diff --git a/device.go b/device.go
index c5f57061..8a15ac98 100644
--- a/device.go
+++ b/device.go
@@ -17,6 +17,11 @@ func NewDevice(driver interface{}, r *Robot) *Device {
 	d := new(Device)
 	d.Name = reflect.ValueOf(driver).Elem().FieldByName("Name").String()
 	d.Robot = r
+	interval := reflect.ValueOf(driver).Elem().FieldByName("Interval").String()
+	if interval == "" {
+		interval = "0.1s"
+	}
+	reflect.ValueOf(driver).Elem().FieldByName("Interval").SetString(interval)
 	d.Driver = driver
 	return d
 }