With the development of the Internet of Things technology, wearable product technology has been widely used. Among them, the wearable health detector can detect various major physiological indicators of the human body anytime and anywhere, and issue an alarm when the indicator is abnormal, and transmit the monitoring information wirelessly. Go to professional equipment or personal mobile phones. Various wearable health detectors have appeared on the market, including heart rate monitors, blood pressure monitors, fat content testers, sleep monitors, etc. This article mainly introduces the application of CypressPSoCBLE on wearable heart rate monitors. Heart rate is the number of heart beats per unit time. It is an important parameter that reflects whether the heart is working properly. At the same time, the heart rate value is also an important indicator to measure the intensity of physical labor and the intensity of mental work. Therefore, it is necessary to design a heart rate tester that can be worn at any time, can record, display and store the heart rate value for a long time, can communicate with the mobile phone Bluetooth and has strong anti-interference ability, and can alarm the heart rate beyond the normal range. . Designing heart rate monitor products mainly encounters the following problems: 1. It requires low-power Bluetooth communication and mobile phone to exchange information, timely feedback to the user of the heart rate information of the test, and allows the user to make relevant settings through the mobile phone; 2, need to use AFE (analog front end) circuit and filter circuit to measure the heart rate signal, the sampling accuracy of AD has a greater impact on the accuracy of the heart rate signal; 3, need to provide customers with user button interface, such as capacitive touch buttons; 4. It is necessary to provide a segment code LCD display to display the measured heart rate value; 5, need to achieve low power consumption to extend the standby time of the product, so that it can be powered by button batteries. CYPRESS's PSoCBLE family of products addresses the issues and needs of these designs. PSoC? 4 is a scalable and reconfigurable platform architecture that includes ARM? Cortex? -M0CPU programmable embedded system controller. It combines programmable, reconfigurable analog and digital blocks with flexible automated routing resources. Based on the platform, the PSoCBLE family integrates low-power Bluetooth (referred to as BLE, also known as BluetoothSmart) microcontrollers, wireless modules and subsystems. Other features include digitally programmable logic, high performance analog-to-digital conversion (ADC), comparator mode op amps, and standard communication and timing peripherals. The following is a block diagram of the PSoCBLE heart rate monitor solution. The PSoCBLE family of products provides an easy-to-implement single-chip BLE solution for heart rate monitors, as well as a standard heart rate test profile for developers' reference. Programmable operational amplifiers and SARADCs are available on-chip for heart rate signal detection and filtering. The product integrates CapSense user interfaces for capacitive touch buttons, sliders and trackpads, as well as an integrated LCD segment LCD driver for heart rate signals. Five flexible, configurable, low-power modes are available for low-power applications to extend product standby time. In addition, the BALUN circuit is integrated inside the product to make the antenna design simpler. In addition, graphical visualization of PSoCCreator software provides developers with a friendly, easy-to-use development environment that dramatically reduces developer development time and speeds time-to-market. In summary, the CYPRESSPSoCBLE series of products can provide a perfect heart rate monitor solution, single-chip solution product application, not only meet the actual needs of the product, but also save development costs and development cycle. Aluminum Frame LV 3PH Asynchronous Motor Aluminum Frame Lv 3Ph Asynchronous Motor,Three-Phase Asynchronous Motor,3 Phase Asynchronous Induction Motor,Aluminum Frame Three Induction Motor Yizheng Beide Material Co., Ltd. , https://www.beidevendor.com