diff --git a/firmware/esp32/overland-controller/config.h b/firmware/esp32/overland-controller/config.h
index 6192a43..9b20f0b 100644
--- a/firmware/esp32/overland-controller/config.h
+++ b/firmware/esp32/overland-controller/config.h
@@ -14,7 +14,7 @@
 #define RELAY_SHIFT_REGISTER_PIN 255
 
 // GPIO4 is used by the LilyGO relay shift-register OE pin.
-#define ONEWIRE_PIN 21
+#define ONEWIRE_PIN 15
 
 #define IGNITION_PIN 34
 
diff --git a/firmware/esp32/overland-controller/overland-controller.ino b/firmware/esp32/overland-controller/overland-controller.ino
index 2ca2865..a361dfe 100644
--- a/firmware/esp32/overland-controller/overland-controller.ino
+++ b/firmware/esp32/overland-controller/overland-controller.ino
@@ -1509,6 +1509,9 @@ setInterval(load,3000);
 
 WebServer server(80);
 
+unsigned long lastSensorUpdate = 0;
+const unsigned long SENSOR_INTERVAL = 5000;
+
 #define API_V1(path) "/api/v1" path
 
 int findTempConfigIndexById(const String& id) {