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Poor Man’s Digital Counter Using
Pedometer There are many
occasions when you may want to count something electronically.
Perhaps it is car traffic on a street or items moving down an assembly
line. It might be the number of times a machine is activated or
maybe you want to count the number of people entering doorway.
Commercial counting modules do exist but if you want to use something
cheaper, you can modify a pedometer to do much the same thing....
Links to electronic circuits, electronic schematics, designs for engineers,
hobbyists, students & inventors:
PC Based Configurable Filter uses No Digital Potentiometers: 01/23/03 EDN Design Ideas / (added 1/05)
Modern instrumentation requires digital control signals. These signals come from a central microprocessor or, in modern context, the popular parallel or serial PC ports. In recent times,
digital potentiometers have eliminated the hassles from this interface for the analog section. Designers can replace the resistors of the analog design with digital potentiometers, thus
providing the necessary ......
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