mirror of
https://github.com/node-red/node-red-nodes.git
synced 2023-10-10 13:36:58 +02:00
Let serialport wiatfor a char before starting output
This commit is contained in:
parent
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commit
0b11d68c02
@ -99,7 +99,7 @@
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with which it shares the configuration.</p>
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with which it shares the configuration.</p>
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<p>Send the request message in <code>msg.payload</code> as you would do with a <code>serial out</code> node.
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<p>Send the request message in <code>msg.payload</code> as you would do with a <code>serial out</code> node.
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The message will be forwarded to the serial port following a strict FIFO (First In, First Out) queue, waiting for a single response before transmitting the next request.
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The message will be forwarded to the serial port following a strict FIFO (First In, First Out) queue, waiting for a single response before transmitting the next request.
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Once a response is received (with the same logic of a <code>serial in</code> node), or after a timeout occurs, a message is produced to the output (see Outputs below),
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Once a response is received (with the same logic of a <code>serial in</code> node), or after a timeout occurs, a message is sent to the output (see Outputs below),
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with <code>msg.payload</code> containing the received response (or missing in case if timeout) and all other fields preserved.</p>
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with <code>msg.payload</code> containing the received response (or missing in case if timeout) and all other fields preserved.</p>
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<p>For consistency with the <code>serial in</code> node, <code>msg.port</code> is set to the name of the port selected.</p>
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<p>For consistency with the <code>serial in</code> node, <code>msg.port</code> is set to the name of the port selected.</p>
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<h3>Inputs</h3>
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<h3>Inputs</h3>
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@ -108,7 +108,8 @@
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<code>msg.timeout</code> is the timeout (in ms) after which the incoming message is propagated to the output with <code>msg.status</code> set to <code>"ERR_TIMEOUT"</code> and missing payload.
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<code>msg.timeout</code> is the timeout (in ms) after which the incoming message is propagated to the output with <code>msg.status</code> set to <code>"ERR_TIMEOUT"</code> and missing payload.
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If not present, the default value is 10000 (10s).
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If not present, the default value is 10000 (10s).
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</li>
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</li>
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<li>Any other field will be propagated to the output so to allow to match responses with requests.</li>
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<li><code>msg.count</code> if set this will override the configured number of characters as long as it is less than the number configured.</li>
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<li><code>msg.waitfor</code> single character, escape code, or hex code. If set, the node will wait until it matches that character in the stream and then start the output.</li>
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</ul>
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</ul>
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<h3>Outputs</h3>
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<h3>Outputs</h3>
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<ul>
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<ul>
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@ -178,59 +179,66 @@
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</select>
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</select>
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</td></tr></table>
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</td></tr></table>
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</div>
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</div>
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<br/>
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<div class="form-row" style="margin-top:16px; margin-bottom:0;">
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<div class="form-row">
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<label><i class="fa fa-sign-in"></i> <span data-i18n="serial.label.input"></span></label>
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<label><i class="fa fa-sign-in"></i> <span data-i18n="serial.label.input"></span></label>
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</div>
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</div>
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<div class="form-row" style="padding-left:10px;">
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<div class="form-row" style="padding-left:18px; margin-bottom:4px;">
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<span data-i18n="serial.label.start"></span>
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<input type="text" id="node-config-input-waitfor" style="width:50px; height:28px;">
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<span data-i18n="serial.label.startor"></span>
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</div>
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<div class="form-row" style="padding-left:18px; margin-bottom:4px;">
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<span data-i18n="serial.label.split"></span>
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<span data-i18n="serial.label.split"></span>
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<select type="text" id="node-config-input-out" style="margin-left:5px; width:200px;">
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<select type="text" id="node-config-input-out" style="margin-left:11px; width:200px; height:28px;">
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<option value="char" data-i18n="serial.split.character"></option>
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<option value="char" data-i18n="serial.split.character"></option>
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<option value="time" data-i18n="serial.split.timeout"></option>
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<option value="time" data-i18n="serial.split.timeout"></option>
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<option value="interbyte" data-i18n="serial.split.silent"></option>
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<option value="interbyte" data-i18n="serial.split.silent"></option>
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<option value="count" data-i18n="serial.split.lengths"></option>
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<option value="count" data-i18n="serial.split.lengths"></option>
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</select>
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</select>
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<input type="text" id="node-config-input-newline" style="width:50px;">
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<input type="text" id="node-config-input-newline" style="width:50px; height:28px;">
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<span id="node-units"></span>
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<span id="node-units"></span>
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</div>
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</div>
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<div class="form-row" style="padding-left:10px;">
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<div class="form-row" style="padding-left:18px; margin-bottom:4px;">
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<span data-i18n="serial.label.deliver"></span>
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<span data-i18n="serial.label.deliver"></span>
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<select type="text" id="node-config-input-bin" style="margin-left:5px; width:150px;">
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<select type="text" id="node-config-input-bin" style="margin-left:5px; width:150px; height:28px;">
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<option value="false" data-i18n="serial.output.ascii"></option>
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<option value="false" data-i18n="serial.output.ascii"></option>
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<option value="bin" data-i18n="serial.output.binary"></option>
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<option value="bin" data-i18n="serial.output.binary"></option>
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</select>
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</select>
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</div>
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</div>
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<br/>
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<div id="node-config-addchar">
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<div id="node-config-addchar">
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<div class="form-row">
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<div class="form-row" style="margin-top:16px; margin-bottom:0;">
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<label><i class="fa fa-sign-out"></i> <span data-i18n="serial.label.output"></span></label>
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<label><i class="fa fa-sign-out"></i> <span data-i18n="serial.label.output"></span></label>
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</div>
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</div>
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<div class="form-row">
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<div class="form-row" style="padding-left:18px; margin-bottom:4px;">
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<input style="width:30px; margin-left:10px; vertical-align:top;" type="checkbox" id="node-config-input-addchar"><label style="width:auto;" for="node-config-input-addchar"><span data-i18n="serial.addsplit"></span></label>
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<label style="width:auto;" for="node-config-input-addchar"><span data-i18n="serial.addsplit"></span></label>
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<input type="text" id="node-config-input-addchar" style="width:50px; height:28px;">
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</div>
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</div>
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</div>
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</div>
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<br/>
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<div id="node-config-req">
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<div id="node-config-addchar">
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<div class="form-row" style="margin-top:16px; margin-bottom:0;">
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<div class="form-row">
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<label><i class="fa fa-exchange"></i> <span data-i18n="serial.label.request"></span></label>
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<label><i class="fa fa-exchange"></i> <span data-i18n="serial.label.request"></span></label>
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</div>
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</div>
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<div class="form-row" style="padding-left:10px;">
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<div class="form-row" style="padding-left:18px; margin-bottom:18px;">
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<span data-i18n="serial.label.responsetimeout"></span>
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<span data-i18n="serial.label.responsetimeout"></span>
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<input type="text" id="node-config-input-responsetimeout" style="width:60px;">
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<input type="text" id="node-config-input-responsetimeout" style="width:60px; height:28px;">
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<span data-i18n="serial.label.ms"></span>
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<span data-i18n="serial.label.ms"></span>
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</div>
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</div>
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</div>
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</div>
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<div class="form-tips" id="tip-waitfor" hidden><span data-i18n="serial.tip.waitfor"></span></div>
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<div class="form-tips" id="tip-addchar" hidden><span data-i18n="serial.tip.addchar"></span></div>
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<div class="form-tips" id="tip-responsetimeout" hidden><span data-i18n="serial.tip.responsetimeout"></span></div>
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<div class="form-tips" id="tip-responsetimeout" hidden><span data-i18n="serial.tip.responsetimeout"></span></div>
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<div class="form-tips" id="tip-split"><span data-i18n="serial.tip.split"></span></div>
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<div class="form-tips" id="tip-split"><span data-i18n="serial.tip.split"></span></div>
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<div class="form-tips" id="tip-timeout" hidden><span data-i18n="serial.tip.timeout"></span></div>
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<div class="form-tips" id="tip-timeout" hidden><span data-i18n="serial.tip.timeout"></span></div>
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<div class="form-tips" id="tip-silent" hidden><span data-i18n="serial.tip.silent"></span></div>
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<div class="form-tips" id="tip-silent" hidden><span data-i18n="serial.tip.silent"></span></div>
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<div class="form-tips" id="tip-count" hidden><span data-i18n="serial.tip.count"></span></div>
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</script>
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</script>
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<script type="text/x-red" data-help-name="serial-port">
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<script type="text/x-red" data-help-name="serial-port">
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<p>Provides configuration options for a serial port.</p>
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<p>Provides configuration options for a serial port.</p>
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<p>The search button should return a list of available serial ports to choose from, or you
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<p>The search button should return a list of available serial ports to choose from, or you
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can type in the location if known.</p>
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can type in the location if known.</p>
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<p>The input can be split on a fixed character, after a timeout, or after a fixed number of characters.</p>
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<p>The node can optionally wait until it matches a pre-defined character.
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The data can then be split on a fixed character, after a timeout, or after a fixed number of characters.</p>
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<p>If using a character, it can be specified as either the character, the escaped shortcut (e.g. \n), or the hex code (e.g. 0x0d).</p>
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<p>If using a character, it can be specified as either the character, the escaped shortcut (e.g. \n), or the hex code (e.g. 0x0d).</p>
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</script>
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</script>
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@ -244,6 +252,7 @@
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databits: {value:8,required:true},
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databits: {value:8,required:true},
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parity: {value:"none",required:true},
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parity: {value:"none",required:true},
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stopbits: {value:1,required:true},
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stopbits: {value:1,required:true},
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waitfor: {value:""},
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newline: {value:"\\n"},
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newline: {value:"\\n"},
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bin: {value:"false"},
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bin: {value:"false"},
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out: {value:"char"},
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out: {value:"char"},
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@ -290,41 +299,50 @@
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if ($("#node-config-input-out").val() == "char") {
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if ($("#node-config-input-out").val() == "char") {
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if (previous != "char") { $("#node-config-input-newline").val("\\n"); }
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if (previous != "char") { $("#node-config-input-newline").val("\\n"); }
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$("#node-units").text("");
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$("#node-units").text("");
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$("#node-config-addchar").show();
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// $("#node-config-addchar").show();
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$("#tip-split").show();
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$("#tip-split").show();
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$("#tip-timeout").hide();
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$("#tip-timeout").hide();
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$("#tip-silent").hide();
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$("#tip-silent").hide();
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$("#tip-count").hide();
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}
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}
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else if ($("#node-config-input-out").val() == "time") {
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else if ($("#node-config-input-out").val() == "time") {
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if (previous != "time") { $("#node-config-input-newline").val("0"); }
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if (previous != "time") { $("#node-config-input-newline").val("0"); }
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$("#node-units").text("ms");
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$("#node-units").text("ms");
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$("#node-config-addchar").hide();
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// $("#node-config-addchar").hide();
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$("#node-config-input-addchar").val("false");
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// $("#node-config-input-addchar").val("false");
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$("#tip-split").hide();
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$("#tip-split").hide();
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$("#tip-timeout").show();
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$("#tip-timeout").show();
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$("#tip-silent").hide();
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$("#tip-silent").hide();
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$("#tip-count").hide();
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}
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}
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else if ($("#node-config-input-out").val() == "interbyte") {
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else if ($("#node-config-input-out").val() == "interbyte") {
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if (previous != "interbyte") { $("#node-config-input-newline").val("0"); }
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if (previous != "interbyte") { $("#node-config-input-newline").val("0"); }
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$("#node-units").text("ms");
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$("#node-units").text("ms");
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$("#node-config-addchar").hide();
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// $("#node-config-addchar").hide();
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$("#node-config-input-addchar").val("false");
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// $("#node-config-input-addchar").val("false");
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$("#tip-split").hide();
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$("#tip-split").hide();
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$("#tip-timeout").hide();
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$("#tip-timeout").hide();
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$("#tip-silent").show();
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$("#tip-silent").show();
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$("#tip-count").hide();
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}
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}
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else {
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else {
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if (previous != "count") { $("#node-config-input-newline").val(""); }
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if (previous != "count") { $("#node-config-input-newline").val(""); }
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$("#node-units").text("chars");
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$("#node-units").text("chars");
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$("#node-config-addchar").hide();
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// $("#node-config-addchar").hide();
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$("#node-config-input-addchar").val("false");
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// $("#node-config-input-addchar").val("false");
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$("#tip-split").hide();
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$("#tip-split").hide();
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$("#tip-timeout").hide();
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$("#tip-timeout").hide();
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$("#tip-silent").hide();
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$("#tip-silent").hide();
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$("#tip-count").show();
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}
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}
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});
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});
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$("#node-config-input-responsetimeout").on('focus', function () { $("#tip-responsetimeout").show(); });
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$("#node-config-input-responsetimeout").on('focus', function () { $("#tip-responsetimeout").show(); });
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$("#node-config-input-responsetimeout").on('blur', function () { $("#tip-responsetimeout").hide(); });
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$("#node-config-input-waitfor").on('focus', function () { $("#tip-waitfor").show(); });
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$("#node-config-input-waitfor").on('blur', function () { $("#tip-waitfor").hide(); });
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$("#node-config-input-addchar").on('focus', function () { $("#tip-addchar").show(); });
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$("#node-config-input-addchar").on('blur', function () { $("#tip-addchar").hide(); });
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try {
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try {
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$("#node-config-input-serialport").autocomplete( "destroy" );
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$("#node-config-input-serialport").autocomplete( "destroy" );
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@ -13,13 +13,14 @@ module.exports = function(RED) {
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RED.nodes.createNode(this,n);
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RED.nodes.createNode(this,n);
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this.serialport = n.serialport;
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this.serialport = n.serialport;
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this.newline = n.newline; /* overloaded: split character, timeout, or character count */
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this.newline = n.newline; /* overloaded: split character, timeout, or character count */
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this.addchar = n.addchar || "false";
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this.addchar = n.addchar || "";
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this.serialbaud = parseInt(n.serialbaud) || 57600;
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this.serialbaud = parseInt(n.serialbaud) || 57600;
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this.databits = parseInt(n.databits) || 8;
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this.databits = parseInt(n.databits) || 8;
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this.parity = n.parity || "none";
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this.parity = n.parity || "none";
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this.stopbits = parseInt(n.stopbits) || 1;
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this.stopbits = parseInt(n.stopbits) || 1;
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this.bin = n.bin || "false";
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this.bin = n.bin || "false";
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this.out = n.out || "char";
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this.out = n.out || "char";
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this.waitfor = n.waitfor || "";
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this.responsetimeout = n.responsetimeout || 10000;
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this.responsetimeout = n.responsetimeout || 10000;
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}
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}
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RED.nodes.registerType("serial-port",SerialPortNode);
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RED.nodes.registerType("serial-port",SerialPortNode);
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@ -117,6 +118,10 @@ module.exports = function(RED) {
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// Serial Out
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// Serial Out
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node.on("input",function(msg) {
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node.on("input",function(msg) {
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if (!msg.hasOwnProperty("payload")) { return; } // do nothing unless we have a payload
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if (!msg.hasOwnProperty("payload")) { return; } // do nothing unless we have a payload
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if (msg.hasOwnProperty("count") && (typeof msg.count === "number") && (node.serialConfig.out === "count")) {
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node.serialConfig.newline = msg.count;
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}
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if (msg.hasOwnProperty("flush") && msg.flush === true) { node.port.serial.flush(); }
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node.status({fill:"yellow",shape:"dot",text:"serial.status.waiting"});
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node.status({fill:"yellow",shape:"dot",text:"serial.status.waiting"});
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node.port.enqueue(msg,node,function(err,res) {
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node.port.enqueue(msg,node,function(err,res) {
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if (err) {
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if (err) {
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@ -176,6 +181,7 @@ module.exports = function(RED) {
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stopbits = serialConfig.stopbits,
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stopbits = serialConfig.stopbits,
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newline = serialConfig.newline,
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newline = serialConfig.newline,
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spliton = serialConfig.out,
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spliton = serialConfig.out,
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waitfor = serialConfig.waitfor,
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binoutput = serialConfig.bin,
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binoutput = serialConfig.bin,
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addchar = serialConfig.addchar,
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addchar = serialConfig.addchar,
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responsetimeout = serialConfig.responsetimeout;
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responsetimeout = serialConfig.responsetimeout;
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@ -191,17 +197,25 @@ module.exports = function(RED) {
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// "time" : a msg will be sent after .newline milliseconds
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// "time" : a msg will be sent after .newline milliseconds
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// "count" : a msg will be sent after .newline characters
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// "count" : a msg will be sent after .newline characters
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// if we use "count", we already know how big the buffer will be
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// if we use "count", we already know how big the buffer will be
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var bufSize = spliton == "count" ? Number(newline): bufMaxSize;
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var bufSize = (spliton === "count") ? Number(newline): bufMaxSize;
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var buf = new Buffer(bufSize);
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waitfor = waitfor.replace("\\n","\n").replace("\\r","\r").replace("\\t","\t").replace("\\e","\e").replace("\\f","\f").replace("\\0","\0"); // jshint ignore:line
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if (waitfor.substr(0,2) == "0x") { waitfor = parseInt(waitfor,16); }
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if (waitfor.length === 1) { waitfor = waitfor.charCodeAt(0); }
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console.log("WF2",waitfor);
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var active = (waitfor === "") ? true : false;
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var buf = new Buffer.alloc(bufSize);
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var splitc; // split character
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var splitc; // split character
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// Parse the split character onto a 1-char buffer we can immediately compare against
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// Parse the split character onto a 1-char buffer we can immediately compare against
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if (newline.substr(0,2) == "0x") {
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if (newline.substr(0,2) == "0x") {
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splitc = new Buffer([parseInt(newline)]);
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splitc = new Buffer.alloc([parseInt(newline,16)]);
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}
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}
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else {
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else {
|
||||||
splitc = new Buffer(newline.replace("\\n","\n").replace("\\r","\r").replace("\\t","\t").replace("\\e","\e").replace("\\f","\f").replace("\\0","\0")); // jshint ignore:line
|
splitc = new Buffer.from(newline.replace("\\n","\n").replace("\\r","\r").replace("\\t","\t").replace("\\e","\e").replace("\\f","\f").replace("\\0","\0")); // jshint ignore:line
|
||||||
}
|
}
|
||||||
|
if (addchar === true) { addchar = splitc; }
|
||||||
|
console.log("AC:",addchar,":");
|
||||||
|
|
||||||
connections[id] = (function() {
|
connections[id] = (function() {
|
||||||
var obj = {
|
var obj = {
|
||||||
@ -220,10 +234,10 @@ module.exports = function(RED) {
|
|||||||
else {
|
else {
|
||||||
payload = payload.toString();
|
payload = payload.toString();
|
||||||
}
|
}
|
||||||
if ((spliton === "char") && (addchar === true)) { payload += splitc; }
|
if ((spliton === "char") && (addchar !== "")) { payload += addchar; }
|
||||||
}
|
}
|
||||||
else if ((spliton === "char") && (addchar === true) && (splitc !== "")) {
|
else if ((spliton === "char") && (addchar !== "")) {
|
||||||
payload = Buffer.concat([payload,splitc]);
|
payload = Buffer.concat([payload,addchar]);
|
||||||
}
|
}
|
||||||
return payload;
|
return payload;
|
||||||
},
|
},
|
||||||
@ -287,6 +301,7 @@ module.exports = function(RED) {
|
|||||||
//newline = newline.replace("\\n","\n").replace("\\r","\r");
|
//newline = newline.replace("\\n","\n").replace("\\r","\r");
|
||||||
var olderr = "";
|
var olderr = "";
|
||||||
var setupSerial = function() {
|
var setupSerial = function() {
|
||||||
|
|
||||||
obj.serial = new serialp(port,{
|
obj.serial = new serialp(port,{
|
||||||
baudRate: baud,
|
baudRate: baud,
|
||||||
dataBits: databits,
|
dataBits: databits,
|
||||||
@ -331,23 +346,26 @@ module.exports = function(RED) {
|
|||||||
|
|
||||||
obj.serial.on('data',function(d) {
|
obj.serial.on('data',function(d) {
|
||||||
function emitData(data) {
|
function emitData(data) {
|
||||||
var m = Buffer.from(data);
|
if (active === true) {
|
||||||
var last_sender = null;
|
var m = Buffer.from(data);
|
||||||
if (obj.queue.length) { last_sender = obj.queue[0].sender; }
|
var last_sender = null;
|
||||||
if (binoutput !== "bin") { m = m.toString(); }
|
if (obj.queue.length) { last_sender = obj.queue[0].sender; }
|
||||||
var msgout = obj.dequeue() || {};
|
if (binoutput !== "bin") { m = m.toString(); }
|
||||||
msgout.payload = m;
|
var msgout = obj.dequeue() || {};
|
||||||
msgout.port = port;
|
msgout.payload = m;
|
||||||
obj._emitter.emit('data',
|
msgout.port = port;
|
||||||
msgout,
|
obj._emitter.emit('data', msgout, last_sender);
|
||||||
last_sender);
|
}
|
||||||
|
active = (waitfor === "") ? true : false;
|
||||||
}
|
}
|
||||||
|
|
||||||
for (var z=0; z<d.length; z++) {
|
for (var z=0; z<d.length; z++) {
|
||||||
var c = d[z];
|
var c = d[z];
|
||||||
|
if (c === waitfor) { active = true; }
|
||||||
// handle the trivial case first -- single char buffer
|
// handle the trivial case first -- single char buffer
|
||||||
|
if (!active) { return; }
|
||||||
if ((newline === 0)||(newline === "")) {
|
if ((newline === 0)||(newline === "")) {
|
||||||
emitData(new Buffer([c]));
|
emitData(new Buffer.from([c]));
|
||||||
continue;
|
continue;
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -376,6 +394,7 @@ module.exports = function(RED) {
|
|||||||
}
|
}
|
||||||
// count bytes into a buffer...
|
// count bytes into a buffer...
|
||||||
else if (spliton === "count") {
|
else if (spliton === "count") {
|
||||||
|
newline = serialConfig.newline;
|
||||||
if ( i >= parseInt(newline)) {
|
if ( i >= parseInt(newline)) {
|
||||||
emitData(buf.slice(0,i));
|
emitData(buf.slice(0,i));
|
||||||
i=0;
|
i=0;
|
||||||
|
@ -19,7 +19,9 @@
|
|||||||
"responsetimeout": "Default response timeout",
|
"responsetimeout": "Default response timeout",
|
||||||
"ms": "ms",
|
"ms": "ms",
|
||||||
"serial": "serial",
|
"serial": "serial",
|
||||||
"none": "none"
|
"none": "none",
|
||||||
|
"start": "Optionally wait for a start character of",
|
||||||
|
"startor": ", then"
|
||||||
},
|
},
|
||||||
"placeholder": {
|
"placeholder": {
|
||||||
"serialport": "for example: /dev/ttyUSB0/"
|
"serialport": "for example: /dev/ttyUSB0/"
|
||||||
@ -41,12 +43,15 @@
|
|||||||
"ascii": "ascii strings",
|
"ascii": "ascii strings",
|
||||||
"binary": "binary buffers"
|
"binary": "binary buffers"
|
||||||
},
|
},
|
||||||
"addsplit": "add split character to output messages",
|
"addsplit": "Add character to output messages",
|
||||||
"tip": {
|
"tip": {
|
||||||
"responsetimeout": "Tip: The default response timeout can be overridden by setting msg.timeout.",
|
"responsetimeout": "Tip: The default response timeout can be overridden by setting msg.timeout.",
|
||||||
"split": "Tip: the \"Split on\" character is used to split the input into separate messages. It can also be added to every message sent out to the serial port.",
|
"split": "Tip: the \"Split on\" character is used to split the input into separate messages. Can accept chars ($), escape codes (\\n), or hex codes (0x03).",
|
||||||
"silent": "Tip: In line-silent mode timeout is restarted upon arrival of any character (i.e. inter-byte timeout).",
|
"silent": "Tip: In line-silent mode timeout is restarted upon arrival of any character (i.e. inter-byte timeout).",
|
||||||
"timeout": "Tip: In timeout mode timeout starts from arrival of first character."
|
"timeout": "Tip: In timeout mode timeout starts from arrival of first character.",
|
||||||
|
"count": "Tip: In count mode msg.count can override the configured count as long as it smaller than the configured value.",
|
||||||
|
"waitfor": "Tip: Optional. Leave blank to receive all data. Can accept chars ($), escape codes (\\n), or hex codes (0x02)." ,
|
||||||
|
"addchar": "Tip: This character is added to every message sent out to the serial port. Usually \\r or \\n."
|
||||||
},
|
},
|
||||||
"onopen": "serial port __port__ opened at __baud__ baud __config__",
|
"onopen": "serial port __port__ opened at __baud__ baud __config__",
|
||||||
"errors": {
|
"errors": {
|
||||||
|
@ -1,6 +1,6 @@
|
|||||||
{
|
{
|
||||||
"name" : "node-red-node-serialport",
|
"name" : "node-red-node-serialport",
|
||||||
"version" : "0.7.1",
|
"version" : "0.8.0",
|
||||||
"description" : "Node-RED nodes to talk to serial ports",
|
"description" : "Node-RED nodes to talk to serial ports",
|
||||||
"dependencies" : {
|
"dependencies" : {
|
||||||
"serialport" : "^7.1.4"
|
"serialport" : "^7.1.4"
|
||||||
|
Loading…
Reference in New Issue
Block a user