# Changing thermostat temperature by + or - 1 degree **URL:** \ **Category:** Questions & Help\ **Tags:** z-wave\ **Created:** [July 7, 2020, 9:44pm UTC](https://community.homey.app/t/changing-thermostat-temperature-by-or-1-degree/32154 "2020-07-07T21:44:36Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Peter\_Bittner](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_bittner/32/16698_2.png) [@Peter\_Bittner](https://community.homey.app/u/Peter_Bittner)\ **Post date:** [July 7, 2020, 9:44pm UTC](https://community.homey.app/t/changing-thermostat-temperature-by-or-1-degree/32154/1 "2020-07-07T21:44:36Z")
I am using a remotetec zwave to Ir device to control my Airconditioner. I would like to create a virtual device that would increase to temperature setting up by one degree. I’m assuming I would need a seperate VD to decrease the temperature by 1 degree. Does anyone know how I could do this, rather than open the device and dial the desired temperature. My thinking is that would be the only way that I could get this included in HomeKit and be able to increase or decrease the temperature using Siri. ---
**Author:** ![DirkG](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dirkg/32/118897_2.png) [@DirkG](https://community.homey.app/u/DirkG)\ **Post date:** [July 8, 2020, 8:56am UTC](https://community.homey.app/t/changing-thermostat-temperature-by-or-1-degree/32154/2 "2020-07-08T08:56:08Z")
I’m not sure if I understand you correctly. Increase/decrease? Unfortunately, you also explain not much about the current situation and its possibilities. Therefore my approach may be completely wrong and not realizable. You can use a virtual thermostat (App [Virtual Devices](https://homey.app/en-us/app/com.arjankranenburg.virtual/Virtual-Devices/)) to change the temperature respectively a variable via a flow. **If…** The target temperature has changed **Then…** Logic: Set variable “Temperature” (or what ever) to target temperature With a 2nd flow you can transmit the changed variable to your IR Z-Wave device. **If…** Logic: Variable “Temperature” has changed **Then…** Set IR to “Temperature” (here I don’t know what possibilities you have!?) I also don’t know if it works with HomeKit, you have to try it. Which IR device do you use? ---
**Author:** ![Peter\_Bittner](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_bittner/32/16698_2.png) [@Peter\_Bittner](https://community.homey.app/u/Peter_Bittner)\ **Post date:** [July 8, 2020, 8:34pm UTC](https://community.homey.app/t/changing-thermostat-temperature-by-or-1-degree/32154/3 "2020-07-08T20:34:23Z")
I am using a Remotetec Z-wave to IR controller. Works well using the Remotetec App installed on Homey if you open the device to change parameters. What I want to do is add a virtual device to increase or decrease the target temperature by one degree, so I can turn the temp up or down without having to open the App. I have now created a virtual thermostat. Which kind of works. How do I create a variable to set? When I select a Logic card, then select set variable there are no variables available to set. Peter > ![](https://sea1.discourse-cdn.com/flex015/user_avatar/community.athom.com/fantross/45/13257_2.png "fantross") | [fantross](https://community.homey.app/u/fantross) > July 8 | > > - | - | I’m not sure if I understand you correctly. Increase/decrease? Unfortunately, you also explain not much about the current situation and its possibilities. Therefore my approach may be completely wrong and not realizable. You can use a virtual thermostat (App [Virtual Devices](https://homey.app/en-us/app/com.arjankranenburg.virtual/Virtual-Devices/)) to change the temperature respectively a variable via a flow. **If…** The target temperature has changed **Then…** Logic: Set variable “Temperature” (or what ever) to target temperature With a 2nd flow you can transmit the changed variable to your IR Z-Wave device. **If…** Logic: Variable “Temperature” has changed **Then…** Set IR to “Temperature” (here I don’t know what possibilities you have!?) I also don’t know if it works with HomeKit, you have to try it. Which IR device do you use? ---
**Author:** ![DirkG](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dirkg/32/118897_2.png) [@DirkG](https://community.homey.app/u/DirkG)\ **Post date:** [July 9, 2020, 7:22am UTC](https://community.homey.app/t/changing-thermostat-temperature-by-or-1-degree/32154/4 "2020-07-09T07:22:13Z")
> [@Peter\_Bittner](#): > > How do I create a variable to set? When I select a Logic card, then select set variable there are no variables available to set. You have to create a variable like this in the App: - go to More (3 Dots, in the right corner) - Logic - Touch the + in the upper right corner - use the type „Number“ - create a „Name“ - Value = 0 Now you use this created variable for the flow described above. I hope that is understandable. Otherwise, please contact us again. ---
**Author:** ![Peter\_Bittner](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_bittner/32/16698_2.png) [@Peter\_Bittner](https://community.homey.app/u/Peter_Bittner)\ **Post date:** [July 10, 2020, 8:26pm UTC](https://community.homey.app/t/changing-thermostat-temperature-by-or-1-degree/32154/5 "2020-07-10T20:26:17Z")
Thanks Dirk, I get it. I had never looked at more/Logic before. Peter > ![](https://sea1.discourse-cdn.com/flex015/user_avatar/community.athom.com/fantross/45/13257_2.png "fantross") | [fantross](https://community.homey.app/u/fantross) > July 9 | > > - | - | > ![](https://sea1.discourse-cdn.com/flex015/user_avatar/community.athom.com/peter_bittner/40/16698_2.png)Peter\_Bittner: > > How do I create a variable to set? When I select a Logic card, then select set variable there are no variables available to set. You have to create a variable like this in the App: - go to More (3 Dots, in the right corner) - Logic - Touch the + in the upper right corner - use the type „Number“ - create a „Name“ - Value = 0 Now you use this created variable for the flow described above. I hope that is understandable. Otherwise, please contact us again. ---
**Author:** ![DirkG](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dirkg/32/118897_2.png) [@DirkG](https://community.homey.app/u/DirkG)\ **Post date:** [July 11, 2020, 7:30am UTC](https://community.homey.app/t/changing-thermostat-temperature-by-or-1-degree/32154/6 "2020-07-11T07:30:49Z")
Glad to hear it. So the flow works as it should? With the logic functions in combination with the variables you can realize a lot, even calculations can be done. The following link will give you a little tutorial: > [@Getting Started - Logic variables](https://community.homey.app/t/getting-started-logic-variables/20132): > > Hi everyone, in this tutorial I will tell you about logic variables and you will learn: how to create a variable the different kind of variables and; their properties and limitations some uses cases of the different types First, let’s take a look at what Athom gave us to work with, shall we? In your app, go to the ‘more’ tab and hit ‘logic’. I already have some variables in my app, so my screen looks like this: You’ll notice I made a blue mark on the printscreen, highligh… ---
**Author:** ![Peter\_Bittner](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_bittner/32/16698_2.png) [@Peter\_Bittner](https://community.homey.app/u/Peter_Bittner)\ **Post date:** [July 12, 2020, 8:29pm UTC](https://community.homey.app/t/changing-thermostat-temperature-by-or-1-degree/32154/7 "2020-07-12T20:29:22Z")
Thanks a lot. The tutorial was very good. Any other tutorials you are aware of. I haven’t redone the flows yet but I feel confidant that I now have the tools to do that. There is so much to learn with Homey. Not long ago I was ready to give up on it, but I am now starting to get it to be working as I wanted. ---
**Author:** ![DirkG](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dirkg/32/118897_2.png) [@DirkG](https://community.homey.app/u/DirkG)\ **Post date:** [July 13, 2020, 6:37am UTC](https://community.homey.app/t/changing-thermostat-temperature-by-or-1-degree/32154/8 "2020-07-13T06:37:03Z")
Sounds good. 👍🏼 Homey is probably a hobby for most people, but it shouldn’t frustrate. There is a section [Tutorials](https://community.homey.app/c/tutorials/83), just have a look. Otherwise just ask.