@tillhub/serialio
v3.0.0
Published
Messaging API for communication over serial interfaces
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69
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SerialIO
SerialIO is a small library that allows sending and receiving messages over a serial port.
Message handling is simple and promise-based. It currently does not support concurrent request handling (i.e. further sending of message will be rejected until a repy is received or the reply timeout has passed).
Initialization
const SerialIO = require('serialio');
const serialIO = new SerialIO('/dev/somePort');
serialIO.open().then(
() => console.log('port opened'),
(err) => console.error('unable to open port', err)
)
Sending messages
SerialIO allows to sending strings over the serial port. Additionally, Error instances as messages are handled, as well as objects that can be stringified to JSON.
serialIO.sendRequest('PING').then(
(pong) => console.log(pong),
(err) => console.error('sending message failed', err)
)
Receiving messages
Requests can be received by declaring an onMessage handler. SerialIO tries to return objects, if they were sent as a JSON string.
Any value returned by the handler will be sent as a reply.
serialIO.onMessage((ping) => {
console.log(ping);
return 'PONG'
})
LICENSE
MIT