Ambient_obniz_BME280_2.js

const Obniz = require("obniz");
const ambient = require('ambient-lib');
const obniz = new Obniz("obniz-ID");

const channelId = 100;
const writeKey = 'writeKey';

// 熱中症の危険度判定
// 0: 注意、1: 警戒、2: 厳重警戒、3: 危険
// 日本生気象学会「日常生活における熱中症予防指針」Ver.3を元に作成
// http://seikishou.jp/pdf/news/shishin.pdf

const WBGTlevel = (humid, temp) => {
    if (temp > (humid * (-12.0 / 70.0) + 40.0 + 36.0 / 7.0)) {
        return 3;
    }
    if (temp > humid * (-13.0 / 80.0) + 25.0 + 130.0 / 8.0) {
        return 2;
    }
    if (temp > humid * (-3.0 / 20.0) + 37.0) {
        return 1;
    }
    return 0;
}

const get_data_send = async (bme280, led) => {
    const val = await bme280.getAllWait();
    console.log(val);
    ambient.send({d1: val.temperature, d2: val.humidity, d3: val.pressure}, (err, res, body) => {
        if (err) {
            console.log(err);
        }
        console.log(res.statusCode);
    });
    const level = WBGTlevel(val.humidity, val.temperature);
    console.log('level: ' + level);
    if (level >= 2) {
        led.on();
    } else {
        led.off();
    }
}

obniz.onconnect = async () => {
    const bme280 = obniz.wired("BME280", {vio:6, vcore:5, gnd:4, csb:3, sdi: 2, sck: 1, sdo:0 });
    await bme280.applyCalibration();
    const led = obniz.wired("LED", {anode:11, cathode:10});
    ambient.connect(channelId, writeKey);

    get_data_send(bme280, led);
    setInterval(() => {
        get_data_send(bme280, led);
    }, 300 * 1000);
}