clarify how to log

[RafaelKa]

we need to log some fails in byte stream e.g.:

1. https://github.com/RafaelKa/node-serialport-enocean-parser/blob/25145346ff5c38e7e1e26397366565fde403cbbf/ESP3Parser.js#L58-L69
2. https://github.com/RafaelKa/node-serialport-enocean-parser/blob/25145346ff5c38e7e1e26397366565fde403cbbf/ESP3Parser.js#L93-L105

• Is there standard logger in node or serial port available?
• Is it possible and makes it sense to pass some Prototype/Object/Callback to pass messages?

[Holger-Will]

process.stderr.write() or console.error() ?

[Holger-Will]

or better yet this.emit('error', err)); so users can handle the error downstream and we don't clutter the console... https://nodejs.org/api/stream.html#stream_errors_while_reading