Simulation
This flow simulates the temperature trend depending on the profile and the time for a day period. It also uses the hysteresis setting to avoid frequently turning on/off.
Note: you need to install node-red-dashboard and node-red-contrib-dsm
The charts data are persistent, see also: Persist-chart-data-over-Node-Red-restart
[{"id":"b09105b7.1e7b68","type":"ramp-thermostat","z":"6da90f72.dff58","name":"office","profile":"456075b4.05240c","hysteresisplus":"0.5","hysteresisminus":"0.5","x":150,"y":520,"wires":[["3fca2077.558f2","d3cc1e06.7017d"],["7ac01db5.679c94"],["7ac01db5.679c94"]]},{"id":"7ac01db5.679c94","type":"ui_chart","z":"6da90f72.dff58","name":"office","group":"c72a8a5.c6a7378","order":1,"width":"0","height":"0","label":"office","chartType":"line","legend":"false","xformat":"HH:mm","interpolate":"linear","nodata":"","dot":false,"ymin":"","ymax":"","removeOlder":1,"removeOlderPoints":"","removeOlderUnit":"86400","cutout":"","useOneColor":false,"colors":["#1f77b4","#ff7f0e","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"useOldStyle":false,"x":410,"y":620,"wires":[["cfeebc0.b0fbc48"],[]]},{"id":"3fca2077.558f2","type":"dsm","z":"6da90f72.dff58","name":"simulation","sm_config":"{\n \"currentState\": \"off\",\n \"states\": {\n \"off\": {\n \"start\": \"on\"\n },\n \"on\": {\n \"stop\": \"off\"\n }\n },\n \"data\": {\n \"temp_init\": 20.0,\n \"inc\": 0.05,\n \"dec\": 0.01,\n \"interval\": 60\n },\n \"methods\": {\n \"init\": [\n \"sm.calc_current = function(msg) {\",\n \" if (msg.payload) {\",\n \" sm.current += Math.random() * sm.data.inc;\",\n \" sm.fill = 'yellow';\",\n \" } else {\",\n \" sm.current -= Math.random() * sm.data.dec;\",\n \" sm.fill = 'blue';\",\n \" }\",\n \" sm.current = Math.round(sm.current * 100) / 100;\",\n \" context.set('current', sm.current);\",\n \" context.set('state', msg.payload);\",\n \" sm.text = sm.current;\",\n \"}\"\n ],\n\t\t\"start\": [\n\t\t \"msg.payload = context.get('state') || false;\",\n\t\t \"sm.current = context.get('current') || sm.data.temp_init;\",\n \"sm.fill = 'green';\",\n\t\t \"sm.text = 'interval ' + sm.data.interval;\",\n\t\t \"resume('state', msg);\"\n\t\t],\n\t\t\"stop\": [\n\t\t \"clearTimeout(timeout.interval);\",\n\t\t \"sm.fill = 'grey';\",\n\t\t \"sm.text = 'off';\",\n\t\t \"output = false;\"\n\t\t],\n \"state\": [\n \"timeout.interval = setTimeout(function() {\",\n \" sm.calc_current(msg);\",\n \" msg.topic = 'setCurrent';\",\n \" msg.payload = sm.current;\",\n \" node.send(msg);\",\n \"}, sm.data.interval*1000);\"\n ],\n \"status\": {\n \"fill\": {\n \"get\": \"sm.fill || 'grey';\"\n },\n \"shape\": \"dot\",\n \"text\": {\n \"get\": \"sm.text || 'off';\"\n }\n }\n }\n}","x":430,"y":360,"wires":[["b09105b7.1e7b68"]]},{"id":"ce92d198.0c2ce","type":"inject","z":"6da90f72.dff58","name":"","topic":"start","payload":"","payloadType":"str","repeat":"","crontab":"","once":true,"onceDelay":0.1,"x":170,"y":360,"wires":[["3fca2077.558f2"]]},{"id":"8e4cd6b9.ad5bd8","type":"inject","z":"6da90f72.dff58","name":"","topic":"stop","payload":"","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":170,"y":400,"wires":[["3fca2077.558f2"]]},{"id":"90a06c05.c462a","type":"ui_chart","z":"6da90f72.dff58","name":"","group":"c72a8a5.c6a7378","order":2,"width":"7","height":"3","label":"office 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\"cleared\"\n },\n \"stored\": {\n \"retrieve\": \"retrieved\",\n \"store\": \"stored\",\n \"clear\": \"cleared\"\n },\n \"cleared\": {\n \"retrieve\": \"retrieved\",\n \"store\": \"stored\",\n \"clear\": \"cleared\"\n }\n },\n \"data\": {\n \"name\": \"chart_data\"\n },\n \"methods\": {\n \"init\": [\n \"msg = {};\",\n \"msg.payload = context.get(sm.data.name);\",\n \"if (typeof msg.payload !== 'undefined') {\",\n \" msg.token = 'skip';\",\n \" node.send(msg);\",\n \"}\"\n ],\n \"retrieve\": [\n \"msg.payload = context.get(sm.data.name);\",\n \"if (typeof msg.payload !== 'undefined') {\",\n \" msg.token = 'skip';\",\n \"} else {\",\n \" output = false;\",\n \"}\"\n ],\n \"store\": [\n \"context.set(sm.data.name, msg.payload);\",\n \"output = false;\"\n ],\n \"clear\": [\n \"msg.payload = [];\",\n \"msg.token = 'skip';\"\n ],\n \"default\": [\n \"if (msg.token !== 'skip') {\",\n \" resume('store', msg);\",\n \"}\"\n ],\n \"status\": {\n \"fill\": {\n \"get\": \"sm.currentState === 'cleared' ? 'yellow' : 'green';\"\n },\n \"shape\": {\n \"get\": \"sm.currentState === 'cleared' ? 'ring' : 'dot';\"\n },\n \"text\": {\n \"get\": \"sm.currentState;\"\n }\n }\n }\n}","x":430,"y":560,"wires":[["90a06c05.c462a"]]},{"id":"cfeebc0.b0fbc48","type":"dsm","z":"6da90f72.dff58","name":"memory","sm_config":"{\n \"currentState\": \"retrieved\",\n \"states\": {\n \"retrieved\": {\n \"retrieve\": \"retrieved\",\n \"store\": \"stored\",\n \"clear\": \"cleared\"\n },\n \"stored\": {\n \"retrieve\": \"retrieved\",\n \"store\": \"stored\",\n \"clear\": \"cleared\"\n },\n \"cleared\": {\n \"retrieve\": \"retrieved\",\n \"store\": \"stored\",\n \"clear\": \"cleared\"\n }\n },\n \"data\": {\n \"name\": \"chart_data\"\n },\n \"methods\": {\n \"init\": [\n \"msg = {};\",\n \"msg.payload = context.get(sm.data.name);\",\n \"if (typeof msg.payload !== 'undefined') {\",\n \" msg.token = 'skip';\",\n \" node.send(msg);\",\n \"}\"\n ],\n \"retrieve\": [\n \"msg.payload = context.get(sm.data.name);\",\n \"if (typeof msg.payload !== 'undefined') {\",\n \" msg.token = 'skip';\",\n \"} else {\",\n \" output = false;\",\n \"}\"\n ],\n \"store\": [\n \"context.set(sm.data.name, msg.payload);\",\n \"output = false;\"\n ],\n \"clear\": [\n \"msg.payload = [];\",\n \"msg.token = 'skip';\"\n ],\n \"default\": [\n \"if (msg.token !== 'skip') {\",\n \" resume('store', msg);\",\n \"}\"\n ],\n \"status\": {\n \"fill\": {\n \"get\": \"sm.currentState === 'cleared' ? 'yellow' : 'green';\"\n },\n \"shape\": {\n \"get\": \"sm.currentState === 'cleared' ? 'ring' : 'dot';\"\n },\n \"text\": {\n \"get\": \"sm.currentState;\"\n }\n }\n }\n}","x":410,"y":680,"wires":[["7ac01db5.679c94"]]},{"id":"456075b4.05240c","type":"profile","z":"","name":"office","time1":"00:00","temp1":"18","time2":"04:00","temp2":"18","time3":"08:00","temp3":"20.5","time4":"12:00","temp4":"20.5","time5":"12:00","temp5":"19","time6":"12:30","temp6":"19","time7":"13:30","temp7":"20.5","time8":"19:00","temp8":"20.5","time9":"19:00","temp9":"18","time10":"23:59","temp10":"18"},{"id":"c72a8a5.c6a7378","type":"ui_group","z":"","name":"Charts","tab":"a8b1385e.93cb58","order":1,"disp":true,"width":"7","collapse":true},{"id":"a8b1385e.93cb58","type":"ui_tab","z":"","name":"ramp-themostat","icon":"dashboard"}]