[ Linkit Smart 7688 ] 傳送MAX30100 Sensor Data 到 Google Firebase

前置準備作業

比照這篇([ Linkit Smart 7688 ] 傳送MAX30100 Sensor Data 到 MediaTek Cloud Sandbox (MCS))配置

Google Firebase 端

1.到 Google 網站申請帳號

2. 點擊 建立新專案

3.點擊 Realtime Database，上方的規則

4. 將 read 與 write 設成 true 並點擊上方的 發佈

Linkit Smart 7688 Duo — MCU ( Arduino ) 端

1.透過 MCU 讀取 Sensor Data

#include <Arduino.h>

#include <Bridge.h>

#include <Wire.h>

#include “MAX30100_PulseOximeter.h”

#define REPORTING_PERIOD_MS 1000

PulseOximeter pox;

uint32_t tsLastReport = 0;

void onBeatDetected()

{

Serial.println(“Beat!”);

}

void setup()

{

Serial.begin(115200);

Bridge.begin();

Serial.print(“Initializing pulse oximeter..”);

if (!pox.begin()) {

Serial.println(“FAILED”);

for(;;);

} else {

Serial.println(“SUCCESS”);

}

pox.setOnBeatDetectedCallback(onBeatDetected);

}

void loop()

{

pox.update();

float h = pox.getHeartRate();

float s = pox.getSpO2();

if (millis() — tsLastReport > REPORTING_PERIOD_MS) {

Serial.print(“Heart rate:”);

Serial.print(h);

Serial.print(“bpm / SpO2:”);

Serial.print(s);

Serial.println(“%”);

tsLastReport = millis();

}

while(h+s > 0){

Bridge.put(“Heart rate”, String(h));

Bridge.put(“SpO2”, String(s));

break;

}

}

Linkit Smart 7688 Duo — MPU ( Python ) 端 — Publish

1.透過 Python 讀取 MCU Sensor Data

import sys

import time

import datetime

import requests

import json

firebase_url = ‘https://myiot-aff84.firebaseio.com/'

temperature_location = ‘Taipei’;

t = time.time();

date = datetime.datetime.fromtimestamp(t).strftime(‘%Y%m%d%H%M%S’)

sys.path.insert(0, ‘/usr/lib/python2.7/bridge/’)

from bridgeclient import BridgeClient as bridgeclient

value = bridgeclient()

while(True):

h0 = value.get(“Heart rate”)

s0 = value.get(“SpO2”)

print(date + ‘,’ + temperature_location + ‘,’ + str(s0) + ‘,’ + str(h0))

data = {‘date’:date,’SpO2':s0,’Heart rate’:h0}

result = requests.post(firebase_url + ‘/’ + temperature_location + ‘/SpO2.json’, data=json.dumps(data))

print(‘Status Code = ‘ + str(result.status_code) + ‘, Response = ‘ + result.text)

time.sleep(5)

2.將 Python Code 傳送到 Linkit Smart 7688 Duo

3.安裝相關套件於 Linkit Smart 7688 Duo

opkg update  
uci set yunbridge.config.disabled=0  
uci commit  
reboot

4.執行剛傳到 Linkit Smart 7688 Duo 中的 Python Code

5.Console 執行畫面