Works great, but power connection could be better
For Doorbell Modernizr
I set up the doorbell to work with HomeKit via Node-Red, and it works perfectly. My only issue is with the power supply: the product description says it's a 3.5mm barrel connector, but it's actually 5.5mm. Aside from correcting the description, I'd suggest swapping it out for USB. The power required is 5v, and even though 5.5mm barrel connectors are common, they are rarely used with 5v power supplies - they're much more commonly some multiple of 3. So it is unlikely a user will just have one lying around (vs. about ten chargers I had with the right connector but wrong voltage). Since USB is 5v, and has become the standard connector for small devices, it would be much more convenient to just use that (but preferably USB-C for robustness and future-proofing).