# TV-lift in Homey **URL:** \ **Category:** Questions & Help\ **Tags:** homey-pro\ **Created:** [May 23, 2023, 1:07pm UTC](https://community.homey.app/t/tv-lift-in-homey/81014 "2023-05-23T13:07:30Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Jonas\_Poulsen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jonas_poulsen/32/77092_2.png) [@Jonas\_Poulsen](https://community.homey.app/u/Jonas_Poulsen)\ **Post date:** [May 23, 2023, 1:07pm UTC](https://community.homey.app/t/tv-lift-in-homey/81014/1 "2023-05-23T13:07:30Z")
I have a TV-lift (TS700A). To control this I use a Sonoff RF-Bridge, but this setup is not reliabel. I have found out that the up and down functions can be controlled by a wired button connected to the TV-lift´s circuit board. See the pictures. The button has 3 wires running on 5 volt. Then the left wire touches the center wire the TV-lift will go up. Then the right wire touches the center-wire the TV-lift will go down. I’m therefore looking for a double 5V relay to control the up and down function from Homey. I know this is explained here: [Tv lift met homey aansturen - #4 by Mikzorzz](https://community.homey.app/t/tv-lift-met-homey-aansturen/12676/4). But this seems to use a 230V relay, that will fry my board. But i cant find any 5V relays. I´m thinking to use a Shelly Plus 2PM that runs on 24V and then use 2 step down buck converter to go from 24 volt til 5 volt. But this also requires a 24V power supply, to provide power to the relay. To be honest, this setup seems a little clumsy. But is this setup even possible, and have I missed something important? Maybe someone has a better idea to control the tv-lift in Homey without using RF433. I will prefer a relay using WIFI or Z-wave, but this is not a requirement. Thank you. ![Print](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/f/6/f6d1dc1773eef80a9044957388e7f63f493551d1.jpeg) ---
**Author:** ![Milan\_Takacs](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/milan_takacs/32/75617_2.png) [@Milan\_Takacs](https://community.homey.app/u/Milan_Takacs)\ **Post date:** [May 23, 2023, 1:54pm UTC](https://community.homey.app/t/tv-lift-in-homey/81014/2 "2023-05-23T13:54:11Z")
You can go with this: > **[Smart Module | Double Smart Module | FIBARO Manuals](https://manuals.fibaro.com/smart-module/)** You connect the middle wire to the IN port The left wire to Q1, the right wire to Q2. But there are a lot of other solutions what can work… ---
**Author:** ![Jonas\_Poulsen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jonas_poulsen/32/77092_2.png) [@Jonas\_Poulsen](https://community.homey.app/u/Jonas_Poulsen)\ **Post date:** [May 23, 2023, 2:22pm UTC](https://community.homey.app/t/tv-lift-in-homey/81014/3 "2023-05-23T14:22:18Z")
Thank you. But this relay provide 24-30 V. The voltage between the wires from the circuit board is only 5V. Is this not a problem? ---
**Author:** ![JPe4619](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jpe4619/32/9017_2.png) [@JPe4619](https://community.homey.app/u/JPe4619)\ **Post date:** [May 23, 2023, 2:45pm UTC](https://community.homey.app/t/tv-lift-in-homey/81014/4 "2023-05-23T14:45:13Z")
> [@Jonas\_Poulsen](#): > > The voltage between the wires from the circuit board is only 5V. Is this not a problem? When you connect these 5Volt wires to the relay-dry-contacts, that is never a problem, whatever the voltage is (as long as it is not higher than the max. contact voltage). ---
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [May 24, 2023, 12:35am UTC](https://community.homey.app/t/tv-lift-in-homey/81014/5 "2023-05-24T00:35:54Z")
Like Jan says. Example, I’ve a [Shelly 1](https://www.shelly.cloud/en-nl/products/product-overview/1xs1) and it has a _dry contact_ (Dutch: potentiaal vrij), which is completely separated from the input voltage. You can power the relay with f.i. 230V mains power, and switch the 5V wire using the dry contact. ---
**Author:** ![Jonas\_Poulsen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jonas_poulsen/32/77092_2.png) [@Jonas\_Poulsen](https://community.homey.app/u/Jonas_Poulsen)\ **Post date:** [May 24, 2023, 12:14pm UTC](https://community.homey.app/t/tv-lift-in-homey/81014/6 "2023-05-24T12:14:34Z")
Now i understand. I will try with a dry contact relay. Thank you very much.