obniz/dist/src/parts/Biological/PULSE08-M5STICKC-S/index.js

obniz sdk for javascript

"use strict";
/**
 * @packageDocumentation
 * @module Parts.Puls08M5stickcS
 */
Object.defineProperty(exports, "__esModule", { value: true });
class Puls08M5stickcS {
    constructor() {
        this.keys = ['vcc', 'gnd', 'tx', 'rx'];
        this.requiredKeys = ['tx', 'rx'];
        this.delimiter = 0x0a;
    }
    static info() {
        return {
            name: 'Puls08M5stickcS',
        };
    }
    onbpmupdate(bpm) {
        return;
    }
    onrawupdate(values) {
        return;
    }
    wired(obniz) {
        this.obniz = obniz;
        obniz.setVccGnd(this.params.vcc, this.params.gnd, '5v');
        this.uart = obniz.getFreeUart();
        this.uart.start({ tx: this.params.tx, rx: this.params.rx, baud: 19200 });
        this.receivingData = [];
        this.init();
        this.uart.onreceive = (data, text) => {
            const dataToCallback = [];
            data.forEach((e) => {
                if (e !== this.delimiter) {
                    this.receivingData.push(e);
                    return;
                }
                else {
                    const row = this.receivingData;
                    if (row[0] === '#'.charCodeAt(0)) {
                        row[0] = ' '.charCodeAt(0);
                        const str = this.decode(row);
                        const val = parseInt(str);
                        const bpm = val > 0 ? 60000 / val : null;
                        this.onbpmupdate(bpm);
                    }
                    else {
                        const str = this.decode(row);
                        const val = parseInt(str);
                        dataToCallback.push(val);
                    }
                    this.receivingData = [];
                }
            });
            if (dataToCallback.length > 0) {
                this.onrawupdate(dataToCallback);
            }
        };
    }
    decode(data) {
        return Buffer.from(data).toString('utf8');
        // if (typeof TextDecoder !== 'undefined') {
        //   let enc = new TextDecoder('utf-8');
        //   let arr = new Uint8Array(data);
        //   return enc.decode(arr);
        // } else if (typeof Buffer !== 'undefined') {
        // return Buffer.from(data).toString('utf8');
        // }
        // throw new Error('cannot decode');
    }
    init() {
        this.uart.send('@OF30');
        this.uart.send(0x0a);
        this.uart.send('@RG2');
        this.uart.send(0x0a);
    }
}
exports.default = Puls08M5stickcS;