I’m fiddling with a device handler for a z-wave device but I haven’t been able to get any output indicating that actions from the device are received by SmartThings.
I’ve been able to send data to the device and receive confirmation that it has been received but pushing buttons on the device results in zero output in the log.
What’s the simplest device handler I could implement in order to simply get log output when pushing a button on the device?
This is the device I’m working with:
That file only loaded a logo for me. But rather than looking for the simplest DTH, why don’t you use the Z wave Tweaker?. It’s intended for diagnostic purposes. It should work with any certified Z wave Mains powered device.
AlSo, could you give us a link to the device’s top page in the Z wave catalog rather than the manual?
Also, if it’s this device:
https://products.z-wavealliance.org/products/3399
Then pushing a button sends a message to the associated zwave device via Z wave direct association. So if you haven’t set up any associations, of course you won’t see anything happen when the button is pressed. 
If you want to look at a DTH for similar device, look at the aeotec wallmote.
[RELEASE] Aeon WallMote Dual & Quad - 2 & 4 Button
( also, you are going to need the tweaker anyway: that device has a ton of parameters that need to be set. )
That’s the device I’m working with. 
I’ve actually already played with zwave tweaker but didn’t get anything when pushing buttons. How would I go about setting up associations?
Thanks so much for your time!
You will use the tweaker to set the associations. That’s one of the things it’s for. 
The associations are then stored in the firmware of the device, so you can go back to using whatever DTH you want and the associations will remain active.
For detailed instructions on using the Tweaker, see the read me instructions for it and the information in the author thread linked to in my previous post.