diff --git a/hardware/PiLcd/LICENSE b/hardware/PiLcd/LICENSE
new file mode 100644
index 00000000..f433b1a5
--- /dev/null
+++ b/hardware/PiLcd/LICENSE
@@ -0,0 +1,177 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
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+ END OF TERMS AND CONDITIONS
diff --git a/hardware/PiLcd/README.md b/hardware/PiLcd/README.md
new file mode 100644
index 00000000..385d75e7
--- /dev/null
+++ b/hardware/PiLcd/README.md
@@ -0,0 +1,42 @@
+node-red-node-pilcd
+===================
+
+A Node-RED node for a Raspberry Pi
+to write to a GPIO connected HD44780 style LCD panels.
+
+Install
+-------
+
+Run the following command in the root directory of your Node-RED install.
+This is normally `~/.node-red`
+
+ npm install node-red-node-pilcd
+
+Usage
+-----
+
+Raspberry Pi output to HD44780 style LCD module - typically 1, 2, or 4 lines.
+
+It must be configured with a comma separated list of pins that are wired to the LCD panel.
+Pins MUST be a comma separated list of the 6 GPIO connector
+pin numbers that are connected to the RS, E, D4, D5, D6 and D7 pins of the LCD. e.g.
+
+ 26,24,22,18,16,12
+
+Send the node a **msg.payload** with a string in it.
+
+Strings for the 2nd line of the display must start **2:** - the third start **3:** - and the fourth **4:** - For example
+
+ 2:I'm on line two
+ 4:and this is on line 4
+ 1:or indeed line 1
+
+The `1:` is not necessary for line one but is there if you build lines using a template,
+
+To clear the display send the string `clr:`
+
+It is up to you to manage string lengths to suit the display.
+
+Requires the RPi.GPIO python library version 0.5.8 (or better) in order to work.
+
+**Note:** we are using the actual physical pin numbers on connector P1 as they are easier to locate.
diff --git a/hardware/PiLcd/nrlcd b/hardware/PiLcd/nrlcd
new file mode 100755
index 00000000..d6258bed
--- /dev/null
+++ b/hardware/PiLcd/nrlcd
@@ -0,0 +1,16 @@
+#
+# Copyright 2015 IBM Corp.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# http://www.apache.org/licenses/LICENSE-2.0
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+BASEDIR=$(dirname $0)
+sudo python -u $BASEDIR/nrlcd.py $@
diff --git a/hardware/PiLcd/nrlcd.py b/hardware/PiLcd/nrlcd.py
new file mode 100644
index 00000000..623372da
--- /dev/null
+++ b/hardware/PiLcd/nrlcd.py
@@ -0,0 +1,184 @@
+#!/usr/bin/python
+#
+# HD44780 LCD Test Script for
+# Raspberry Pi
+#
+# Original Author : Matt Hawkins
+# Site : http://www.raspberrypi-spy.co.uk
+# Modified to use PINS not BCM : Dave Conway-Jones
+
+#import
+import RPi.GPIO as GPIO
+import time
+import sys
+import os, select
+
+# Turn off warnings if you run it a second time...
+GPIO.setwarnings(False)
+
+# Define initial Pins to LCD mapping
+LCD_RS = 26
+LCD_E = 24
+LCD_D4 = 22
+LCD_D5 = 18
+LCD_D6 = 16
+LCD_D7 = 12
+
+# Define some device constants
+LCD_WIDTH = 20 # Maximum characters per line
+LCD_CHR = True
+LCD_CMD = False
+
+LCD_LINE_1 = 0x80 # LCD RAM address for the 1st line
+LCD_LINE_2 = 0xC0 # LCD RAM address for the 2nd line
+LCD_LINE_3 = 0xA0 # LCD RAM address for the 3rd line
+LCD_LINE_4 = 0xE0 # LCD RAM address for the 4th line
+
+# Timing constants
+E_PULSE = 0.00005
+E_DELAY = 0.00005
+
+def lcd_init():
+ # Initialise display
+ lcd_byte(0x33,LCD_CMD)
+ lcd_byte(0x32,LCD_CMD)
+ lcd_byte(0x28,LCD_CMD)
+ lcd_byte(0x0C,LCD_CMD)
+ lcd_byte(0x06,LCD_CMD)
+ lcd_byte(0x01,LCD_CMD)
+
+def lcd_string(message):
+ # Send string to display
+ message = message.ljust(LCD_WIDTH," ")
+ for i in range(LCD_WIDTH):
+ lcd_byte(ord(message[i]),LCD_CHR)
+
+def lcd_byte(bits, mode):
+ # Send byte to data pins
+ # bits = data
+ # mode = True for character
+ # False for command
+ GPIO.output(LCD_RS, mode) # RS
+
+ # High bits
+ GPIO.output(LCD_D4, False)
+ GPIO.output(LCD_D5, False)
+ GPIO.output(LCD_D6, False)
+ GPIO.output(LCD_D7, False)
+ if bits&0x10==0x10:
+ GPIO.output(LCD_D4, True)
+ if bits&0x20==0x20:
+ GPIO.output(LCD_D5, True)
+ if bits&0x40==0x40:
+ GPIO.output(LCD_D6, True)
+ if bits&0x80==0x80:
+ GPIO.output(LCD_D7, True)
+
+ # Toggle 'Enable' pin
+ time.sleep(E_DELAY)
+ GPIO.output(LCD_E, True)
+ time.sleep(E_PULSE)
+ GPIO.output(LCD_E, False)
+ time.sleep(E_DELAY)
+
+ # Low bits
+ GPIO.output(LCD_D4, False)
+ GPIO.output(LCD_D5, False)
+ GPIO.output(LCD_D6, False)
+ GPIO.output(LCD_D7, False)
+ if bits&0x01==0x01:
+ GPIO.output(LCD_D4, True)
+ if bits&0x02==0x02:
+ GPIO.output(LCD_D5, True)
+ if bits&0x04==0x04:
+ GPIO.output(LCD_D6, True)
+ if bits&0x08==0x08:
+ GPIO.output(LCD_D7, True)
+
+ # Toggle 'Enable' pin
+ time.sleep(E_DELAY)
+ GPIO.output(LCD_E, True)
+ time.sleep(E_PULSE)
+ GPIO.output(LCD_E, False)
+ time.sleep(E_DELAY)
+
+# Main program loop
+if len(sys.argv) > 1:
+ pins = sys.argv[1].lower().split(',')
+ if len(pins) != 6:
+ print "Bad number of pins supplied"
+ print " "+pins
+ sys.exit(0)
+
+ LCD_RS = int(pins[0])
+ LCD_E = int(pins[1])
+ LCD_D4 = int(pins[2])
+ LCD_D5 = int(pins[3])
+ LCD_D6 = int(pins[4])
+ LCD_D7 = int(pins[5])
+
+ GPIO.setmode(GPIO.BOARD) # Use GPIO BOARD numbers
+ GPIO.setup(LCD_RS, GPIO.OUT) # RS
+ GPIO.setup(LCD_E, GPIO.OUT) # E
+ GPIO.setup(LCD_D4, GPIO.OUT) # DB4
+ GPIO.setup(LCD_D5, GPIO.OUT) # DB5
+ GPIO.setup(LCD_D6, GPIO.OUT) # DB6
+ GPIO.setup(LCD_D7, GPIO.OUT) # DB7
+
+ # Initialise display
+ lcd_init()
+
+ # Send some test
+ lcd_byte(LCD_LINE_1, LCD_CMD)
+ lcd_string("Node-RED")
+ lcd_byte(LCD_LINE_2, LCD_CMD)
+ lcd_string("LCD online")
+ time.sleep(2) # 2 second delay
+ lcd_byte(0x01,LCD_CMD)
+
+ # Flush stdin so we start clean
+ while len(select.select([sys.stdin.fileno()], [], [], 0.0)[0])>0:
+ os.read(sys.stdin.fileno(), 4096)
+
+ while True:
+ try:
+ data = raw_input()
+ data = data.rstrip("\r\n\t")
+ if data == "c:lose": # cleanup and exit
+ GPIO.cleanup(LCD_RS)
+ GPIO.cleanup(LCD_E)
+ GPIO.cleanup(LCD_D4)
+ GPIO.cleanup(LCD_D5)
+ GPIO.cleanup(LCD_D6)
+ GPIO.cleanup(LCD_D7)
+ sys.exit(0)
+ elif data == "clr:": # clear the display
+ lcd_init()
+ elif data.startswith("1:"):
+ lcd_byte(LCD_LINE_1, LCD_CMD)
+ lcd_string(data[2:])
+ elif data.startswith("2:"):
+ lcd_byte(LCD_LINE_2, LCD_CMD)
+ lcd_string(data[2:])
+ elif data.startswith("3:"):
+ lcd_byte(LCD_LINE_3, LCD_CMD)
+ lcd_string(data[2:])
+ elif data.startswith("4:"):
+ lcd_byte(LCD_LINE_4, LCD_CMD)
+ lcd_string(data[2:])
+ else: # default to line 1
+ lcd_byte(LCD_LINE_1, LCD_CMD)
+ lcd_string(data)
+ except EOFError: # hopefully always caused by us sigint'ing the program
+ GPIO.cleanup(LCD_RS)
+ GPIO.cleanup(LCD_E)
+ GPIO.cleanup(LCD_D4)
+ GPIO.cleanup(LCD_D5)
+ GPIO.cleanup(LCD_D6)
+ GPIO.cleanup(LCD_D7)
+ sys.exit(0)
+
+else:
+ print "Bad params"
+ print " sudo nrlcd.py RS,E,D4,D5,D6,D7"
+ sys.exit(0)
diff --git a/hardware/PiLcd/package.json b/hardware/PiLcd/package.json
new file mode 100644
index 00000000..90923e5d
--- /dev/null
+++ b/hardware/PiLcd/package.json
@@ -0,0 +1,23 @@
+{
+ "name" : "node-red-node-pilcd",
+ "version" : "0.0.1",
+ "description" : "A Node-RED node for Raspberry Pi to write to HD44780 style LCD panels.",
+ "dependencies" : {
+ },
+ "repository" : {
+ "type":"git",
+ "url":"https://github.com/node-red/node-red-nodes/tree/master/hardware/PiLcd"
+ },
+ "license": "Apache-2.0",
+ "keywords": [ "node-red", "lcd", "HD44780" ],
+ "node-red" : {
+ "nodes" : {
+ "rpi-lcd": "pilcd.js"
+ }
+ },
+ "author": {
+ "name": "Dave Conway-Jones",
+ "email": "ceejay@vnet.ibm.com",
+ "url": "http://nodered.org"
+ }
+}
diff --git a/hardware/PiLcd/pilcd.html b/hardware/PiLcd/pilcd.html
new file mode 100644
index 00000000..87dab382
--- /dev/null
+++ b/hardware/PiLcd/pilcd.html
@@ -0,0 +1,60 @@
+
+
+
+
+
+
+
diff --git a/hardware/PiLcd/pilcd.js b/hardware/PiLcd/pilcd.js
new file mode 100644
index 00000000..7a556fbd
--- /dev/null
+++ b/hardware/PiLcd/pilcd.js
@@ -0,0 +1,103 @@
+/**
+ * Copyright 2015 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+module.exports = function(RED) {
+ "use strict";
+ var util = require("util");
+ var spawn = require('child_process').spawn;
+ var fs = require('fs');
+
+ var gpioCommand = __dirname + '/nrlcd';
+
+ if (!fs.existsSync("/dev/ttyAMA0")) { // unlikely if not on a Pi
+ //util.log("Info : Ignoring Raspberry Pi specific node.");
+ throw "Info : Ignoring Raspberry Pi specific node.";
+ }
+
+ if (!fs.existsSync("/usr/share/doc/python-rpi.gpio")) {
+ util.log("[rpi-lcd] Info : Can't find Pi RPi.GPIO python library.");
+ throw "Warning : Can't find Pi RPi.GPIO python library.";
+ }
+
+ if (!(1 & parseInt ((fs.statSync(gpioCommand).mode & parseInt ("777", 8)).toString (8)[0]))) {
+ util.log("[rpi-lcd] Error : " + gpioCommand + " needs to be executable.");
+ throw "Error : " + gpioCommand + " must to be executable.";
+ }
+
+ function PiLcdNode(n) {
+ RED.nodes.createNode(this, n);
+ this.pins = n.pins;
+ var node = this;
+
+ function inputlistener(msg) {
+ var out = msg.payload.toString();
+ if (RED.settings.verbose) { node.log("inp: " + msg.payload); }
+ if (node.child !== null) { node.child.stdin.write(msg.payload + "\n"); }
+ else { node.warn("Command not running"); }
+ }
+
+ if (node.pins !== undefined) {
+ node.child = spawn(gpioCommand, [node.pins]);
+ node.running = true;
+ if (RED.settings.verbose) { node.log("pin: " + node.pins + " :"); }
+ node.on("input", inputlistener);
+
+ node.child.stdout.on('data', function(data) {
+ if (RED.settings.verbose) { node.log("out: " + data + " :"); }
+ });
+
+ node.child.stderr.on('data', function(data) {
+ if (RED.settings.verbose) { node.log("err: " + data + " :"); }
+ });
+
+ node.child.on('close', function(code) {
+ if (RED.settings.verbose) { node.log("ret: " + code + " :"); }
+ node.child = null;
+ node.running = false;
+ });
+
+ node.child.on('error', function(err) {
+ if (err.errno === "ENOENT") { node.warn('Command not found'); }
+ else if (err.errno === "EACCES") { node.warn('Command not executable'); }
+ else { node.log('error: ' + err); }
+ });
+
+ }
+ else {
+ node.error("Invalid GPIO pins: " + node.pin);
+ }
+
+ var wfi = function(done) {
+ if (!node.running) {
+ if (RED.settings.verbose) { node.log("end"); }
+ done();
+ return;
+ }
+ setTimeout(function() { wfi(done); }, 333);
+ }
+
+ node.on("close", function(done) {
+ delete pinsInUse[node.pin];
+ if (node.child != null) {
+ node.child.stdin.write("c:lose" + node.pin);
+ node.child.kill('SIGKILL');
+ }
+ wfi(done);
+ });
+
+ }
+ RED.nodes.registerType("rpi-lcd", PiLcdNode);
+}