1. For machines counting in mechanical form, the principle of gear rotation mechanical counting is adopted.
2. Skipping rope counter based on MCU control.
Digital counting frequency meter can directly count the number of pulses of the measured signal in unit time, and then display the frequency value in digital form.
The working principle is as follows:
Firstly, the data of acceleration changes during human jumping are collected by sensors. The sensor is a three-axis acceleration sensor, but we only collect the data of Z axis. The data is input into the microcontroller through P 1.0, and the microcontroller downloads and compiles through P3.0 and P3. 1 ports to process the data from the sensor. Only when the data of the sensor meets the requirements, the single chip microcomputer will count and display it on the LCD.
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I. Characteristics
Counting skipping has many unique benefits besides the general benefits of exercise. Skipping rope consumes 400 calories every half hour. It is a kind of bodybuilding exercise, which is of great help to the heart and lung system and other organs, coordination, posture and weight loss. Women have an advantage.
Second, the method of use
1. Tighten the rope clamp, loosen the ferrule and adjust the rope to the required length.
2. When the handle with the counter jumps forward, hold it with the right hand and turn the number forward. Hold the handle tightly and shake it horizontally, so that it can rotate flexibly and freely.
3, back to zero, press the back to zero key, and relax when all the words appear at zero.
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