diff --git a/src/main.cpp b/src/main.cpp
index 3daa273..049f450 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -205,8 +205,8 @@ void setup() {
   blind1.length_clear=50;
   blind1.length_opaque=74;
   blind1.sense_clear_lower=40;
-  blind1.sense_clear_upper=200;
-  blind1.sense_opaque_lower=400;
+  blind1.sense_clear_upper=150;
+  blind1.sense_opaque_lower=280;
   blind1.sense_opaque_upper=800;
   blind1.sense_end_lower=850;
   blind1.sense_end_upper=1024;
@@ -224,8 +224,8 @@ void setup() {
   blind2.length_clear=50;
   blind2.length_opaque=74;
   blind2.sense_clear_lower=40;
-  blind2.sense_clear_upper=200;
-  blind2.sense_opaque_lower=400;
+  blind2.sense_clear_upper=150;
+  blind2.sense_opaque_lower=280;
   blind2.sense_opaque_upper=800;
   blind2.sense_end_lower=850;
   blind2.sense_end_upper=1024;