# Connect wired alarm system sensors to SmartThings with a NodeMCU ESP8266 \[deprecated\]

**URL:** <https://community.smartthings.com/t/connect-wired-alarm-system-sensors-to-smartthings-with-a-nodemcu-esp8266-deprecated/76010>\
**Category:** Projects & Stories\
**Created:** [January 30, 2017, 8:46am UTC](https://community.smartthings.com/t/connect-wired-alarm-system-sensors-to-smartthings-with-a-nodemcu-esp8266-deprecated/76010 "2017-01-30T08:46:38Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![kevin](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/kevin/32/142294_2.png) [@kevin](https://community.smartthings.com/u/kevin)\
**Post date:** [February 3, 2017, 6:45pm UTC](https://community.smartthings.com/t/connect-wired-alarm-system-sensors-to-smartthings-with-a-nodemcu-esp8266-deprecated/76010/13 "2017-02-03T18:45:28Z")

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I haven’t figured out your approach here, I’ve been using @Jason_Bush’s [example](https://community.smartthings.com/t/esp8266-node-mcu-temp-contact-water-sensor/68706?u=kevin). I don’t see where you create a SmartThings endpoint for the ESP8266 to post to?

With Jason’s there is a DH for the whole ESP which creates difficulties handling multiple contact sensors. With yours you have multiple DH plus a smartapp for each ESP. My preference would be to have one DH because in my head I want to hook as many sensors to each ESP as possible 😉

I’m more of an EE / embedded software guy 🙂 I am not familiar with LUA, I’ve been using Arduino/C on mine.

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