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GigaDevice:基于GD32的指夹式血氧仪方案
Release time：2023-04-20
author：AMEYA360
source：网络
reading：4479
使用GD32E230C8T6作为主控MCU，是中国首款基于全新Arm Cortex-M23内核的通用微控制器产品，取代及提升传统的8位和16位MCU，并替代Cortex-M0/M0+产品，带来更具性价比的解决方案。该系列MCU不仅拥有超值的高速处理能力，还提供了丰富的接口资源来增强连接性。
整个血氧仪通过2节AAA电池供电，内部ADC可以实时监测电池电量，开机和设置参数均通过一个按键完成，蜂鸣器用于开机提示和报警提示。发射管通过PWM驱动，接收管的信号通过ADC采样。OLED通过SPI接口与主控相连接，用于显示各种参数和波形信息。
方案优势
显示：采用双色OLED，支持四向切换显示
报警：声光报警、上下限可调
电池：2节AAA电池
自动关机：8秒无操作自动关机
体积小、重量轻、携带方便
产品规格：
血氧饱和度测量范围：70%-99%
血氧饱和度测量精度：80%-99%，范围±2%，≤70%，精度无定义血氧饱和度分辨率：血氧饱和度±1%脉率测量范围：30-240BPM
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