微创联合 空气质量检测仪

wclh.js

const fs = require('fs');

const headers = [ 
  'TEMP', 'HUMI', 
  'PM1.0','PM2.5','PM10','PM1.0_US','PM2.5_US','PM10_US',
  '>0.3um', '>0.5um', '>1.0um', '>2.5um', '>5.0um', '>10um',
  'HCHO', 'TVOC'
];

const readWCLH = (fd, done) => {
  let buffer = '';
  fs.createReadStream(fd).on('data', chunk => {
    buffer += chunk;
    const lines = buffer.split('\r\n');
    buffer = lines.pop();
    lines.forEach(line => done(line
      .split(/\s+/g)
      .filter(Boolean)
      .reduce((data, value, i) => {
        data[ headers[i] ] = value;
        return data;
      }, {})));
  });
};

readWCLH('/dev/cu.wchusbserial1420', data => {
  console.log(data);
});