# Wiring a smoke detector

**URL:** <https://discourse.nodered.org/t/wiring-a-smoke-detector/4735>\
**Category:** Hardware\
**Created:** [10 November 2018 08:53 UTC](https://discourse.nodered.org/t/wiring-a-smoke-detector/4735 "2018-11-10T08:53:14Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![BartButenaers](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/bartbutenaers/32/10476_2.png) [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Post date:** [10 November 2018 09:30 UTC](https://discourse.nodered.org/t/wiring-a-smoke-detector/4735/4 "2018-11-10T09:30:07Z")

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> [@ghayne](#):
>
> I would put an ESP8266 board near the smoke alarm and broadcast over MQTT

Garry, when I look at the price indeed I cut put such a separate board at every sensor location. Think that is what you mean (instead of wiring N sensors to a single board)? That might be a solid solution, but then again I come back to my 3 major problems: time, time and time. Is there some kind of ESP8266 software/firmware/... available that I can communicate and control it via MQTT from my Node-RED flow. That would nice, because then I could keep my main focus on Node-RED. Really don't have time to learn programming such a board. But looks interesting !

> [@Colin](#):
>
> Why does a resistor at the pin cause disapproval from interested parties?

Colin, seems that wife firmware version 0.0 cannot handle external resistors. But you are right. I can at least try it. Will give it a try next week ...

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