As people's living standards continue to improve, we have also undergone great changes in diet, irregular diet is a very common phenomenon. This leads to the body is in an unhealthy state, so can always pay attention to the state of human health, can effectively ensure human health. Pulse is a very important parameter in health condition detection data. In this paper, a pulse monitoring circuit is designed, which can realize the lcd display control function, pulse detection function, key function and alarm function. The application LCD1602 achieves the data display design. The pulse detection design is achieved by applying photoelectric sensors. Apply the buzzer to reach the alarm design. The system can detect the pulse data of human health status, and can determine whether the pulse of the human body is within the normal range, if the pulse of the human body exceeds the normal range, then the sound alarm prompt. The body's pulse range threshold can be adjusted by pressing a button. Pulse data is now LCD1602. Finally, the simulation results show that the system can effectively monitor the pulse.
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