Let's Make Robots!


Waterproof ultrasonic sensor?

Can I unsolder the transducers from the Parallax PING sensor and replace them by these ones: http://www.parallax.com/Store/Sensors/ObjectDetection/tabid/176/ProductID/755/List/0/Default.aspx?SortField=ProductName,ProductName? They operate at the same frequency. Also, why does the PING sensor have two transducers? I guess one is a transducer and the other is a receiver, but is it the same part?