Bike speed system design based on single chip
ABSTRACT
With the developing of people’s life, the bicycle is not only the universal tool of
transportation and substitute for walking, but bees the first choice of entertainment and
exercising. The bicycle mileage/speed can fulfill the basic need of people’s life, so that
they can learn the speed and the mileage of the bicycle. In this paper, the bicycle
mileage/speed design based on the Hall element is elaborated. By AT89C52 as kernel,
using A44E Hall element to measure revolution, the measure and statistic are achieved.
The range information is saved by 24C02 when the power is off, the bicycle speed can be
displayed on LED. In this article, the hardware circuit and software design of bicycle
mileage/speed instrument are introduced in detail. About the hardware, the pulse
number is transmitted of one cycle of the bicycle into Single Chip Microputer system.
Then the signal processed by Single Chip Microputer system is sent to display scream.
About the software, in assemble language; the program is designed in the mode of
modules. The system has simple hardware, mon sub-program, and meets the demand of
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