diff --git a/res/configuration.toml b/res/configuration.toml
index 6bea404..d2e5292 100644
--- a/res/configuration.toml
+++ b/res/configuration.toml
@@ -7,6 +7,7 @@
   StartupMsg = "device Grove PI started"
   ReadMaxLimit = 256
   Timeout = 5000
+  CheckInterval = '10s'
 
 [Clients]
   [Clients.Data]