I was wondering if anyone here had ever dealt with a 14C01 Ultrasonic sensor from Futurlec.com? This is a two-wire weatherproof sensor that is meant for vehicle backing systems to detect objects before you run into them. Here's the link:
There's a sample circuit in Figure 4, but I'm having some difficulty deciphering it. Is the "IFT Turn ratio 1:7" a transformer? My searches aren't turning up a suitable component for this. Also, can someone explain the TL084A to me? Everything else is self-explanatory, though.
I haven't found any Arduino-related code for this component, but I'll likely try the PulseIn function once I get it wired up (unless someone has something better in mind.)