upload-layout

const fs = require('fs');
var SerialPort = require('serialport').SerialPort;
var serialPort = new SerialPort(process.env['DEVICE'], {
    baudRate: 19200,
});

const contents = fs.readFileSync(process.env.COMMANDS, { encoding: 'utf-8' });
const commands = contents.split('\n');

function runCommand(command, rest, done) {
  if (command === undefined) {
    done();
    return;
  }

  console.log(`Writing command: ${command}`);

  serialPort.write(`${command} `, (err, results) => {
    console.log('err: ', err);
    console.log('results: ', results);
  });

  const [next, ...remaining] = rest;

  console.log('Pausing between commands...');
  setTimeout(() => runCommand(next, remaining, done), 50);
}

serialPort.on('open', () => {
  serialPort.on('data', data => {
    console.log('data received: ', data.toString('utf-8'));
  });

  new Promise((resolve, reject) => {
    const [firstCommand,...rest] = commands;
    runCommand(firstCommand, rest, resolve);
  })
    .then(() => serialPort.close());
});