etherport-client
Client-side virtual serial port for Rick Waldron's Etherport. Etherport-client is used to implement firmata-compatible boards and tethering hubs to control a board by a remote entity.
Usage Examples
The following usage examples can also be found in the examples directory of this package/project.
Note, you'll need to manually install the required packages to run the examples
(see require statements in the example code).
Tethering a Johnny Five IO-Plugin
Create an EtherPortClient with host and port properties referring to the peer transport endpoint of the
EtherPort instance. Next, bind the resulting object to an IO-plugin using
remote-io (see example below).
var EtherPortClient = require('etherport-client').EtherPortClient;
var RemoteIO = require('remote-io');
var RaspiIO = require('raspi-io');
var io = new RaspiIO();
io.on('ready', function() {
console.log("ready");
var sp = new EtherPortClient({
host: '192.168.178.70',
port: 41234
});
//listen for remote firmata messages
var remoteIO = new RemoteIO({
serial: sp,
io: io
});
});
Tethering a Serial Port (Chaining)
You can also simply chain Serial Port objects. For example, if you have a host with an Arduino board connected via USB and you want to access the Arduino board from a remote computer, you chain the Serial Ports on the host as follows.
var EtherPortClient = require('etherport-client').EtherPortClient;
var chainSerialPorts = require('etherport-client').chainSerialPorts;
var SerialPort = require("serialport").SerialPort;
chainSerialPorts(
new EtherPortClient({
host: '192.168.178.70',
port: 41234
}),
new SerialPort("/dev/ttyUSB1", {
baudrate: 57600
})
);
Using StandardFirmataWiFi with ESP8266
By default, StandardFirmataWiFi with ESP8266 is a TCP Server. Thus, you'll need a TCP client transport for J5.
var five = require("johnny-five");
var EtherPortClient = require("etherport-client").EtherPortClient;
// update host to the IP address for your ESP board
var board = new five.Board({
port: new EtherPortClient({
host: "10.0.0.17",
port: 3030
}),
timeout: 1e5,
repl: false
});
board.on("ready", function() {
console.log("READY!");
var led = new five.Led(2);
led.blink(500);
});
Debugging
For debugging purposes the debug package with topic "etherport-client" is used.
License
The MIT License (MIT), Copyright (c) 2015-2019 Marcus Wittig