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Technique Makes Low Cost PC-Board ShieldS - 02/19/04 EDN Design Ideas
/ (added 1/05] Many pc-board assemblies require shields to reduce
susceptibility to interference from electromagnetic fields. A classic example is a
radio receiver, in which the front end usually needs high isolation from the
tuning synthesizer. Historically, shields for low-volume or low-cost applications
involve trade-offs.... EDN is migrating links. This link is not verified.
Google the "title" EDN for new link.
Temperature Measurement - Measures temperature via SMT160-30, shows it
on LCD and communicates with RS232 (sends values of temperature to terminal
(added 6/07)
The Relay Sub Board - Use nine pieces of hookup wire (or a piece of
ribbon cable) to connect corresponding points on the I/O Demonstration Board to
the Relay Sub Board. Connect 12 volts DC (smoothed) to the power input points on
the I/O Demonstration Board. Solder in as many relays as you intend to use, each
with its associated LED, resistor and 1N914 signal diode….(Circuit design added
08/08)
