add serialport to node-red-nodes, fix lint etc etc

io/serialport/README.md

@@ -0,0 +1,53 @@
+node-red-node-serialport
+========================
+
+<a href="http://nodered.org" target="_new">Node-RED</a> nodes to talk to an hardware Serial port.
+
+**Note** : This is the same node as is/was in the core of Node-RED. If you already
+have it installed you do NOT need this node.
+
+Install
+-------
+
+Run the following command in the root directory of your Node-RED install, usually
+this is ~/.node-red .
+
+        npm install node-red-node-serialport
+
+During install there may be multiple messages about optional compilation.
+These may look like failures... as they report as failure to compile errors -
+but often are warnings and the node will continue to install and, assuming nothing else
+failed, you should be able to use it. Occasionally some platforms *will* require
+you to install the full set of tools in order to compile the underlying package.
+
+
+Usage
+-----
+
+Provides two nodes - one to receive messages, and one to send.
+
+###Input
+
+Reads data from a local serial port.
+
+Clicking on the search icon will attempt to autodetect serial ports attached to
+the device, however you many need to manually specify it. COM1, /dev/ttyUSB0, etc
+
+It can either
+
+ - wait for a "split" character (default \n). Also accepts hex notation (0x0a).
+ - wait for a timeout in milliseconds for the first character received
+ - wait to fill a fixed sized buffer
+
+It then outputs **msg.payload** as either a UTF8 ascii string or a binary Buffer object.
+
+If no split character is specified, or a timeout or buffer size of 0, then a stream
+of single characters is sent - again either as ascii chars or size 1 binary buffers.
+
+###Output
+
+Provides a connection to an outbound serial port.
+
+Only the **msg.payload** is sent.
+
+Optionally the new line character used to split the input can be appended to every message sent out to the serial port.