diff --git a/heating-temperature-probes.yaml b/heating-temperature-probes.yaml
index de0cfe5..d2fd5ae 100644
--- a/heating-temperature-probes.yaml
+++ b/heating-temperature-probes.yaml
@@ -34,6 +34,10 @@ captive_portal:
 web_server:
   port: 80
 
+one_wire:
+  - platform: gpio
+    pin: GPIO04
+
 sensor:
   # WiFi Signal
   - platform: wifi_signal