question interfacing a plain ultrasonic sensor

Forum 2005-2010 (read only) Hardware Interfacing
1

Hello,

I have bought two ultrasonic sensors that do not look like the ones normally interfaced by arduino users. Here's the link to the data sheet: http://www.produktinfo.conrad.com/datenblaetter/525000-549999/541348-da-01-en-OFFENE_ULTRASCHALLSENSOREN_A_16P_T_R.pdf

As they only have two pins, one for plus and one for minus, I am wondering how to wire them up in order to bring the ping example to life.

Can anybody help me further?

Thanks,
Fritz

2

well, this is nothing like the ping except they are both ultrasonic. This is just the transducer. in order to measure distance, youll have to create a circuit to generate a loud ultrasonic pulse, then another one that is tuned to receive the pulse without triggering from noise.

there was a thread about this a while ago

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1224198029

looks like they came up with a solution

3

You're better off buying a complete unit as they are only ~$25US.

Sparkfun and others also sell them.

I have a few and they work well and are simple to use (ASCII output or analogue voltage)