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@91:8b192efd0288, 2020-06-10 (annotated)

Committer:
andrewboyson
Date:
Wed Jun 10 10:08:06 2020 +0000
Revision:
91:8b192efd0288
Parent:
53:c1bf7d9db507
Child:
92:2d1ca4dcbca7
Changed the run on residual to a fixed 4 bit fraction temperature to allow better than one degree precision.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
andrewboyson 47:229338b3adcb 1 //Boiler script
andrewboyson 47:229338b3adcb 2 'use strict';
andrewboyson 47:229338b3adcb 3
andrewboyson 91:8b192efd0288 4 let dateTime = '';
andrewboyson 91:8b192efd0288 5 let tankTemperature = '';
andrewboyson 91:8b192efd0288 6 let blrOutTemperature = '';
andrewboyson 91:8b192efd0288 7 let blrRtnTemperature = '';
andrewboyson 91:8b192efd0288 8 let boilerCall = false;
andrewboyson 91:8b192efd0288 9 let boilerPump = false;
andrewboyson 91:8b192efd0288 10 let tankSetPoint = '';
andrewboyson 91:8b192efd0288 11 let tankHysteresis = '';
andrewboyson 91:8b192efd0288 12 let blrRunOnDeg = '';
andrewboyson 91:8b192efd0288 13 let blrRunOnTime = '';
andrewboyson 47:229338b3adcb 14
andrewboyson 47:229338b3adcb 15 function parse()
andrewboyson 47:229338b3adcb 16 {
andrewboyson 47:229338b3adcb 17 let lines = Ajax.response.split('\n');
andrewboyson 91:8b192efd0288 18 tankTemperature = OneWire.parseDS18B20 (lines[0]);
andrewboyson 91:8b192efd0288 19 blrOutTemperature = OneWire.parseDS18B20 (lines[1]);
andrewboyson 91:8b192efd0288 20 blrRtnTemperature = OneWire.parseDS18B20 (lines[2]);
andrewboyson 47:229338b3adcb 21 boilerCall = Ajax.hexToBit (lines[3], 0);
andrewboyson 47:229338b3adcb 22 boilerPump = Ajax.hexToBit (lines[3], 1);
andrewboyson 47:229338b3adcb 23 tankSetPoint = Ajax.hexToSignedInt16(lines[4]);
andrewboyson 47:229338b3adcb 24 tankHysteresis = Ajax.hexToSignedInt16(lines[5]);
andrewboyson 91:8b192efd0288 25 blrRunOnDeg = OneWire.parseDS18B20 (lines[6]);
andrewboyson 47:229338b3adcb 26 blrRunOnTime = Ajax.hexToSignedInt16(lines[7]);
andrewboyson 47:229338b3adcb 27 }
andrewboyson 47:229338b3adcb 28 function display()
andrewboyson 47:229338b3adcb 29 {
andrewboyson 47:229338b3adcb 30 let elem;
andrewboyson 91:8b192efd0288 31 elem = Ajax.getElementOrNull('ajax-tank-html' ); if (elem) elem.textContent = tankTemperature.toFixed(1);
andrewboyson 91:8b192efd0288 32 elem = Ajax.getElementOrNull('ajax-blr-out-html' ); if (elem) elem.textContent = blrOutTemperature.toFixed(1);
andrewboyson 91:8b192efd0288 33 elem = Ajax.getElementOrNull('ajax-blr-rtn-html' ); if (elem) elem.textContent = blrRtnTemperature.toFixed(1);
andrewboyson 91:8b192efd0288 34 elem = Ajax.getElementOrNull('ajax-blr-rise-html' ); if (elem) elem.textContent = (blrOutTemperature - blrRtnTemperature).toFixed(1);
andrewboyson 91:8b192efd0288 35
andrewboyson 47:229338b3adcb 36 elem = Ajax.getElementOrNull('ajax-blr-call-toggle'); if (elem) elem.setAttribute('dir', boilerCall ? 'rtl' : 'ltr');
andrewboyson 47:229338b3adcb 37 elem = Ajax.getElementOrNull('ajax-blr-pump-toggle'); if (elem) elem.setAttribute('dir', boilerPump ? 'rtl' : 'ltr');
andrewboyson 47:229338b3adcb 38 elem = Ajax.getElementOrNull('ajax-tank-set-point' ); if (elem) elem.value = tankSetPoint;
andrewboyson 47:229338b3adcb 39 elem = Ajax.getElementOrNull('ajax-tank-hysteresis'); if (elem) elem.value = tankHysteresis;
andrewboyson 91:8b192efd0288 40 elem = Ajax.getElementOrNull('ajax-blr-run-on-deg' ); if (elem) elem.value = blrRunOnDeg.toFixed(1);
andrewboyson 47:229338b3adcb 41 elem = Ajax.getElementOrNull('ajax-blr-run-on-time'); if (elem) elem.value = blrRunOnTime;
andrewboyson 47:229338b3adcb 42
andrewboyson 47:229338b3adcb 43 }
andrewboyson 47:229338b3adcb 44
andrewboyson 47:229338b3adcb 45 Ajax.server = '/boiler-ajax';
andrewboyson 47:229338b3adcb 46 Ajax.onResponse = function() { parse(); display(); };
andrewboyson 47:229338b3adcb 47 Ajax.init();