# Pulse counting energymeter

**URL:** <https://discourse.nodered.org/t/pulse-counting-energymeter/35334>\
**Category:** General\
**Created:** [4 November 2020 17:34 UTC](https://discourse.nodered.org/t/pulse-counting-energymeter/35334 "2020-11-04T17:34:21Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![HDM](https://avatars.discourse-cdn.com/v4/letter/h/8797f3/32.png) [@HDM](https://discourse.nodered.org/u/HDM)\
**Post date:** [4 November 2020 17:34 UTC](https://discourse.nodered.org/t/pulse-counting-energymeter/35334/1 "2020-11-04T17:34:21Z")

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good day  
thank you in advance  
it is necessary to count the pulses at a time  
at a time can come and 0, 1, 2 different numbers  
how do I implement this

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**Author:** ![Paul-Reed](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/paul-reed/32/66906_2.png) [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Post date:** [4 November 2020 19:51 UTC](https://discourse.nodered.org/t/pulse-counting-energymeter/35334/2 "2020-11-04T19:51:49Z")

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Can you show us what you have tried so far, and what the result was.  
What in particular are you having problems with?

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**Author:** ![HDM](https://avatars.discourse-cdn.com/v4/letter/h/8797f3/32.png) [@HDM](https://discourse.nodered.org/u/HDM)\
**Post date:** [5 November 2020 13:39 UTC](https://discourse.nodered.org/t/pulse-counting-energymeter/35334/3 "2020-11-05T13:39:30Z")

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good day  
I don't even have any idea how to implement it and maybe implement it

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**Author:** ![HDM](https://avatars.discourse-cdn.com/v4/letter/h/8797f3/32.png) [@HDM](https://discourse.nodered.org/u/HDM)\
**Post date:** [5 November 2020 13:42 UTC](https://discourse.nodered.org/t/pulse-counting-energymeter/35334/4 "2020-11-05T13:42:00Z")

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there is some device that outputs pulses at a time of reading can be 0 pulses, 1, 4, 10 pulses

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**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:** [5 November 2020 13:56 UTC](https://discourse.nodered.org/t/pulse-counting-energymeter/35334/5 "2020-11-05T13:56:12Z")

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This might be useful. I found it by searching for `sum` on the flows site.

> **[node-red-contrib-sum](https://flows.nodered.org/node/node-red-contrib-sum)**
>
> A Node-RED node to calculate sum.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [4 January 2021 13:56 UTC](https://discourse.nodered.org/t/pulse-counting-energymeter/35334/6 "2021-01-04T13:56:24Z")

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