7bc398a
--- /dev/null
+++ b/automations/s3r-rooktest.yaml
@@ -0,0 +1,14 @@
+# S3R rooktest: gesproken melding bij zonsondergang.
+# Vereist: media_player van de S3R + tts.piper uit de NL-pipeline.
+automation:
+  - alias: "S3R rooktest bij zonsondergang"
+    trigger:
+      - platform: sun
+        event: sunset
+    action:
+      - service: tts.speak
+        target:
+          entity_id: tts.piper
+        data:
+          media_player_entity_id: media_player.atom_echo_s3r_voice_assistant
+          message: "De zon is onder. Alle systemen nominaal."