diff --git a/src/main.cpp b/src/main.cpp
index 4e3763f..d07528a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -195,6 +195,11 @@ void setup()
   espmega.iot->registerCard(10);
 #endif
 
+// Input callbacks
+// pre-load the input buffers
+  ESP_LOGV("ISE IoT OS", "Pre-loading input buffers");
+  espmega.inputs.loop();
+
   // ------------ Climate Cards Initialization Routine ------------
   ESP_LOGD("ISE OS", "Setting up climate cards");