Issue
148 November 2002
Ultrasonic
Homing Device
Start
•
Reveiver • Ear
Mounting • The Transmitter
• Software • Options
• Sources and PDF
Sources
& PDF
Download
the PDF of this article.
Tom Baraniak attended the
University of Wisconsin, Madison. Presently, he is the
Electronics and Lab Manager at Carleton College in Northfield,
Minnesota. As a kid, Tom built his first robot out of
orange crates and coffee cans. Today, his materials
are a bit more sophisticated. You may reach him at baraniak@spexotics.com.
PROJECT FILES
To download the code, go
to ftp.circuitcellar.com/pub/Circuit_Cellar/2002/148/.
REFERENCE
[1] A. Raynus, "Voltage
Comparator Forms Pulse Demodulator," EDN, November
1998.
RESOURCE
Burr-Brown Corp., "Single-supply,
Rail-to-Rail, Operational Amplifiers," PDS-1404C,
December 1997, www.burr-brown.com.
SOURCES
Ultrasonic transmitter
and receiver
Jameco Electronics (distributor)
(650) 592-8097
www.jameco.com
PIC12C672 Microcontroller
Microchip Technology, Inc.
(480) 899-9210
www.microchip.com
OPA2340 Op-amp
Texas Instruments, Inc.
(800) 336-5236
www.ti.com
