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Basic Stamp Based Altimeter - A method of determining altitude
is by use of barometric pressure; however, it is not done without
difficulty. The relationship of pressure vs. altitude is not a linear one,
it is actually a fairly complex one, which army came up with in
1930's. This is equation for calculating(added 4/05)
Basic Stamp Computer Eases Prototyping Hassles - 04/09/98 EDN-Design
Ideas.....Many of today's complex ICs use a common three-wire serial
interface to provide programming access. These ICs typically end up in
circuits that include a µC or a CPU, and the controller or CPU then has
the burden of programming the serially controlled.....several circuits
included, scroll the find this one..... [Design Idea by Med Dyer, Jabra
Corp, San Diego, CA]
Basic Stamp I & PC Relay Controller - This project shows you how to build a
relay controller using the Basic Stamp I interfaced to the PC serial port. The
Visual Basic 5 software developed for the interface lets you interact with the Basic
Stamp to turn ON/OFF up to (2) relays attached to the Basic Stamp I/O pins. As
shown below in the screen capture of PC-Relay, it's easy to select the desired com
port using the drop-down menu.....(electronic circuit added 4/05)
Bi-Directional Level Translator - Novel two transistor connection converts
5V logic signals to 3V logic signals without latchup. This flexible architecture
works for 1V to 12V conversions as well. Voted best of issue! .… [Jim Haggerman,
Hagerman Technology LLC]
Bridge Circuits - AN43 Linear Technology Subtitled "Marrying Gain and
Balance," this note covers signal conditioning circuits for various types of bridges.
Included are transducer bridges, AC bridges, Wien bridge oscillators, Schottky
bridges, and ors. Special attention is given to amplifier selection criteria. Appended
sections cover strain gauge transducers, understanding distortion measurements, and
historical perspectives on bridge readout mechanisms and Wein bridge oscillators.