Andrew Boyson / oldheating

Central Heating controller using the real time clock, PHY module for internet, 1-wire interface for temperature sensors, a system log and a configuration file

Dependencies:   net 1-wire lpc1768 crypto clock web fram log

/media/uploads/andrewboyson/heating.sch

/media/uploads/andrewboyson/heating.brd

/media/uploads/andrewboyson/eagle.epf

web-this/boiler/web-boiler-script.js

Committer:
andrewboyson
Date:
2020-06-10
Revision:
92:2d1ca4dcbca7
Parent:
91:8b192efd0288
Child:
104:46ce1aaf8be7

File content as of revision 92:2d1ca4dcbca7:

//Boiler script
'use strict';

let dateTime           = '';
let   tankTemperature  = '';
let blrOutTemperature  = '';
let blrRtnTemperature  = '';
let boilerCall         = false;
let boilerPump         = false;
let tankSetPoint       = '';
let tankHysteresis     = '';
let blrRunOnDeg        = '';
let blrRunOnTime       = '';

function parse()
{
    let lines = Ajax.response.split('\n');
      tankTemperature = Ajax.hexToSignedInt16(lines[0]);
    blrOutTemperature = Ajax.hexToSignedInt16(lines[1]);
    blrRtnTemperature = Ajax.hexToSignedInt16(lines[2]);
    boilerCall        = Ajax.hexToBit        (lines[3], 0);
    boilerPump        = Ajax.hexToBit        (lines[3], 1);
    tankSetPoint      = Ajax.hexToSignedInt16(lines[4]);
    tankHysteresis    = Ajax.hexToSignedInt16(lines[5]);
    blrRunOnDeg       = Ajax.hexToSignedInt16(lines[6]);
    blrRunOnTime      = Ajax.hexToSignedInt16(lines[7]);
}
function display()
{
    let elem;
    elem = Ajax.getElementOrNull('ajax-tank-html'      ); if (elem) elem.textContent = OneWire.DS18B20ToString(tankTemperature);
    elem = Ajax.getElementOrNull('ajax-blr-out-html'   ); if (elem) elem.textContent = OneWire.DS18B20ToString(blrOutTemperature);
    elem = Ajax.getElementOrNull('ajax-blr-rtn-html'   ); if (elem) elem.textContent = OneWire.DS18B20ToString(blrRtnTemperature);
    elem = Ajax.getElementOrNull('ajax-blr-rise-html'  ); if (elem) elem.textContent = OneWire.DS18B20ToString(blrOutTemperature - blrRtnTemperature);
    
    elem = Ajax.getElementOrNull('ajax-blr-call-toggle'); if (elem) elem.setAttribute('dir', boilerCall ? 'rtl' : 'ltr');
    elem = Ajax.getElementOrNull('ajax-blr-pump-toggle'); if (elem) elem.setAttribute('dir', boilerPump ? 'rtl' : 'ltr');
    elem = Ajax.getElementOrNull('ajax-tank-set-point' ); if (elem) elem.value = tankSetPoint;
    elem = Ajax.getElementOrNull('ajax-tank-hysteresis'); if (elem) elem.value = tankHysteresis;
    elem = Ajax.getElementOrNull('ajax-blr-run-on-deg' ); if (elem) elem.value = OneWire.DS18B20ToString(blrRunOnDeg);
    elem = Ajax.getElementOrNull('ajax-blr-run-on-time'); if (elem) elem.value = blrRunOnTime;

}

Ajax.server     = '/boiler-ajax';
Ajax.onResponse = function() { parse(); display(); };
Ajax.init();