Ultrasonic Transducer Transmitter\Reciever
July 23, 2012
I am trying to make an ultransonic obstacle sensor, I just need to know if the Transmitter and reciever have polarity? And if so how do I tell which is the Cathode and which is the anode?
The transmitter and reciever I have are the following.
I have checked the datasheet but there is no indication of polarity, also tried google but nothing cam back (maybe just me using the incorrect key words)
Any help would be greatly appreciated.