Diff: http/http-1wire-script.js

Revision:

1:c272b1fcc834

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/http/http-1wire-script.js	Fri Apr 26 14:29:44 2019 +0000
@@ -0,0 +1,102 @@
+//1wire script
+'use strict';
+
+let allRomValues        = new Map();
+let oneWireScanTime     = 0;
+let oneWireLowTweak     = 0;
+let oneWireFloatTweak   = 0;
+let oneWireReadTweak    = 0;
+let oneWireHighTweak    = 0;
+let oneWireReleaseTweak = 0;
+let oneWireTrace        = false;
+let assignedRoms        = new Array();
+let assignedNames       = new Array();
+
+function getAssignedName(rom)
+{
+    for (let i = 0; i < assignedRoms.length; i++)
+    {
+        if (assignedRoms[i] === rom) return assignedNames[i]; 
+    }
+    return '';
+}
+
+function addRomValue(line)
+{
+    if (line) allRomValues.set(line.substr(0, 16), line.substr(16));
+}
+function parseAllRomValues(topic)
+{
+    allRomValues.clear();
+    topic.split('\n').forEach(addRomValue);
+}
+function parseTimings(topic)
+{
+    let lines = topic.split('\n');
+    oneWireScanTime     = Ajax.hexToSignedInt16(lines[0]);
+    oneWireLowTweak     = Ajax.hexToSignedInt16(lines[1]);
+    oneWireFloatTweak   = Ajax.hexToSignedInt16(lines[2]);
+    oneWireReadTweak    = Ajax.hexToSignedInt16(lines[3]);
+    oneWireHighTweak    = Ajax.hexToSignedInt16(lines[4]);
+    oneWireReleaseTweak = Ajax.hexToSignedInt16(lines[5]);
+    oneWireTrace        =                       lines[6] != '0';
+}
+function addRom(line)
+{
+    if (line)
+    {
+        assignedRoms.push(line.substr(0, 16))
+        assignedNames.push(line.substr(16));
+    }
+}
+function parseAssigned(topic)
+{
+    assignedRoms  = new Array();
+    assignedNames = new Array();
+    topic.split('\n').forEach(addRom);
+}
+function parse()
+{
+    let topics = Ajax.response.split('\f');
+    parseTimings     (topics[0]);
+    parseAllRomValues(topics[1]);
+    parseAssigned    (topics[2]);
+}
+function display()
+{
+    let elem;
+    elem = Ajax.getElementOrNull('ajax-device-values');
+    if (elem) 
+    {
+        elem.textContent = '';
+        for (let [key, value] of allRomValues)
+        {
+            elem.textContent += key;
+            elem.textContent += ' '; 
+            elem.textContent += OneWire.DS18B20ToString(value);
+            elem.textContent += ' ';
+            elem.textContent += getAssignedName(key);
+            elem.textContent += '\r\n';
+        }
+    }
+    elem = Ajax.getElementOrNull('ajax-1-wire-scan-time'    ); if (elem) elem.textContent = oneWireScanTime;
+    elem = Ajax.getElementOrNull('ajax-1-wire-tweak-low'    ); if (elem) elem.textContent = oneWireLowTweak;
+    elem = Ajax.getElementOrNull('ajax-1-wire-tweak-float'  ); if (elem) elem.textContent = oneWireFloatTweak;
+    elem = Ajax.getElementOrNull('ajax-1-wire-tweak-read'   ); if (elem) elem.textContent = oneWireReadTweak;
+    elem = Ajax.getElementOrNull('ajax-1-wire-tweak-high'   ); if (elem) elem.textContent = oneWireHighTweak;
+    elem = Ajax.getElementOrNull('ajax-1-wire-tweak-release'); if (elem) elem.textContent = oneWireReleaseTweak;
+    elem = Ajax.getElementOrNull('ajax-1-wire-trace'        ); if (elem) elem.setAttribute('dir', oneWireTrace ? 'rtl' : 'ltr');
+
+    elem = Ajax.getElementOrNull('ajax-name-0'); if (elem) elem.textContent = assignedNames[0];
+    elem = Ajax.getElementOrNull('ajax-name-1'); if (elem) elem.textContent = assignedNames[1];
+    elem = Ajax.getElementOrNull('ajax-name-2'); if (elem) elem.textContent = assignedNames[2];
+    elem = Ajax.getElementOrNull('ajax-name-3'); if (elem) elem.textContent = assignedNames[3];
+    elem = Ajax.getElementOrNull('ajax-rom-0' ); if (elem) elem.value = assignedRoms[0];
+    elem = Ajax.getElementOrNull('ajax-rom-1' ); if (elem) elem.value = assignedRoms[1];
+    elem = Ajax.getElementOrNull('ajax-rom-2' ); if (elem) elem.value = assignedRoms[2];
+    elem = Ajax.getElementOrNull('ajax-rom-3' ); if (elem) elem.value = assignedRoms[3];
+}
+
+Ajax.server     = '/1wire-ajax';
+Ajax.onResponse = function() { parse(); display(); };
+Ajax.init();