Acceleration inductive energy consumption pedometer
A technology of acceleration sensing and energy consumption, applied in the field of acceleration sensing energy consumption pedometers, can solve problems such as insufficient exercise, reduced calorie consumption, and physical decline
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[0021] The present invention will be further described below through specific examples.
[0022] The present invention adopts the ADXL202E chip of ANALOG Company as the sensor chip 1, and the chip pin configuration is as follows Figure 4 shown. The chip can measure both dynamic acceleration and static acceleration. Measuring range: ±2g. The ADXL202E chip is built into the mobile smart terminal and connected to the microprocessor (μP) of the mobile smart terminal. The circuit of the ADXL202E chip is as follows: Figure 5 shown. The connection of the eight pins of the chip is: V DD Connect 3V to 5.25V power supply; V DD and COM indirect capacitance C DC Play the role of decoupling, C DC Recommended value 0.1μF; X FILT , Y FILT connected to capacitor C X , C Y , and by C X , C Y The value to set the bandwidth of the low-pass filter; T2 connected to the resistor R SET ;X OUT and Y OUT The outputs in the X and Y directions are connected to a timer / timer port of a m...
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