Fade in or out can be used for example to control the brightness of a lightbulb or generally to increase/decrease a value. The dsm configuration can be modified/improved without the need to publish a new version. Nevertheless it has the same performance as a node-red-contrib-node.
Go to the dsm Wiki Fade in out for more details and to get the latest version.
| [{"id":"b3c0022e.f99bc","type":"dsm","z":"6ff0723.8c6b78c","name":"fade in/out","sm_config":"{\n \"inputTrigger\": \"topic\",\n \"stateOutput\": \"current\",\n \"currentState\": \"stopped\",\n \n \"states\": {\n \"stopped\": {\n \"start\": \"started\",\n \"stop\": \"stopped\"\n },\n \"started\": {\n \"fade_in\": \"fade_in\",\n \"fade_out\": \"fade_out\",\n \"stop\": \"stopped\"\n },\n \"fade_in\": {\n \"fade_in\": \"fade_in\",\n \"stop\": \"stopped\"\n },\n \"fade_out\": {\n \"fade_out\": \"fade_out\",\n \"stop\": \"stopped\"\n }\n },\n \"data\": {\n \"initialdelay\": 0,\n \"start\": 0,\n \"end\": 1,\n \"duration\": 3000,\n \"step\": 100,\n \"unit\": \"Milliseconds\",\n \"factor\": 1\n },\n \"methods\": {\n \"init\": [\n \"sm.tick = function(tran, msg) {\",\n \" timeout.id = setTimeout(function() {\",\n \" sm.text = 'fading ' + sm.data.duration + ' ' + sm.data.unit + ' - ' + sm.data.actual;\",\n \" msg.payload = sm.data.actual;\",\n \" node.send(msg);\",\n \" resume(tran, msg);\",\n \" }, sm.data.step * sm.data.factor);\",\n \"};\",\n \"sm.factors = {'milliseconds': 1, 'seconds': 1000, 'minutes': 60000};\",\n \"sta.fill = 'grey';\"\n ],\n \"start\": [\n \"if (typeof msg.payload.initialdelay !== 'undefined') sm.data.initialdelay = msg.payload.initialdelay;\",\n \"if (typeof msg.payload.start !== 'undefined') sm.data.start = msg.payload.start;\",\n \"if (typeof msg.payload.end !== 'undefined') sm.data.end = msg.payload.end;\",\n \"if (typeof msg.payload.duration !== 'undefined') sm.data.duration = msg.payload.duration;\",\n \"if (typeof msg.payload.step !== 'undefined') sm.data.step = msg.payload.step;\",\n \"if (typeof msg.payload.unit !== 'undefined') {\",\n \" if (sm.factors.hasOwnProperty(msg.payload.unit.toLowerCase())) {\",\n \" sm.data.factor = sm.factors[msg.payload.unit.toLowerCase()];\",\n \" sm.data.unit = msg.payload.unit;\",\n \" } else {\",\n \" node.warn('>' + msg.payload.unit + '< unknown, available: Milliseconds, Seconds, Minutes');\",\n \" };\",\n \"} else {\",\n \" sm.data.factor = 1;\",\n \" sm.data.unit = 'Milliseconds';\",\n \"};\",\n \n \"clearTimeout(timeout.id);\",\n \"timeout.id = setTimeout(function() {\",\n \" sm.data.delta = (sm.data.step / sm.data.duration) * Math.abs(sm.data.start - sm.data.end);\",\n \" sm.data.actual = sm.data.start;\",\n \n \" if (sm.data.end > sm.data.start) {\",\n \" sm.text = 'fade_in';\",\n \" resume('fade_in', msg);\",\n \" } else {\",\n \" sm.text = 'fade_out';\",\n \" resume('fade_out', msg);\",\n \" };\",\n \"}, sm.data.initialdelay * sm.data.factor);\",\n \"sm.text = 'initial delay ' + sm.data.initialdelay + ' ' + sm.data.unit;\",\n \"msg.payload = sm.data.start;\",\n \"node.send(msg);\"\n ],\n \"fade_in\": [\n \"if (sm.data.actual < sm.data.end) {\",\n \" sm.data.actual = Math.round((sm.data.actual + sm.data.delta) * 100) / 100;\",\n \" if (sm.data.actual > sm.data.end) {sm.data.actual = sm.data.end;};\",\n \" sm.tick('fade_in', msg);\",\n \"} else {\",\n \" resume('stop', msg);\",\n \"};\"\n ],\n \"fade_out\": [\n \"if (sm.data.actual > sm.data.end) {\",\n \" sm.data.actual = Math.round((sm.data.actual - sm.data.delta) * 100) / 100;\",\n \" if (sm.data.actual < sm.data.end) {sm.data.actual = sm.data.end;};\",\n \" sm.tick('fade_out', msg);\",\n \"} else {\",\n \" resume('stop', msg);\",\n \"};\"\n ],\n \"stop\": [\n \"sm.text = sm.currentState;\",\n \"clearTimeout(timeout.id);\"\n ],\n \"onAfterTransition\": \"output = false;\",\n \"status\": {\n \"fill\": {\n \"get\": \"sm.currentState === 'stopped' ? 'grey': 'green';\"\n },\n \"shape\": \"dot\",\n \"text\": {\n \"get\": \"sm.text || sm.currentState;\"\n }\n }\n }\n}","x":350,"y":2200,"wires":[["4e43e7f0.d1eee8"]]},{"id":"5226bacb.b02654","type":"inject","z":"6ff0723.8c6b78c","name":"fade in","topic":"start","payload":"{\"initialdelay\":2,\"start\":0,\"end\":1,\"duration\":3,\"step\":0.2,\"unit\":\"Seconds\"}","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":150,"y":2200,"wires":[["b3c0022e.f99bc"]]},{"id":"de736c65.b889a","type":"inject","z":"6ff0723.8c6b78c","name":"fade out","topic":"start","payload":"{\"initialdelay\":2000,\"start\":1,\"end\":0,\"duration\":5000,\"step\":500}","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":140,"y":2240,"wires":[["b3c0022e.f99bc"]]},{"id":"6820c9c9.829228","type":"inject","z":"6ff0723.8c6b78c","name":"stop","topic":"stop","payload":"","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":150,"y":2280,"wires":[["b3c0022e.f99bc"]]},{"id":"4e43e7f0.d1eee8","type":"debug","z":"6ff0723.8c6b78c","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","x":510,"y":2200,"wires":[]}] |
