12v Motor control - open and close

Hi there,

Looking to replace that remote control to open and close damper (simple 12v motor) using the ESPhome platform to be integrated with HA.

Motor has red and black - switching polarity open or close.

Can I achieve that using the PWM platform ? I need to switch the polarity so the damper is open or closed.

Will probably add a DHT22 to monitor room temp and automate.

For information the IRP401 is connected through a jack with the following colors (red, black, yellow and green)

Thanks for any insights.

Michael

No. To switch the polarity you will need an H-bridge. Do a search for “12V H-bridge module”.

Thanks will do.

I would say the reversing smarts are in the motor assembly going by this diagram.

You could try to workout what is being sent down the wire from the IRP401 and emulate that with ESPHome but it would be easier to use one of the cheap ESP IR modules.

Thanks a lot for that diagram - I’m wondering where you found it. It didn’t show while doing my research.

Wouldn’t know where to start to know what’s being sent through IR.

I’ll probably try the H bridge and bypass the whole thing.

Thanks !

How about using a dual relay? That should work. I have a linear actuator working this way.

What If I want to use esphome where should I start ?

The diagram was in one of the Meitav-tec catalogues I found when looking for the damper.

If you want to use a H bridge or a pair of relays then I think it world be connected to the M- M+ terminals as in Application 2 in the diagram.

I can’t help with the ESPHome side as I have not played with that stuff yet, check the ESPHome docs for interlocks.

For an IR solution you can use an IR Rx/TX module like this cheap one or a Broadlink RM to learn the commands from your remote and the play it back with HA.