@@ -4,7 +4,7 @@ The Helena robot is based on a Pioneer 3 AT platform
In addition to the standard Pioneer sensors (sonars and bumpers), provides:
* Two laser range sensors Hokuyo UTM-30LX [hokuyo](https://www.hokuyo-aut.jp/search/single.php?serial=169)
* Two scanning range finders: [Hokuyo UTM-30LX (usb)](https://www.hokuyo-aut.jp/search/single.php?serial=169), and [Hokuyo UTM-30LX-EW (eth)](https://www.hokuyo-aut.jp/search/single.php?serial=170)
These sensors are mainly used for navigation and mapping purposes.
