diff --git a/include/pinlist.h b/include/pinlist.h
index 109ca24..b64f7e7 100644
--- a/include/pinlist.h
+++ b/include/pinlist.h
@@ -1,3 +1,4 @@
+#pragma once
 
 enum RO // relay output channels
 {
diff --git a/src/main.cpp b/src/main.cpp
index 8b5a470..d6b009c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -24,6 +24,11 @@ void setup()
   LOG_ATTACH_SERIAL(Serial);
   LOG_SET_LEVEL(DebugLogLevel::LVL_INFO);
   conf.init(); // read the configuration from internal flash
+  LOG_INFO("ESP32 Chip:", ESP.getChipModel());
+  LOG_INFO("ESP32 PSram:", ESP.getPsramSize());
+  LOG_INFO("ESP32 Flash:", ESP.getFlashChipSize());
+  LOG_INFO("ESP32 Heap:", ESP.getHeapSize());
+  LOG_INFO("ESP32 Sketch:", ESP.getFreeSketchSpace());
 }
 
 void loop()