In Reply to: ultro sonics distance detector ! posted by mike on 08/10/01 at 3:10 AM:
Hi. In an earlier reply on the same subject I mentioned that the National LM1812 Ultrasonic Transceiver chip was a good choice for such a design. Unfortunately, it turned out that National had discontinued the chip and it was apparently unsvailable.
A reader in Mexico has E-Mailed me to advise that a Mexican supplier has some stock there @ $6.60.
The supplier is:
I can scan and forward you a copy of the original data sheets which contain a lot of useful application material.
Brian Snell (firstname.lastname@example.org)