NOTE: Updates for this project have been moved to https://git.steakelectronics.com/adminguy/Electronics_Projects_2019 The PCB files can also be found there.
A ZMHW Motion Sensor Project Work Log
Using a Sick WS15-D1130 Infrared Diode and receiver to act as a hardware motion detection sensor for Zoneminder.
Then trying a HFS-DC06H Microwave sensor. Both work well.
NOTE: Requires UIPEthernet Library. In recent Arduino IDE: Manage Libraries - UIPEthernet