Merge pull request #5 from abkonsta/master

Add monitor function

README.md

@@ -78,8 +78,13 @@ $ esp run "print 'Mechanisms, not policy.'"
 Mechanisms, not policy.
 ```
 
+#### monitor
+Displays the data received from the serial port.
+```
+$ esp monitor
+Displaying output from port /dev/cu.wchusbserial1410.
+Press ^C to stop.
+```
+
 ## License
 MIT
-
-
-

bin/cli.js

@@ -137,11 +137,18 @@ var config = {
 				.then(console.log)
 				.then(comms.close.bind(comms));
 		});
-	}
-
-};
+	},
 
+  monitor: function() {
+		console.log("Displaying output from port " + port + ".");
+		console.log("Press ^C to stop.\n");
+
+		new SerialComms(port).on('ready', function (comms) {
+			comms.monitor();
+		});  	
+  }
 
+};
 
 
 function execute (config, args) {

src/SerialComms.js

@@ -82,5 +82,10 @@ SerialComms.prototype.close = function () {
 };
 
 
+SerialComms.prototype.monitor = function() {
+  this._port.on('data', function(data) {
+     process.stdout.write(data);
+   });
+}
 
 module.exports = SerialComms;