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node-red-nodes/hardware/PiLcd/pilcd.html
2015-11-01 14:58:24 +00:00

61 lines
2.4 KiB
HTML

<!--
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.
-->
<script type="text/x-red" data-template-name="rpi-lcd">
<div class="form-row">
<label for="node-input-pins"><i class="fa fa-circle"></i> Pins</label>
<input type="text" id="node-input-pins" placeholder="RS,E,D4,D5,D6,D7">
</div>
<br/>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-tips"><b>Tip</b>: 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.</div>
</script>
<script type="text/x-red" data-help-name="rpi-lcd">
<p>Raspberry Pi output to a HD44780 style LCD. Usually 1, 2, or 4 lines of characters.</p>
<p>Expects a <b>msg.payload</b> with a string in it.</p>
<p>Strings for the second line of the display must start <b>2:</b> - the third start <b>3:</b> - and the fourth <b>4:</b></p>
<p>To clear the display send the string <b>clr:</b></p>
<p>It is up to you to manage string lengths to suit the display.</p>
<p>Requires the RPi.GPIO python library version 0.5.8 (or better) in order to work.</p>
<p><b>Note:</b> we are using the actual physical pin numbers on connector P1 as they are easier to locate.</p>
</script>
<script type="text/javascript">
RED.nodes.registerType('rpi-lcd',{
category: 'Raspberry Pi',
color:"#c6dbef",
defaults: {
name: { value:"" },
pins: { value:"", required:true, validate:RED.validators.regex(/^\d+,\d+,\d+,\d+,\d+,\d+$/) }
},
inputs:1,
outputs:0,
align:"right",
icon:"rpi.png",
label:function() {
return this.name||"Pi LCD";
},
labelStyle:function() {
return this.name?"node_label_italic":"";
}
});
</script>