diff --git a/static/index.html b/static/index.html
index c7b30a1..3d6ec5c 100644
--- a/static/index.html
+++ b/static/index.html
@@ -298,8 +298,10 @@ <h3>Advanced Users</h3>
         var img = new Image();
         img.src = `wiring_diagrams/${hardware}_${diagram_protocol}.png`;
         if(img.height !== 0){
+            console.log(`diagram: ${img.src}`);
             document.querySelector("#wiring_diagram").src = img.src;
         }else{
+            console.log(`img not found: ${img.src}`);
             document.querySelector("#wiring_diagram").src = "wiring_diagrams/v25iboard_secplus.png";
         }