# Energy Meter - energy consumption

**URL:** <https://discourse.nodered.org/t/energy-meter-energy-consumption/92751>\
**Category:** General\
**Created:** [28 October 2024 20:17 UTC](https://discourse.nodered.org/t/energy-meter-energy-consumption/92751 "2024-10-28T20:17:43Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![dynamicdave](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dynamicdave/32/96_2.png) [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Post date:** [30 October 2024 07:47 UTC](https://discourse.nodered.org/t/energy-meter-energy-consumption/92751/5 "2024-10-30T07:47:35Z")

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**Edit:** Just re-read your original post/question. It sounds like you have already sorted out the sensing as you indicated your are receiving "watts". So correct me if I'm wrong - you are looking for a Node-RED node to process the "watts" to show the consumption over a period of time?

Might be worth looking at this node...

> **[node-red-contrib-watt2kwh](https://flows.nodered.org/node/node-red-contrib-watt2kwh)**
>
> A node-RED node that converts a power feed (watts) to energy (kWh).

Sorry - this might not be relevant to your needs.  
Have you looked at the PZEM-004T (available on AE and Banggood as well as other stores) ?

 ![PZEM-004T](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/4/0/40bd6194f01fc50a5d788b8e44104fdcddaa0eec.png)  
The split-ring clamp goes around the 'live' cable of the device you want to measure.  
The unit provides a TTL Mod-Bus interface that can be connected to low-cost microcontroller (e.g. ESP32-S2-Mini, ESP32-C3-Super-Mini, etc..) which can be flashed with Tasmota to send the readings to Node-RED using MQTT protocol. Here's a link to one of my old projects.

> [@Need to write one function that will return 3 values](https://discourse.nodered.org/t/need-to-write-one-function-that-will-return-3-values/30931/9):
>
> Yes i am just trying to show real time value on gauge which i received on MQTT, i have used JSON node.. Issue has been resolved, Thank you very much all of you guys. It would be great if anyone help me on making dashboard more attractive. I have attached SS which i had made.

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