ARTERY Blood Pressure Monitor Application Solution Based on AT32 MCU

Blood Pressure Monitor Application Solution Based on AT32 MCU

Traditional device data transmission relies on wired USB to transmit information to the host, which often faces problems such as disorderly placement of multiple cables, limited wiring space and limited control range. Based on the accelerating speed of technological innovation, the introduction of new technologies, and the popularization of the concept of IoT, most devices have gradually changed from wired to wireless.
The AT32F415 and wireless AT32WB415 series use a powerful 32-bit ARM Cortex-M4 core, and integrate a variety of communication interfaces on the SoC single-chip system, such as USB OTG, UART, SPI, I2C, SDIO, etc. With RF radio frequency for information transmission, the USB HID wireless transmission function is realized, which can help users quickly complete information transmission and maintain file integrity without installing additional drivers. This article will introduce the application of AT32 MCU on USB HID by taking the customer's actual application case "Sphygmomanometer imported into AT32F415/AT32WB415 series MCU connected to USB HID application" as an example.

AT32 MCU provides a high-precision and cost-effective blood pressure monitor application solution. When the blood pressure monitor measures pulse rate, systolic blood pressure and diastolic blood pressure, the pressure sensor accurately detects the blood pressure signal strength, as shown in the figure below.

Import AT32 MCU with RF radio frequency to realize wireless transmission

Features of AT32F415 / AT32WB415 Series Connecting USB HID Application Solution

Using ARM Cortex-M4 core, the main frequency is up to 150MHz, built-in large-capacity 256KB Flash and 32KB SRAM, and provides software development tools for product system calibration, update and storage of user information.

Additional advantages of introducing sphygmomanometer products into AT32F415 / AT32WB415 series

Supports 12-bit high-precision ADC and CMP, distinguishes the cuff and pulse wave signal from the signal collected by the pressure sensor, and accurately extracts the pulse wave signal. After the filtering circuit, it is output to the CPU through the A/D conversion circuit without adding additional components. , greatly reducing the development cost and shortening the mass production time.

Support high-speed GPIO/SPI to drive the LCD display, and display the status of blood pressure measurement readings smoothly.