Power Moteino from 24v

[Lukapple]

Hi guys,
I've a Moteino controlled siren which is powered by 24v power supply.
You can find details  HERE.
I'm currently using a separate power supply for Moteino. What is the best way to use same power supply as siren? Which voltage regulator should I use?

Thanks!

[sparky]

This is the one used on the IOShield kit that I use for my sprinklers..

https://lowpowerlab.com/shop/product/133

[TomWS]

This is the one used on the IOShield kit that I use for my sprinklers..

https://lowpowerlab.com/shop/product/133

Good recommendation.  There are lower cost choices that are similar, but not packaged as conveniently.  A quick look for 5V Switching Regulator should turn up some alternatives.  Note that the 24V input voltage will have to be DC, but a simple silicon diode and bulk capacitor should take of that.  Just be sure that the input rating of the switching regulator is at least 35V.

[Lukapple]

Thanks for the quick reply! I'm going to order one right away!

[sparky]

Lukapple,

You have any more details on the board you are using and possible schematic?  Did you design and make it?

Thanks

[Lukapple]

Yes, I've designed it. See attached Eagle project.
You can find more details on the link in my first post.