The HW-MS03 microwave sensor is almost ideal for my project, if only I could shield one side because I myself should not trigger an alarm. In my application, the sensor will stay less then 1 meter from me all night while I sleep. Other than the inconvenience of the sensor detecting my movement, I am also wondering if there are any health risks with prolonged exposure to this sensor.
I tried to shield one side with various metal objects, including a 25mm thick metal disc, one layer copper PCB, aluminium and stainless steel pots and pans.
Questions:
Is it safe to sleep in the proximity of this sensor for 8 hours every night?
How can I completely shield one side to prevent detecting my movements?
4 posts - 3 participants