# Need help creating a percentage timer

**URL:** <https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619>\
**Category:** General\
**Created:** [18 February 2022 18:46 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619 "2022-02-18T18:46:52Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![gysief](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gysief/32/106750_2.png) [@gysief](https://discourse.nodered.org/u/gysief)\
**Post date:** [18 February 2022 18:46 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/1 "2022-02-18T18:46:52Z")

</div>

**Hi Everybody.**  
My first post ever

So I am a bit new. I need to make a percentage time with a UI like a slider (with value on top) or something. The slide rage must me 0 - 100%.  
The timer must never stop unless it receive a Stop or start payload.  
The interval are 60sec.  
How it works.  
So if the timer is set to 100% is must stay on (59sec "on", 1sec "off"), if set to 50% it will run 30sec "on", 30sec "off". When set to 25% it must stay "on" 15sec and 45sec "off" ect.

Like the one found in pivots. **Just a link**  
[HQ4E03S48Z1, Eagle percentage timer, 60 sec, 24v DC — PIVOT PARTS NZ LTD](https://www.pivotparts.co.nz/centre-pivot-components/hq4e03s48z1-eagle-percentage-timer-60-sec-24v-dc)

Can anybody help me with this it will be **much appreciated.**  
**Kind Regards**. 😀

---

<div class="post-metadata">

**Author:** ![HaroldPetersInskipp](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/haroldpetersinskipp/32/42319_2.png) [@HaroldPetersInskipp](https://discourse.nodered.org/u/HaroldPetersInskipp)\
**Post date:** [18 February 2022 20:59 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/2 "2022-02-18T20:59:05Z")

</div>

Something like this?

```auto
[{"id":"486331473707d1f0","type":"tab","label":"Timer","disabled":false,"info":"","env":[]},{"id":"76555f3c369988cb","type":"ui_slider","z":"486331473707d1f0","name":"","label":"slider","tooltip":"","group":"ef4f2259df8e9444","order":0,"width":0,"height":0,"passthru":false,"outs":"end","topic":"topic","topicType":"msg","min":0,"max":"100","step":"1","className":"","x":290,"y":460,"wires":[["1e2ccd19d6f09df0"]]},{"id":"4f6f36549af674c8","type":"change","z":"486331473707d1f0","name":"","rules":[{"t":"set","p":"loop.maxtimeout","pt":"msg","to":"payload","tot":"msg"},{"t":"set","p":"#:(memoryOnly)::timer","pt":"flow","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":700,"y":460,"wires":[["88d8131ca2c2538c"]]},{"id":"1e2ccd19d6f09df0","type":"range","z":"486331473707d1f0","minin":"0","maxin":"100","minout":"0","maxout":"60","action":"scale","round":false,"property":"payload","name":"","x":410,"y":460,"wires":[["331eb14478eb4222"]]},{"id":"24e2543dee7d6aab","type":"debug","z":"486331473707d1f0","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":1690,"y":460,"wires":[]},{"id":"2e614df05c573784","type":"looptimer-advanced","z":"486331473707d1f0","duration":"1","units":"Second","maxloops":"60","maxtimeout":"60","maxtimeoutunits":"Second","name":"","x":1040,"y":460,"wires":[["8bf4a48ac1ee77e0"],[]]},{"id":"8ddea48acdaa427e","type":"calculator","z":"486331473707d1f0","name":"","inputMsgField":"payload","outputMsgField":"payload","operation":"dec","constant":"1","round":true,"decimals":0,"x":1390,"y":460,"wires":[["e759fa715c3c35af"]]},{"id":"8bf4a48ac1ee77e0","type":"change","z":"486331473707d1f0","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"#:(memoryOnly)::timer","tot":"flow"},{"t":"delete","p":"loop","pt":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":1220,"y":460,"wires":[["8ddea48acdaa427e"]]},{"id":"e759fa715c3c35af","type":"change","z":"486331473707d1f0","name":"","rules":[{"t":"set","p":"#:(memoryOnly)::timer","pt":"flow","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":1550,"y":460,"wires":[["24e2543dee7d6aab"]]},{"id":"331eb14478eb4222","type":"calculator","z":"486331473707d1f0","name":"","inputMsgField":"payload","outputMsgField":"payload","operation":"inc","constant":"1","round":true,"decimals":0,"x":540,"y":460,"wires":[["4f6f36549af674c8"]]},{"id":"88d8131ca2c2538c","type":"calculator","z":"486331473707d1f0","name":"","inputMsgField":"loop.maxtimeout","outputMsgField":"loop.maxtimeout","operation":"dec","constant":"1","round":true,"decimals":0,"x":870,"y":460,"wires":[["2e614df05c573784"]]},{"id":"ef4f2259df8e9444","type":"ui_group","name":"Default","tab":"68441a133274969a","order":1,"disp":true,"width":"6","collapse":false,"className":""},{"id":"68441a133274969a","type":"ui_tab","name":"Slider timer","icon":"dashboard","disabled":false,"hidden":false}]

```

Not sure what you mean by on and off with a timer, but this will countdown from the desired percentage of 60 seconds until it reaches zero. You could just add a variable like msg.state to equal "on" when the value of msg.payload is anything but 0 and "off" when msg.payload equals 0.

---

<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [18 February 2022 21:09 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/3 "2022-02-18T21:09:59Z")

</div>

Have a look at node-red-contrib-timeprop, it will do the on/off cycling for you.

---

<div class="post-metadata">

**Author:** ![HaroldPetersInskipp](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/haroldpetersinskipp/32/42319_2.png) [@HaroldPetersInskipp](https://discourse.nodered.org/u/HaroldPetersInskipp)\
**Post date:** [18 February 2022 21:10 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/4 "2022-02-18T21:10:06Z")

</div>

> [@gysief](#):
>
> The timer must never stop unless it receive a Stop or start payload.  
> The interval are 60sec.

What do you want it to do when it reaches the max of 60sec? Repeat?

Do you want it to output a msg every second of "on/off", or to output a countdown? Or do you want it to send "on" once and then send "off" when the time has elapsed?

---

<div class="post-metadata">

**Author:** ![StrongTown](https://avatars.discourse-cdn.com/v4/letter/s/4bbf92/32.png) [@StrongTown](https://discourse.nodered.org/u/StrongTown)\
**Post date:** [18 February 2022 21:28 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/5 "2022-02-18T21:28:54Z")

</div>

Here you go. Try this. If you change the percentage the process will have to cycle once to adapt to the new setting.

![Percent Timer](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/4/2/42756640d4200a5490e943bc770d54f248a3a2e6.jpeg)

```auto

[{"id":"06a5897c9cc61dd0","type":"function","z":"d867d702.3f5658","name":"% Timer","func":"// initialize counter\nif (typeof (context.counter) === 'undefined') context.counter = flow.get(\"Counter\") || 0; \n// initialize percentage but it is set (and saved) by slider\nvar percentage = flow.get(\"Percent\") || 100; \n// initialize control\nif (typeof (context.control) === 'undefined') context.control = flow.get(\"Control\") || true; // default is run\n// increment counter\nif (msg.topic === \"clock\") context.counter = context.counter + 1; \n// control start / stop \n\nif (msg.topic === \"control\" && msg.payload === \"toggle\")\n{\n if (!context.control) context.control = true // not running, with toggle, run now\n else // must be running, wwith toggle, stop running\n {\n context.control = false;\n flow.set(\"Control\", context.control);\n var result = { payload: false}; \n node.status({ fill: \"red\", shape: \"ring\", text: \"Stopped: \" + context.counter + \" State: \" + result.payload });\n return result; // just keep sending off \n }\n} \n\n// make percentage\nvar on_period = 60 * (percentage / 100); \n\nif (context.counter > on_period || context.counter === 60) var result = {payload: false}\nelse result = {payload: true}; \nnode.status({ fill: \"green\", shape: \"dot\", text: \"Running: \" + context.counter + \" State: \" + result.payload });\n\n\ncontext.counter = (context.counter > 59) ? 0 : context.counter; // reset minute counter\nflow.set(\"Counter\", context.counter);\n\n// watch the variables for testing\n//node.warn(context.counter + \"' \" + on_period + \", \" + percentage + \"' \" + result.payload);\nreturn result;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1016,"y":450,"wires":[["707b5dcad62a3564"]]},{"id":"3f5c419f13323657","type":"inject","z":"d867d702.3f5658","name":"clock","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"1","crontab":"","once":false,"onceDelay":0.1,"topic":"clock","payload":"true","payloadType":"bool","x":874,"y":491,"wires":[["06a5897c9cc61dd0"]]},{"id":"ccd71b87003641d5","type":"ui_slider","z":"d867d702.3f5658","name":"Slider","label":"slider","tooltip":"","group":"","order":15,"width":0,"height":0,"passthru":false,"outs":"end","topic":"percent","topicType":"str","min":0,"max":"100","step":1,"className":"","x":996,"y":396,"wires":[["c1e040157b587223"]]},{"id":"c1e040157b587223","type":"change","z":"d867d702.3f5658","name":"Save Setting","rules":[{"t":"set","p":"Percent","pt":"flow","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":1117,"y":396,"wires":[[]]},{"id":"8b06c7568b8e99b5","type":"inject","z":"d867d702.3f5658","name":"Boot","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":true,"onceDelay":0.1,"topic":"","payload":"Percent","payloadType":"flow","x":895,"y":396,"wires":[["ccd71b87003641d5"]]},{"id":"cb2ac63bafeefeb7","type":"inject","z":"d867d702.3f5658","name":"On / Off","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"control","payload":"toggle","payloadType":"str","x":875,"y":450,"wires":[["06a5897c9cc61dd0"]]},{"id":"707b5dcad62a3564","type":"debug","z":"d867d702.3f5658","name":"Result","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":1140,"y":450,"wires":[]}]

```

---

<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [18 February 2022 21:42 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/6 "2022-02-18T21:42:22Z")

</div>

You can feed the timer directly into the timeprop node. Job done.

---

<div class="post-metadata">

**Author:** ![gysief](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gysief/32/106750_2.png) [@gysief](https://discourse.nodered.org/u/gysief)\
**Post date:** [19 February 2022 09:23 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/7 "2022-02-19T09:23:07Z")

</div>

Hi HaroldPetersInskipp.

I am from south africa so may have problem explaing. But wil get maybe a video.

Yes, the time must alway run, it used in irrigation system.  
When set to 50% the time must turn on the relay for 30sec and the turn off the relay to 30sec. The total time of the timer must be 60sec and scaled from 0 - 100%.

To Start the repeating cycly the timer can receive Start payload.  
To Stop the timer it can receive the a stop payload.  
The pivot can water the land 4days not stop. Unless we get load shedding.

[Is Your Eagle Percentage Timer Working? - YouTube](https://www.youtube.com/watch?v=UcbxrK4pqhE)

Thanks Again for the help

---

<div class="post-metadata">

**Author:** ![gysief](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gysief/32/106750_2.png) [@gysief](https://discourse.nodered.org/u/gysief)\
**Post date:** [19 February 2022 09:24 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/8 "2022-02-19T09:24:44Z")

</div>

Hi StrongTown.

I all check it right away.

Still trying to learn jave.

---

<div class="post-metadata">

**Author:** ![gysief](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gysief/32/106750_2.png) [@gysief](https://discourse.nodered.org/u/gysief)\
**Post date:** [19 February 2022 10:38 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/9 "2022-02-19T10:38:55Z")

</div>

Hi StrongTown.

Your skill are crazy **COOOL**. Can you assist with ON/OFF buttons. And maybe if reboot it will remember the last state it was in. (between on or off)  
**Kind Regards**

🙂 🙃 🙂 🙃 🙂

---

<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [19 February 2022 15:38 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/10 "2022-02-19T15:38:00Z")

</div>

Have you tried the node I suggested? Disclaimer, I am the author.

---

<div class="post-metadata">

**Author:** ![StrongTown](https://avatars.discourse-cdn.com/v4/letter/s/4bbf92/32.png) [@StrongTown](https://discourse.nodered.org/u/StrongTown)\
**Post date:** [19 February 2022 15:49 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/11 "2022-02-19T15:49:12Z")

</div>

It's kinda neat that a guy stuck under the snow in Canada can help someone with irrigation in South Africa. That's awesome. Here, try this:

```auto

[{"id":"06a5897c9cc61dd0","type":"function","z":"d867d702.3f5658","name":"% Timer","func":"// initialize counter\nif (typeof (context.counter) === 'undefined') context.counter = flow.get(\"Counter\") || 0;\n// initialize percentage, set (and saved) by slider\nvar percent = (typeof (msg.payload) === 'number') ? (msg.payload / 100) : (flow.get(\"Percent\") / 100 || 1);\n// initialize last run state setting\nif (typeof(context.running) === 'undefined') context.running = flow.get(\"Run_State\"); \nif (typeof(context.running) === 'undefined') context.running = true; // default is run // default is run\n// init vars, button label layout\nvar result, led_color = \"grey\", button = { label: \"Init\", txt_color: \"gold\", led: led_color };\n// process control start / stop \nif (msg.topic === \"control\" && msg.payload === \"toggle\")\n{ context.running = (context.running) ? false : true; flow.set(\"Run_State\", context.running); }\n\nif (!context.running) // system is set to OFF, let's exit\n {\n result = { payload: false}; \n button = { label: \"Irrigation off <font color=grey> [--] \", txt_color: \"lightgrey\", led: \"grey\" };\n node.status({ fill: \"red\", shape: \"ring\", text: \"Stopped: \" + context.counter + \" State: \" + result.payload });\n return [button, result]; // just keep sending off \n }\n\n// make percentage\nvar on_period = 60 * percent; \n// process clock tick\nif (msg.topic === \"clock\") context.counter = context.counter + 1; \nvar clock = (context.counter < 10) ? \"0\"+context.counter : context.counter; // keeps clock display neater\n\nif (context.counter > on_period || context.counter === 60) { led_color = \"red\"; result = {payload: false};}\nelse { led_color = \"lime\"; result = {payload: true} }; \n\nbutton = { label: \"Irrigation on <font color=gold> [\" + clock + \"] \", txt_color: \"lime\", led: led_color };\nnode.status({ fill: \"green\", shape: \"dot\", text: \"Running: \" + context.counter + \" State: \" + result.payload });\n\ncontext.counter = (context.counter > 59) ? 0 : context.counter; // reset minute counter\nflow.set(\"Counter\", context.counter);\n\n// watch the variables for testing\n//node.warn(context.counter + \"' \" + on_period + \", \" + context.percentage + \"' \" + result.payload);\nreturn [button, result];","outputs":2,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1020,"y":500,"wires":[["78f480f45e75474b"],["9dd3ea4155430dcf"]]},{"id":"3f5c419f13323657","type":"inject","z":"d867d702.3f5658","name":"clock","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"1","crontab":"","once":false,"onceDelay":0.1,"topic":"clock","payload":"true","payloadType":"bool","x":890,"y":500,"wires":[["06a5897c9cc61dd0"]]},{"id":"c1e040157b587223","type":"change","z":"d867d702.3f5658","name":"Save Setting","rules":[{"t":"set","p":"Percent","pt":"flow","to":"payload","tot":"msg","dc":true}],"action":"","property":"","from":"","to":"","reg":false,"x":1120,"y":565,"wires":[[]]},{"id":"8b06c7568b8e99b5","type":"inject","z":"d867d702.3f5658","name":"Boot","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":true,"onceDelay":0.1,"topic":"","payload":"Percent","payloadType":"flow","x":898,"y":565,"wires":[["a160564fd65065e6"]]},{"id":"a160564fd65065e6","type":"ui_slider","z":"d867d702.3f5658","name":"Percent","label":"Timer %","tooltip":"","group":"926eb72c21d005a7","order":0,"width":0,"height":0,"passthru":false,"outs":"end","topic":"topic","topicType":"msg","min":"1","max":"100","step":1,"className":"","x":1008,"y":564,"wires":[["c1e040157b587223","06a5897c9cc61dd0"]]},{"id":"78f480f45e75474b","type":"ui_button","z":"d867d702.3f5658","name":"On / Off","group":"926eb72c21d005a7","order":15,"width":0,"height":0,"passthru":false,"label":"<font size = 3>{{msg.label}} <font color={{msg.led}}><i class=\"fa fa-circle\" ></i>","tooltip":"<font size = 3><font color = black>Click to toggle","color":"{{msg.txt_color}}","bgcolor":"black","className":"","icon":"","payload":"toggle","payloadType":"str","topic":"control","topicType":"str","x":1020,"y":455,"wires":[["06a5897c9cc61dd0"]]},{"id":"9dd3ea4155430dcf","type":"debug","z":"d867d702.3f5658","name":"","active":false,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":1175,"y":505,"wires":[]},{"id":"926eb72c21d005a7","type":"ui_group","name":"Control","tab":"bf3ff3d2dc2786e4","order":10,"disp":true,"width":"6","collapse":false,"className":""},{"id":"bf3ff3d2dc2786e4","type":"ui_tab","name":"Irrigation","icon":"dashboard","order":7,"disabled":false,"hidden":false}]

```

---

<div class="post-metadata">

**Author:** ![HaroldPetersInskipp](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/haroldpetersinskipp/32/42319_2.png) [@HaroldPetersInskipp](https://discourse.nodered.org/u/HaroldPetersInskipp)\
**Post date:** [19 February 2022 17:06 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/12 "2022-02-19T17:06:48Z")

</div>

The node suggested by @colin really is perfect for this then.

Here is a flow I've created for you using his node:

```auto
[{"id":"486331473707d1f0","type":"tab","label":"Timer","disabled":false,"info":"","env":[]},{"id":"76555f3c369988cb","type":"ui_slider","z":"486331473707d1f0","name":"","label":"slider","tooltip":"","group":"ef4f2259df8e9444","order":1,"width":0,"height":0,"passthru":false,"outs":"end","topic":"topic","topicType":"msg","min":0,"max":"100","step":"1","className":"","x":310,"y":180,"wires":[["775d0a30edf1682e","5920e75cb955c5d8"]]},{"id":"b39154fe744054f7","type":"ui_button","z":"486331473707d1f0","name":"","group":"ef4f2259df8e9444","order":2,"width":0,"height":0,"passthru":true,"label":"Start","tooltip":"","color":"","bgcolor":"","className":"","icon":"","payload":"start","payloadType":"str","topic":"topic","topicType":"msg","x":250,"y":120,"wires":[["e1eaf14dd0f75d67","17407d860044f890","0b9cee65e1d1d436"]]},{"id":"8c3d4a3b3b785562","type":"ui_button","z":"486331473707d1f0","name":"","group":"ef4f2259df8e9444","order":3,"width":0,"height":0,"passthru":true,"label":"Stop","tooltip":"","color":"","bgcolor":"","className":"","icon":"","payload":"stop","payloadType":"str","topic":"topic","topicType":"msg","x":250,"y":80,"wires":[["e1eaf14dd0f75d67","1fd169f541e736b3","0b9cee65e1d1d436"]]},{"id":"832766e356511ad9","type":"timeprop","z":"486331473707d1f0","name":"","cycleTime":"60","deadTime":0,"triggerPeriod":"1","invert":false,"x":560,"y":180,"wires":[["2ce960a75d65dc45"]]},{"id":"775d0a30edf1682e","type":"range","z":"486331473707d1f0","minin":"0","maxin":"100","minout":"0","maxout":"1","action":"scale","round":false,"property":"payload","name":"","x":430,"y":180,"wires":[["832766e356511ad9"]]},{"id":"af5485270512d6aa","type":"change","z":"486331473707d1f0","name":"0/on, 1/off","rules":[{"t":"change","p":"payload","pt":"msg","from":"1","fromt":"num","to":"off","tot":"str"},{"t":"change","p":"payload","pt":"msg","from":"0","fromt":"num","to":"on","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":840,"y":180,"wires":[["bf539a01fee57ead","b44147c113571022","78dabf7f381fe4d6"]]},{"id":"bf539a01fee57ead","type":"debug","z":"486331473707d1f0","name":"output every second","active":false,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":1140,"y":180,"wires":[]},{"id":"b44147c113571022","type":"rbe","z":"486331473707d1f0","name":"","func":"rbe","gap":"","start":"","inout":"out","septopics":true,"property":"payload","topi":"topic","x":970,"y":220,"wires":[["f0be1db8d989507d"]]},{"id":"f0be1db8d989507d","type":"debug","z":"486331473707d1f0","name":"output only when changed","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":1150,"y":220,"wires":[]},{"id":"e1eaf14dd0f75d67","type":"change","z":"486331473707d1f0","name":"","rules":[{"t":"set","p":"#:(memoryOnly)::gate","pt":"flow","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":450,"y":120,"wires":[[]]},{"id":"2ce960a75d65dc45","type":"switch","z":"486331473707d1f0","name":"flow.gate","property":"#:(memoryOnly)::gate","propertyType":"flow","rules":[{"t":"eq","v":"start","vt":"str"},{"t":"eq","v":"stop","vt":"str"}],"checkall":"true","repair":false,"outputs":2,"x":700,"y":180,"wires":[["af5485270512d6aa"],[]]},{"id":"78dabf7f381fe4d6","type":"ui_text","z":"486331473707d1f0","group":"ef4f2259df8e9444","order":5,"width":0,"height":0,"name":"","label":"Timer 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timer","icon":"dashboard","disabled":false,"hidden":false}]

```

 ![](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/2/a/2a55f952e3448dc840581f4948ac858c01b13d23.png)

 ![](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/b/9/b9afe3facd05ca82b5d1f1f24dc2161dd31788ae.png)

---

<div class="post-metadata">

**Author:** ![gysief](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gysief/32/106750_2.png) [@gysief](https://discourse.nodered.org/u/gysief)\
**Post date:** [19 February 2022 17:58 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/13 "2022-02-19T17:58:02Z")

</div>

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/e/5/e59759515250ac707d377e35c7f3f81950fa54aa.png)  
This one is asking For calculator..  
Which one must I install...

Sorry From Slow Reply, Field Electrician/Technician For WaiktoSA..

Almost never home

---

<div class="post-metadata">

**Author:** ![gysief](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gysief/32/106750_2.png) [@gysief](https://discourse.nodered.org/u/gysief)\
**Post date:** [19 February 2022 18:22 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/14 "2022-02-19T18:22:10Z")

</div>

This one works nicely.

---

<div class="post-metadata">

**Author:** ![StrongTown](https://avatars.discourse-cdn.com/v4/letter/s/4bbf92/32.png) [@StrongTown](https://discourse.nodered.org/u/StrongTown)\
**Post date:** [19 February 2022 18:28 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/15 "2022-02-19T18:28:24Z")

</div>

I am curious as to why you want a slider in percent rather then just the number of seconds you want the "on" period to be (slider select set 1 to 60) but perhaps there is a reason.

---

<div class="post-metadata">

**Author:** ![gysief](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gysief/32/106750_2.png) [@gysief](https://discourse.nodered.org/u/gysief)\
**Post date:** [19 February 2022 18:35 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/16 "2022-02-19T18:35:21Z")

</div>

The farmers are old school and dont like change. There timers has dial or +/- buttons and they all work on %-on. We have lost of cable theft on on pivot.  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/9/4/94206f10697666e4af6a0f29447c5ba46a0e0da9.jpeg).  
So the main idea to this is replacing if with "my system". That will act like an alarm.

---

<div class="post-metadata">

**Author:** ![StrongTown](https://avatars.discourse-cdn.com/v4/letter/s/4bbf92/32.png) [@StrongTown](https://discourse.nodered.org/u/StrongTown)\
**Post date:** [19 February 2022 18:37 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/17 "2022-02-19T18:37:23Z")

</div>

That looks good too. Here is my result, just seems to meet my preference for node layout and Dashboard representation..

 ![Percent Timer](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/3/d3bc91551558be2d245955f5d761154f1f869388.jpeg)

---

<div class="post-metadata">

**Author:** ![StrongTown](https://avatars.discourse-cdn.com/v4/letter/s/4bbf92/32.png) [@StrongTown](https://discourse.nodered.org/u/StrongTown)\
**Post date:** [19 February 2022 18:38 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/18 "2022-02-19T18:38:23Z")

</div>

Awesome. Thanks for the picture. Hope it all works out for you.

---

<div class="post-metadata">

**Author:** ![mickym2](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/mickym2/32/36128_2.png) [@mickym2](https://discourse.nodered.org/u/mickym2)\
**Post date:** [19 February 2022 18:39 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/19 "2022-02-19T18:39:19Z")

</div>

Why you are not using a simple range node to translate from percent in seconds?

```auto
[
    {
        "id": "b0f2a83d866e15db",
        "type": "range",
        "z": "ebe8134f6b5af26c",
        "minin": "0",
        "maxin": "100",
        "minout": "0",
        "maxout": "60",
        "action": "scale",
        "round": false,
        "property": "payload",
        "name": "",
        "x": 650,
        "y": 1320,
        "wires": [
            [
                "0ad56a79ed273b16"
            ]
        ]
    }
]

```

---

<div class="post-metadata">

**Author:** ![gysief](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gysief/32/106750_2.png) [@gysief](https://discourse.nodered.org/u/gysief)\
**Post date:** [19 February 2022 18:40 UTC](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619/20 "2022-02-19T18:40:04Z")

</div>

[HaroldPetersInskipp] used it nicely.

[Next page](https://discourse.nodered.org/t/need-help-creating-a-percentage-timer/58619.md?page=2)