Oh. Interesting. I assumed the yoosee emulated the behavior of normal pushbutton doorbells like the DB11 or the Hikvision. In those cases, you can configure the DB11 or Hikvision to create a dead short on the power lines, just like a standard doorbell, causing the doorbell to ring. This feature ensures compatibility with existing doorbell systems. The nice thing is it will work regardless if you are using AC or DC power.
If it doesn't support this type of behavior, then an alternative solution could be to open up the case and solder leads directly to the pushbutton on the yousee and hooking them up to a 3.3V relay. I tried this alternative method for a while on the DB11, and it worked great.
Would be interesting to see if anyone who has the SC-M5 has cracked it open and can verify if soldering leads directly to the pushbutton contact is possible. I'm hoping to use my existing mechanical doorbell and would have no problem busting it open... figure I might have to anyway to tweak the focus.
My plan (unless I'm confused about how this camera works) is to hook this doorbell camera to my Lorex LNR6100 NVR via a Ubiquiti PoE Adapter and just let it record 24/7 like the other cameras in the system.
QUESTIONS:
1) Will the POE connection carry video back to the NVR or is the ENET port on the doorbell only for power to the camera? I have Cat6 at the door so I'm not interested in WiFI.
2) Obviously I'm able to monitor all the Lorex / Dahua cameras at the NVR... will I be able to monitor the SD-M5 at the NVR?
Honestly, I'm not even sure if I need the Ubiquiti adapter. Although input power to the NVR itself is 48V DC... the POE output (power to the cameras) only measures 12VDC making me think I shouldn't wouldn't have to worry about frying the doorbell. If any of this logic or my thought process is off base please let me know.