diff --git a/main/Kconfig.projbuild b/main/Kconfig.projbuild
index 63c2fdc..2a5ea5f 100644
--- a/main/Kconfig.projbuild
+++ b/main/Kconfig.projbuild
@@ -12,7 +12,7 @@ menu "Solar controller configuration"
     config SC_SAMPLE_PERIOD
         int "Number of seconds between readings."
         range 1 3600
-        default 1
+        default 30
         help
             Number of seconds between readings.