# State change **URL:** \ **Category:** Configuration\ **Created:** [October 17, 2022, 7:25pm UTC](https://community.gladysassistant.com/t/changement-detat/7596 "2022-10-17T19:25:50Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![spenceur](https://gladys-assistant-community.b-cdn.net/user_avatar/community.gladysassistant.com/spenceur/32/1961_2.png) [@spenceur](https://community.gladysassistant.com/u/spenceur)\ **Post date:** [October 17, 2022, 7:25pm UTC](https://community.gladysassistant.com/t/changement-detat/7596/1 "2022-10-17T19:25:50Z")
Hello everyone! I wanted to know if there was a way to check a state change without a condition? I want that on each change of value of a temperature sensor, I run x scene. Only I have the impression that I don’t have the choice of having an extra condition. So indeed, I can do \>= 0 but I don’t find that clear. I just want that on each change of value I execute all my other scenes without saying that Paul is taller than Jack or whatever ^^’ ![Screenshot_20221017_211443](https://gladys-assistant-community.b-cdn.net/uploads/default/original/2X/e/ecbab0da50a8fa8c398ec82493c9e1bb4e439218.jpeg) Otherwise, is it possible to compare two numbers in Gladys (I get setpoint and temperature) I would like to compare them with each other like ![Screenshot_20221017_213420](https://gladys-assistant-community.b-cdn.net/uploads/default/original/2X/6/684b2f1d777b372e0774d74eb0ceef7ce8a67450.jpeg) How do you do it? ---
**Author:** ![lmilcent](https://gladys-assistant-community.b-cdn.net/user_avatar/community.gladysassistant.com/lmilcent/32/7023_2.png) [@lmilcent](https://community.gladysassistant.com/u/lmilcent)\ **Post date:** [October 17, 2022, 7:47pm UTC](https://community.gladysassistant.com/t/changement-detat/7596/2 "2022-10-17T19:47:20Z")
The comparison, I think that’s a feature request! In the meantime you can use the MathJS web API to calculate the difference. Tsetpoint - Tsensor \>= 0 then the setpoint is reached. ---
**Author:** ![lmilcent](https://gladys-assistant-community.b-cdn.net/user_avatar/community.gladysassistant.com/lmilcent/32/7023_2.png) [@lmilcent](https://community.gladysassistant.com/u/lmilcent)\ **Post date:** [October 17, 2022, 7:49pm UTC](https://community.gladysassistant.com/t/changement-detat/7596/3 "2022-10-17T19:49:26Z")
> [@spenceur](#): > > So indeed, I can do \>= 0 but I don’t find it clear. I think that’s right: if the sensor value is different from zero, then we trigger the scene. ---
**Author:** ![spenceur](https://gladys-assistant-community.b-cdn.net/user_avatar/community.gladysassistant.com/spenceur/32/1961_2.png) [@spenceur](https://community.gladysassistant.com/u/spenceur)\ **Post date:** [October 17, 2022, 8:10pm UTC](https://community.gladysassistant.com/t/changement-detat/7596/4 "2022-10-17T20:10:17Z")
Do you have a link to an example because when I do this I get an error : ![Screenshot_20221017_220920](https://gladys-assistant-community.b-cdn.net/uploads/default/original/2X/9/97e2bfa9bd59b2fb85d187cc64c17c4509b7556a.jpeg) ```auto Error: Syntax error in part \u0026quot; \u0026lt;20 \u0026quot; (char 6) 400 ``` Edit: it seems that on mobile when you add a variable, it adds a space each time afterwards. You just have to remove them in the end for it to be ok ^^ Edit 2: however it returns a boolean and when I try to use « continue only if » I can’t make comparisons other than int. Even true or false isn’t converted to 0 or 1 ☹ ---
**Author:** ![lmilcent](https://gladys-assistant-community.b-cdn.net/user_avatar/community.gladysassistant.com/lmilcent/32/7023_2.png) [@lmilcent](https://community.gladysassistant.com/u/lmilcent)\ **Post date:** [October 17, 2022, 9:43pm UTC](https://community.gladysassistant.com/t/changement-detat/7596/5 "2022-10-17T21:43:35Z")
Just do the calculation. The test is in Gladys using the variable that holds the calculation result. 1. Calculation with mathjs (20-21 for example) 2. Test in Gladys of the result (if result \> 0, then) ---
**Author:** ![spenceur](https://gladys-assistant-community.b-cdn.net/user_avatar/community.gladysassistant.com/spenceur/32/1961_2.png) [@spenceur](https://community.gladysassistant.com/u/spenceur)\ **Post date:** [October 18, 2022, 4:54am UTC](https://community.gladysassistant.com/t/changement-detat/7596/6 "2022-10-18T04:54:49Z")
That’s what I ended up doing, indeed 🙂 Thanks to you