# Control 4 ldz-101

**URL:** <https://community.smartthings.com/t/control-4-ldz-101/17341>\
**Category:** Connected Things\
**Created:** [June 1, 2015, 10:15pm UTC](https://community.smartthings.com/t/control-4-ldz-101/17341 "2015-06-01T22:15:41Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![superdeuter](https://avatars.discourse-cdn.com/v4/letter/s/7ea924/32.png) [@superdeuter](https://community.smartthings.com/u/superdeuter)\
**Post date:** [June 1, 2015, 10:15pm UTC](https://community.smartthings.com/t/control-4-ldz-101/17341/1 "2015-06-01T22:15:41Z")

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I have a pile of old control 4 ldx-101 zigbee based dimmers. Has anyone had any luck connecting these to a ST hub? Im not having any luck in the pairing process and wondering if its just too old and no longer compatible?

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**Author:** ![superdeuter](https://avatars.discourse-cdn.com/v4/letter/s/7ea924/32.png) [@superdeuter](https://community.smartthings.com/u/superdeuter)\
**Post date:** [June 1, 2015, 10:16pm UTC](https://community.smartthings.com/t/control-4-ldz-101/17341/2 "2015-06-01T22:16:24Z")

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sorry, ldz-101, not ldx

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**Author:** ![JDRoberts](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/jdroberts/32/56577_2.png) [@JDRoberts](https://community.smartthings.com/u/JDRoberts)\
**Post date:** [June 1, 2015, 10:33pm UTC](https://community.smartthings.com/t/control-4-ldz-101/17341/3 "2015-06-01T22:33:59Z")

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They probably won’t work: wrong zigbee profile. SmartThings is Zigbee HA 1.2 (not zigbee HA Pro, although ST does support some pro features.) the LDZ 101 is really old, not even an HA profile apparently:

> **[c4Forums.com | Largest Public Control4 Community | Powered by CytexOne](http://www.c4forums.com/topic/7466-c4-dim1-vs-ldz-102-vs-ldz-101/)**
>
> What the difference between the 3 models? (I am on 2.0.x, if that matters)

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**Author:** ![superdeuter](https://avatars.discourse-cdn.com/v4/letter/s/7ea924/32.png) [@superdeuter](https://community.smartthings.com/u/superdeuter)\
**Post date:** [June 1, 2015, 10:44pm UTC](https://community.smartthings.com/t/control-4-ldz-101/17341/4 "2015-06-01T22:44:44Z")

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i was afraid of that, oh well. thx for response…

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**Author:** ![pstuart](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/pstuart/32/82936_2.png) [@pstuart](https://community.smartthings.com/u/pstuart)\
**Post date:** [June 2, 2015, 3:19am UTC](https://community.smartthings.com/t/control-4-ldz-101/17341/5 "2015-06-02T03:19:09Z")

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They will work if they were upgraded to ZigBee pro via composer 1.8+. With my devicetype. Basic functions only.

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**Author:** ![harry51](https://avatars.discourse-cdn.com/v4/letter/h/96bed5/32.png) [@harry51](https://community.smartthings.com/u/harry51)\
**Post date:** [November 7, 2016, 11:29pm UTC](https://community.smartthings.com/t/control-4-ldz-101/17341/6 "2016-11-07T23:29:11Z")

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I have Composer 2.x - how can I check if they have Zigbee Pro? If they do how would I go about connecting them to ST? And what functionality would they have/could I develop it further?