Heart Hat

MAX30102 是一款完整的脉搏血氧和心率传感器系统解决方案，专为满足可穿戴设备的严苛需求而设计。

支持以下产品：

MicroPython 应用示例

# SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
#
# SPDX-License-Identifier: MIT

import os, sys, io
import M5
from M5 import *
from hardware import *
from hat import HeartHat


Heart = None
SPO2 = None
label0 = None
label1 = None
i2c0 = None
hat_heart_0 = None


def setup():
    global Heart, SPO2, label0, label1, i2c0, hat_heart_0

    M5.begin()
    Heart = Widgets.Label("Heart", 1, 2, 1.0, 0xFFFFFF, 0x222222, Widgets.FONTS.DejaVu18)
    SPO2 = Widgets.Label("SPO2", 3, 122, 1.0, 0xFFFFFF, 0x222222, Widgets.FONTS.DejaVu18)
    label0 = Widgets.Label("0", 5, 45, 1.0, 0xFFFFFF, 0x222222, Widgets.FONTS.DejaVu40)
    label1 = Widgets.Label("0", 7, 169, 1.0, 0xFFFFFF, 0x222222, Widgets.FONTS.DejaVu40)

    i2c0 = I2C(0, scl=Pin(26), sda=Pin(0), freq=100000)
    hat_heart_0 = HeartHat(i2c0, 0x57)
    hat_heart_0.start()


def loop():
    global Heart, SPO2, label0, label1, i2c0, hat_heart_0
    M5.update()
    label0.setText(str(hat_heart_0.get_heart_rate()))
    label1.setText(str(hat_heart_0.get_spo2()))


if __name__ == "__main__":
    try:
        setup()
        while True:
            loop()
    except (Exception, KeyboardInterrupt) as e:
        try:
            from utility import print_error_msg

            print_error_msg(e)
        except ImportError:
            print("please update to latest firmware")

UiFlow2 应用示例

stickc_heart_example.m5f2

class HeartHat

Constructors

class HeartHat(i2c, address)

初始化 HeartHat。

i2c：要使用的 I2C 端口。
address：HeartHat 的 I2C 地址。

UIFLOW2:

Methods

HeartHat.stop()

停止 HeartHat。

UIFLOW2:

HeartHat.start()

启动 HeartHat。

UIFLOW2:

HeartHat.deinit()

反初始化 HeartHat。

UIFLOW2:

HeartHat.get_heart_rate()

获取心率。

UIFLOW2:

HeartHat.get_spo2()

获取 SpO2。

UIFLOW2:

HeartHat.get_ir()

获取 IR 值。

UIFLOW2:

HeartHat.get_red()

获取红色值。

UIFLOW2:

HeartHat.set_mode(mode)

设置 HeartHat 的模式。

参数:: mode (int) – HeartHat 的检测模式。选项：- HeartHat.MODE_HR_ONLY：仅心率 - HeartHat.MODE_SPO2_HR：心率和 SpO2

UIFLOW2:

HeartHat.set_led_current(led_current)

设置 HeartHat 的 LED 电流。

参数:: led_current (int) – HeartHat 的 LED 电流。选项：- HeartHat.LED_CURRENT_0MA：0 mA - HeartHat.LED_CURRENT_4_4MA：4.4 mA - HeartHat.LED_CURRENT_7_6MA：7.6 mA - HeartHat.LED_CURRENT_11MA：11 mA - HeartHat.LED_CURRENT_14_2MA：14.2 mA - HeartHat.LED_CURRENT_17_4MA：17.4 mA - HeartHat.LED_CURRENT_20_8MA：20.8 mA - HeartHat.LED_CURRENT_24MA：24 mA - HeartHat.LED_CURRENT_27_1MA：27.1 mA - HeartHat.LED_CURRENT_30_6MA：30.6 mA - HeartHat.LED_CURRENT_33_8MA：33.8 mA - HeartHat.LED_CURRENT_37MA：37 mA - HeartHat.LED_CURRENT_40_2MA：40.2 mA - HeartHat.LED_CURRENT_43_6MA：43.6 mA - HeartHat.LED_CURRENT_46_8MA：46.8 mA - HeartHat.LED_CURRENT_50MA：50 mA

UIFLOW2:

HeartHat.set_pulse_width(pulse_width)

设置 HeartHat 的脉冲宽度。

参数:: pulse_width (int) – HeartHat 的脉冲宽度。可选项：- HeartHat.PULSE_WIDTH_200US_ADC_13：200us - HeartHat.PULSE_WIDTH_400US_ADC_14：400us - HeartHat.PULSE_WIDTH_800US_ADC_15：800us - HeartHat.PULSE_WIDTH_1600US_ADC_16：1600us

UIFLOW2:

HeartHat.set_sampling_rate(sampling_rate)

设置 HeartHat 的采样率。

参数:: sampling_rate (int) – HeartHat 的采样率。选项：- HeartHat.SAMPLING_RATE_50HZ：50Hz - HeartHat.SAMPLING_RATE_100HZ：100Hz - HeartHat.SAMPLING_RATE_167HZ：167Hz - HeartHat.SAMPLING_RATE_200HZ：200Hz - HeartHat.SAMPLING_RATE_400HZ：400Hz - HeartHat.SAMPLING_RATE_600HZ：600Hz - HeartHat.SAMPLING_RATE_800HZ：800Hz - HeartHat.SAMPLING_RATE_1000HZ：1000Hz

UIFLOW2:

Constants

HeartHat.MODE_HR_ONLY: 仅检测心率。

HeartHat.MODE_SPO2_HR: 检测心率和血氧饱和度。