Add out node

hardware/sensehat/README.md

@@ -28,7 +28,8 @@ Run the following command in your Node-RED user directory (typically `~/.node-re
 
 ### Input Node
 
-This node sends readings from the various sensors on the Sense HAT, grouped into three sets; motion events, environment events and joystick events.
+This node sends readings from the various sensors on the Sense HAT, grouped into
+three sets; motion events, environment events and joystick events.
 
 #### Motion events
 
@@ -38,9 +39,9 @@ per second. The `topic` is set to `motion` and the `payload` is an object with t
 following values:
 
   - `acceleration.x/y/z` : the acceleration intensity in Gs
-  - `gyroscope.x/y/z` : the rotational intensity in radians/s
+  -`gyroscope.x/y/z` : the rotational intensity in radians/s
-  - `orientation.roll/pitch/yaw` : the angle of the axis in degrees
+  -`orientation.roll/pitch/yaw` : the angle of the axis in degrees
-  - `compass` : the direction of North in degrees
+  -`compass` : the direction of North in degrees
 
 #### Environment events
 
@@ -49,17 +50,69 @@ sensors. They are sent at a rate of approximately 1 per second.  The `topic`
 is set to `environment` and the `payload` is an object
 with the following values:
 
-  - `temperature` : degrees Celsius
+  -`temperature` : degrees Celsius
-  - `humidity` : percentage of relative humidity
+  -`humidity` : percentage of relative humidity
-  - `pressure` : Millibars
+  -`pressure` : Millibars
 
 #### Joystick events
 
 Joystick events are sent when the Sense HAT joystick is interacted with. The
 `topic` is set to `joystick` and the `payload` is an object with the following values:
 
-  - `key` : one of `UP`, `DOWN`, `LEFT`, `RIGHT`, `ENTER`
+  -`key` : one of `UP`, `DOWN`, `LEFT`, `RIGHT`, `ENTER`
-  - `state` : the state of the key:
+  -`state` : the state of the key:
-    - `0` : the key has been released
+    -`0` : the key has been released
-    - `1` : the key has been pressed
+    -`1` : the key has been pressed
-    - `2` : the key is being held down
+    -`2` : the key is being held down
+
+
+### Output Node
+
+This node sends commands to the 8x8 LED display on the Sense HAT.
+
+Commands are sent to the node in `msg.payload`. Multiple commands can
+be sent in a single message by separating them with newline (\n) characters.
+
+#### Set the colour of individual pixels
+
+Format: `<x>,<y>,<colour>`
+
+`x` and `y` must either be a value in the range 0-7, or `*` to indicate the entire row or column.
+
+`colour` must be one of:
+
+    - the well-known <a href="https://en.wikipedia.org/wiki/Web_colors" target="_new">HTML colour names</a>
+     - eg `red` or `aquamarine`,
+    - the <a href="http://cheerlights.com/cheerlights-api/">CheerLights colour names</a>,
+    - a HEX colour value - eg `#aa9900`
+    - an RGB triple - `190,255,0`
+    - or simply `off`
+
+To set the entire screen to red: `*,*,red`
+
+To set the four corners of the display to red, green (#00ff00), yellow and blue (0,0,255):
+
+`0,0,red,0,7,#00ff00,7,7,yellow,7,0,0,0,255`
+
+#### Rotate the screen
+
+Format: `R&lt;angle&gt;`
+
+`angle` must be 0, 90, 180 or 270.
+
+#### Flip the screen
+
+Format: `R&lt;axis&gt;`
+
+`axis` must be either `H` or `V` to flip on the horizontal or vertical axis respectively.
+
+#### Scroll a message
+
+If `msg.payload` is not recognised as any of the above commands, it is treated
+as a text message to be scrolled across the screen.
+
+The following message properties can be used to customise the appearance:
+
+    - `msg.colour` - the colour of the text, default: `white`
+    - `msg.background` - the colour of the background, default: `off`
+    - `msg.speed` - the scroll speed. A value in the range 1 (slower) to 5 (faster), default: `3`

hardware/sensehat/colours.js

@@ -0,0 +1,220 @@
+/**
+ * Copyright 2016 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.
+ **/
+
+var colours = {
+  'aqua':'#00FFFF',
+  'aliceblue':'#F0F8FF',
+  'antiquewhite':'#FAEBD7',
+  'black':'#000000',
+  'off':'#000000',
+  'blue':'#0000FF',
+  'cyan':'#00FFFF',
+  'darkblue':'#00008B',
+  'darkcyan':'#008B8B',
+  'darkgreen':'#006400',
+  'darkturquoise':'#00CED1',
+  'deepskyblue':'#00BFFF',
+  'green':'#008000',
+  'lime':'#00FF00',
+  'mediumblue':'#0000CD',
+  'mediumspringgreen':'#00FA9A',
+  'navy':'#000080',
+  'springgreen':'#00FF7F',
+  'teal':'#008080',
+  'midnightblue':'#191970',
+  'dodgerblue':'#1E90FF',
+  'lightseagreen':'#20B2AA',
+  'forestgreen':'#228B22',
+  'seagreen':'#2E8B57',
+  'darkslategray':'#2F4F4F',
+  'darkslategrey':'#2F4F4F',
+  'limegreen':'#32CD32',
+  'mediumseagreen':'#3CB371',
+  'turquoise':'#40E0D0',
+  'royalblue':'#4169E1',
+  'steelblue':'#4682B4',
+  'darkslateblue':'#483D8B',
+  'mediumturquoise':'#48D1CC',
+  'indigo':'#4B0082',
+  'darkolivegreen':'#556B2F',
+  'cadetblue':'#5F9EA0',
+  'cornflowerblue':'#6495ED',
+  'mediumaquamarine':'#66CDAA',
+  'dimgray':'#696969',
+  'dimgrey':'#696969',
+  'slateblue':'#6A5ACD',
+  'olivedrab':'#6B8E23',
+  'slategray':'#708090',
+  'slategrey':'#708090',
+  'lightslategray':'#778899',
+  'lightslategrey':'#778899',
+  'mediumslateblue':'#7B68EE',
+  'lawngreen':'#7CFC00',
+  'aquamarine':'#7FFFD4',
+  'chartreuse':'#7FFF00',
+  'gray':'#808080',
+  'grey':'#808080',
+  'maroon':'#800000',
+  'olive':'#808000',
+  'purple':'#800080',
+  'lightskyblue':'#87CEFA',
+  'skyblue':'#87CEEB',
+  'blueviolet':'#8A2BE2',
+  'darkmagenta':'#8B008B',
+  'darkred':'#8B0000',
+  'saddlebrown':'#8B4513',
+  'darkseagreen':'#8FBC8F',
+  'lightgreen':'#90EE90',
+  'mediumpurple':'#9370DB',
+  'darkviolet':'#9400D3',
+  'palegreen':'#98FB98',
+  'darkorchid':'#9932CC',
+  'yellowgreen':'#9ACD32',
+  'sienna':'#A0522D',
+  'brown':'#A52A2A',
+  'darkgray':'#A9A9A9',
+  'darkgrey':'#A9A9A9',
+  'greenyellow':'#ADFF2F',
+  'lightblue':'#ADD8E6',
+  'paleturquoise':'#AFEEEE',
+  'lightsteelblue':'#B0C4DE',
+  'powderblue':'#B0E0E6',
+  'firebrick':'#B22222',
+  'darkgoldenrod':'#B8860B',
+  'mediumorchid':'#BA55D3',
+  'rosybrown':'#BC8F8F',
+  'darkkhaki':'#BDB76B',
+  'silver':'#C0C0C0',
+  'mediumvioletred':'#C71585',
+  'indianred':'#CD5C5C',
+  'peru':'#CD853F',
+  'chocolate':'#D2691E',
+  'tan':'#D2B48C',
+  'lightgray':'#D3D3D3',
+  'lightgrey':'#D3D3D3',
+  'thistle':'#D8BFD8',
+  'goldenrod':'#DAA520',
+  'orchid':'#DA70D6',
+  'palevioletred':'#DB7093',
+  'crimson':'#DC143C',
+  'gainsboro':'#DCDCDC',
+  'plum':'#DDA0DD',
+  'burlywood':'#DEB887',
+  'lightcyan':'#E0FFFF',
+  'lavender':'#E6E6FA',
+  'darksalmon':'#E9967A',
+  'palegoldenrod':'#EEE8AA',
+  'violet':'#EE82EE',
+  'azure':'#F0FFFF',
+  'honeydew':'#F0FFF0',
+  'khaki':'#F0E68C',
+  'lightcoral':'#F08080',
+  'sandybrown':'#F4A460',
+  'beige':'#F5F5DC',
+  'mintcream':'#F5FFFA',
+  'wheat':'#F5DEB3',
+  'whitesmoke':'#F5F5F5',
+  'ghostwhite':'#F8F8FF',
+  'lightgoldenrodyellow':'#FAFAD2',
+  'linen':'#FAF0E6',
+  'salmon':'#FA8072',
+  'oldlace':'#FDF5E6',
+  'warmwhite':'#FDF5E6',
+  'bisque':'#FFE4C4',
+  'blanchedalmond':'#FFEBCD',
+  'coral':'#FF7F50',
+  'cornsilk':'#FFF8DC',
+  'darkorange':'#FF8C00',
+  'deeppink':'#FF1493',
+  'floralwhite':'#FFFAF0',
+  'fuchsia':'#FF00FF',
+  'gold':'#FFD700',
+  'hotpink':'#FF69B4',
+  'ivory':'#FFFFF0',
+  'lavenderblush':'#FFF0F5',
+  'lemonchiffon':'#FFFACD',
+  'lightpink':'#FFB6C1',
+  'lightsalmon':'#FFA07A',
+  'lightyellow':'#FFFFE0',
+  'magenta':'#FF00FF',
+  'mistyrose':'#FFE4E1',
+  'moccasin':'#FFE4B5',
+  'navajowhite':'#FFDEAD',
+  'orange':'#FFA500',
+  'orangered':'#FF4500',
+  'papayawhip':'#FFEFD5',
+  'peachpuff':'#FFDAB9',
+  'pink':'#FFC0CB',
+  'red':'#FF0000',
+  'seashell':'#FFF5EE',
+  'snow':'#FFFAFA',
+  'tomato':'#FF6347',
+  'white':'#FFFFFF',
+  'yellow':'#FFFF00',
+  'amber':'#FFD200'
+};
+
+var hexColour = /^#([0-9A-F][0-9A-F][0-9A-F]){1,2}$/i;
+
+module.exports.getRGB = function(col,rgb) {
+    if (!col) {
+        return null;
+    }
+    if (/^\d{1,3},\d{1,3},\d{1,3}$/.test(col)) {
+        return col;
+    }
+    col = col.toString().toLowerCase();
+    if (col in colours) {
+        col = colours[col];
+    }
+    if (hexColour.test(col)) {
+        if (col.length === 4) {
+            col = "#"+col[1]+col[1]+col[2]+col[2]+col[3]+col[3];
+        }
+        if (rgb === "grb") {
+            g = parseInt(col.slice(1,3),16);
+            r = parseInt(col.slice(3,5),16);
+            b = parseInt(col.slice(5),16);
+        }
+        else {
+            r = parseInt(col.slice(1,3),16);
+            g = parseInt(col.slice(3,5),16);
+            b = parseInt(col.slice(5),16);
+        }
+        return r+","+g+","+b;
+    }
+    else {
+        return null;
+    }
+}
+
+module.exports.getHex = function(col) {
+    col = col.toString().toLowerCase();
+    if (col in colours) {
+        return colours[col];
+    }
+    else { return null; }
+}
+
+module.exports.HexRGB = function(hex) {
+    try {
+        r = parseInt(hex.slice(1,3),16);
+        g = parseInt(hex.slice(3,5),16);
+        b = parseInt(hex.slice(5),16);
+        return r+","+g+","+b;
+    }
+    catch(e) { return null; }
+}

hardware/sensehat/sensehat.html

@@ -36,6 +36,13 @@
 </div>
 </script>
 
+<script type="text/x-red" data-template-name="rpi-sensehat out">
+<div class="form-row">
+    <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
+    <input type="text" id="node-input-name">
+</div>
+</script>
+
 <script type="text/x-red" data-help-name="rpi-sensehat in">
 <p>Raspberry Pi Sense HAT input node.</p>
 <p>This node sends readings from the various sensors on the Sense HAT,
@@ -75,10 +82,53 @@ is an object with the following values:</p>
         </ul>
 </li>
 </ul>
-
-
 </script>
 
+<script type="text/x-red" data-help-name="rpi-sensehat out">
+<p>Raspberry Pi Sense HAT output node.</p>
+<p>This node sends commands to the 8x8 LED display on the Sense HAT.</p>
+<p>Commands are sent to the node in <code>msg.payload</code>. Multiple commands can
+be sent in a single message by separating them with newline (\n) characters.<p>
+
+<p><b>Set the colour of individual pixels</b></p>
+<p>Format: <code>&lt;x&gt;,&lt;y&gt;,&lt;colour&gt;</code>
+<p><code>x</code> and <code>y</code> must either be a value in the range 0-7, or
+<code>*</code> to indicate the entire row or column.</p>
+<p><code>colour</code> must be one of:
+<ul>
+    <li>the well-known <a href="https://en.wikipedia.org/wiki/Web_colors" target="_new">HTML colour names</a>
+     - eg <code>red</code> or <code>aquamarine</code>,</li>
+    <li>the <a href="http://cheerlights.com/cheerlights-api/">CheerLights colour names</a>,</li>
+    <li>a HEX colour value - eg <code>#aa9900</code></li>
+    <li>an RGB triple - <code>190,255,0</code></li>
+    <li>or simply <code>off</code></li>
+</ul>
+
+<p><i>Examples</i></p>
+<p>To set the entire screen to red:</p>
+<p><code>*,*,red</code></p>
+<p>To set the four corners of the display to red, green (#00ff00), yellow and blue (0,0,255):</p>
+<p><code>0,0,red,0,7,#00ff00,7,7,yellow,7,0,0,0,255</code></p>
+
+<p><b>Rotate the screen</b></p>
+<p>Format: <code>R&lt;angle&gt;</code></p>
+<p><code>angle</code> must be 0, 90, 180 or 270.</p>
+
+<p><b>Flip the screen</b></p>
+<p>Format: <code>R&lt;axis&gt;</code></p>
+<p><code>axis</code> must be either <code>H</code> or <code>V</code> to flip on
+the horizontal or vertical axis respectively.</p>
+
+<p><b>Scroll a message</b></p>
+<p>If <code>msg.payload</code> is not recognised as any of the above commands,
+it is treated as a text message to be scrolled across the screen.</p>
+<p>The following message properties can be used to customise the appearance:</p>
+<ul>
+    <li><code>msg.colour</code> - the colour of the text, default: <code>white</code></li>
+    <li><code>msg.background</code> - the colour of the background, default: <code>off</code></li>
+    <li><code>msg.speed</code> - the scroll speed. A value in the range 1 (slower) to 5 (faster), default: <code>3</code></li>
+</ul>
+</script>
 <script type="text/javascript">
     RED.nodes.registerType('rpi-sensehat in',{
         category: 'Raspberry Pi',
@@ -100,4 +150,23 @@ is an object with the following values:</p>
             return this.name?"node_label_italic":"";
         }
     });
+
+    RED.nodes.registerType('rpi-sensehat out',{
+        category: 'Raspberry Pi',
+        paletteLabel: "Sense HAT",
+        color:"#c6dbef",
+        defaults: {
+            name: { value:"" },
+        },
+        inputs:1,
+        outputs:0,
+        icon: "rpi.png",
+        align: "right",
+        label: function() {
+            return this.name||"Sense HAT";
+        },
+        labelStyle: function() {
+            return this.name?"node_label_italic":"";
+        }
+    });
 </script>

hardware/sensehat/sensehat.js

@@ -18,6 +18,7 @@ module.exports = function(RED) {
     "use strict";
     var fs = require('fs');
     var spawn = require('child_process').spawn;
+    var colours = require('./colours');
 
     var hatCommand = __dirname+'/sensehat';
 
@@ -198,10 +199,16 @@ module.exports = function(RED) {
                 } else {
                     done();
                 }
+            },
+            send: function(msg) {
+                if (hat) {
+                    hat.stdin.write(msg+'\n');
+                }
             }
         }
     })();
 
+
     function SenseHatInNode(n) {
         RED.nodes.createNode(this,n);
         this.motion = n.motion;
@@ -215,4 +222,115 @@ module.exports = function(RED) {
         });
     }
     RED.nodes.registerType("rpi-sensehat in",SenseHatInNode);
+
+    function SenseHatOutNode(n) {
+        RED.nodes.createNode(this,n);
+        var node = this;
+        HAT.open(this);
+
+        node.on("close", function(done) {
+            HAT.close(this,done);
+        });
+
+        node.on("input",function(msg) {
+            var command;
+            var parts;
+            var col;
+            if (typeof msg.payload === 'string') {
+                var lines = msg.payload.split("\n");
+                lines.forEach(function(line) {
+                    command = null;
+                    col = colours.getRGB(line);
+                    if ( /^(([0-7]|\*),([0-7]|\*),(\d{1,3},\d{1,3},\d{1,3}|#[a-f0-9]{3,6}|[a-z]+))(,([0-7]|\*),([0-7]|\*),(\d{1,3},\d{1,3},\d{1,3}|#[a-f0-9]{3,6}|[a-z]+))*$/i.test(line)) {
+                        parts = line.split(",");
+                        var expanded = [];
+                        var i=0;
+                        var j=0;
+                        while (i<parts.length) {
+                            var x = parts[i++];
+                            var y = parts[i++];
+                            col = parts[i++];
+                            if (/#[a-f0-9]{3,6}|[a-z]/i.test(col)) {
+                                col = colours.getRGB(col);
+                                if (col === null) {
+                                    // invalid colour, go no further
+                                    return;
+                                }
+                            } else {
+                                col += ","+parts[i++]+","+parts[i++];
+                            }
+                            if (x!=='*' && y!=='*') {
+                                expanded.push([x,y,col]);
+                            } else if (x == '*' && y == '*') {
+                                for (j=0;j<8;j++) {
+                                    for (var k=0;k<8;k++) {
+                                        expanded.push([j,k,col]);
+                                    }
+                                }
+                            } else if (x == '*') {
+                                for (j=0;j<8;j++) {
+                                    expanded.push([j,y,col]);
+                                }
+                            } else if (y == '*') {
+                                for (j=0;j<8;j++) {
+                                    expanded.push([x,j,col]);
+                                }
+                            }
+                        }
+                        if (expanded.length > 0) {
+                            var pixels = {};
+                            var rules = [];
+                            for (i=expanded.length-1;i>=0;i--) {
+                                var rule = expanded[i];
+                                if (!pixels[rule[0]+","+rule[1]]) {
+                                    rules.unshift(rule.join(","));
+                                    pixels[rule[0]+","+rule[1]] = true;
+                                }
+                            }
+                            if (rules.length > 0) {
+                                command = "P"+rules.join(",");
+                            }
+                        }
+                    }
+
+
+                    if (!command) {
+                        if (/^R(0|90|180|270)$/i.test(line)) {
+                            command = line.toUpperCase();
+                        } else if (/^F(H|V)$/i.test(line)) {
+                            command = line.toUpperCase();
+                        } else {
+                            var textCol = colours.getRGB(msg.color);
+                            var backCol = colours.getRGB(msg.background);
+                            var speed = null;
+                            if (!isNaN(msg.speed)) {
+                                speed = msg.speed;
+                            }
+                            command = "T";
+                            if (textCol) {
+                                command += textCol;
+                                if (backCol) {
+                                    command += ","+backCol;
+                                }
+                            }
+                            if (speed) {
+                                var s = parseInt(speed);
+                                if (s >= 1 && s <= 5) {
+                                    s = 0.1 + (3-s)*0.03;
+                                }
+                                command = command + ((command.length === 1)?"":",") + s;
+                            }
+                            command += ":" + line;
+                        }
+                    }
+                    if (command) {
+                        //console.log(command);
+                        HAT.send(command);
+                    }
+                });
+            }
+        });
+    }
+    RED.nodes.registerType("rpi-sensehat out",SenseHatOutNode);
+
 }

hardware/sensehat/sensehat.py

@@ -16,7 +16,7 @@
 #  C[R,G,B] - clear to colour (or off if no RGB provided)
 #  R[rot] - rotate by rot (0,90,180,270)
 #  P[x,y,R,G,B]+ - set individual pixel(s) to a colour
-#  T[R,G,B:]Message - scroll a message (nb: if message contains ':' it must be prefixed with ':')
+#  T[R,G,B[,R,G,B][,S]:]Message - scroll a message (nb: if message contains ':' it must be prefixed with ':')
 #  F[H|V] - flip horizontal|vertical
 #  X[0|1] - high frequency reporting (accel/gyro/orientation/compass) off|on
 #  Y[0|1] - low frequency reporting (temperature/humidity/pressure) off|on
@@ -32,8 +32,11 @@ import sys
 import glob
 import time
 import errno
+import ctypes
 import select
 import struct
+import inspect
+import threading
 
 from sense_hat import SenseHat
 
@@ -69,40 +72,48 @@ lf_interval = 1
 hf_enabled = False
 lf_enabled = False
 
+scroll = None
+
+class ScrollThread(threading.Thread):
+  def __init__(self,fcol,bcol,speed,message):
+    threading.Thread.__init__(self)
+    self.fcol = fcol
+    self.bcol = bcol
+    self.message = message
+    self.speed = speed
+
+  def run(self):
+    global SH
+    old_rotation = SH.rotation
+
+    try:
+      SH.show_message(self.message,text_colour=self.fcol,back_colour=self.bcol,scroll_speed=self.speed)
+    except:
+      SH.set_rotation(old_rotation,False)
+      SH.clear(self.bcol);
+      pass
+
+  def interrupt(self):
+    if not self.isAlive():
+      raise threading.ThreadError()
+    for thread_id, thread_object in threading._active.items():
+      if thread_object == self:
+        r = ctypes.pythonapi.PyThreadState_SetAsyncExc(thread_id,ctypes.py_object(StandardError))
+        if r == 1:
+          pass
+        else:
+          if r > 1:
+            ctypes.pythonapi.PyThreadState_SetAsyncExc(thread_id, 0)
+          raise SystemError()
+        return
+
+
+
 
 def process_command(data):
-  global hf_enabled, lf_enabled
+  global hf_enabled, lf_enabled,scroll
-  if data[0] == "R":
+
-    SH.set_rotation(float(data[1:]))
+  if data[0] == "X":
-  elif data[0] == "C":
-    data = data[1:].strip()
-    if len(data) > 0:
-        s = data.split(",")
-        col = (int(s[0]),int(s[1]),int(s[2]))
-    else:
-        col = (0,0,0)
-    SH.clear(col)
-  elif data[0] == "P":
-    data = data[1:].strip()
-    s = data.split(',')
-    for p in range(0,len(s),5):
-      SH.set_pixel(int(s[p]),int(s[p+1]),int(s[p+2]),int(s[p+3]),int(s[p+4]))
-  elif data[0] == "T":
-    data = data[1:].strip()
-    col = (255,255,255)
-    s = data.split(':',1)
-    if len(s) == 2:
-      data = s[1]
-      if len(s[0]) > 0:
-        c = s[0].split(",")
-        col = (int(c[0]),int(c[1]),int(c[2]))
-    SH.show_message(data,text_colour=col)
-  elif data[0] == "F":
-    if data[1] == "H":
-      SH.flip_h()
-    elif data[1] == "V":
-      SH.flip_v()
-  elif data[0] == "X":
     if data[1] == '0':
       hf_enabled = False
     else:
@@ -112,6 +123,61 @@ def process_command(data):
       lf_enabled = False
     else:
       lf_enabled = True
+  else:
+    if threading.activeCount() == 2:
+      scroll.interrupt()
+      while scroll.isAlive():
+          time.sleep(0.01)
+          try:
+            scroll.interrupt()
+          except:
+            pass
+    if data[0] == "R":
+      SH.set_rotation(float(data[1:]))
+    elif data[0] == "C":
+      data = data[1:].strip()
+      if len(data) > 0:
+          s = data.split(",")
+          col = (int(s[0]),int(s[1]),int(s[2]))
+      else:
+          col = (0,0,0)
+      SH.clear(col)
+    elif data[0] == "P":
+      data = data[1:].strip()
+      s = data.split(',')
+      for p in range(0,len(s),5):
+        SH.set_pixel(int(s[p]),int(s[p+1]),int(s[p+2]),int(s[p+3]),int(s[p+4]))
+    elif data[0] == "T":
+      data = data[1:].strip()
+      tcol = (255,255,255)
+      bcol = (0,0,0)
+      speed = 0.1
+      s = data.split(':',1)
+      if len(s) == 2:
+        data = s[1]
+        if len(s[0]) > 0:
+          c = s[0].split(",")
+          if len(c) == 1:
+            speed = float(c[0])
+          elif len(c) == 3:
+            tcol = (int(c[0]),int(c[1]),int(c[2]))
+          if len(c) == 4:
+            tcol = (int(c[0]),int(c[1]),int(c[2]))
+            speed = float(c[3])
+          elif len(c) == 6:
+            tcol = (int(c[0]),int(c[1]),int(c[2]))
+            bcol = (int(c[3]),int(c[4]),int(c[5]))
+          elif len(c) == 7:
+            tcol = (int(c[0]),int(c[1]),int(c[2]))
+            bcol = (int(c[3]),int(c[4]),int(c[5]))
+            speed = float(c[6])
+      scroll = ScrollThread(tcol,bcol,speed,data);
+      scroll.start()
+    elif data[0] == "F":
+      if data[1] == "H":
+        SH.flip_h()
+      elif data[1] == "V":
+        SH.flip_v()
 
 def idle_work():
   global last_hf_time, last_lf_time