Comment by Avamander
2 years ago
There are some that detect heartbeat, I guess those might work. But those are mmWave, not just cheap 2.4GHz radars or PIR.
2 years ago
There are some that detect heartbeat, I guess those might work. But those are mmWave, not just cheap 2.4GHz radars or PIR.
I've got LD2410B, which are mmWave, so they should detect heartbeat (and do), but not from more than 2-3m away.
Is the LD2410B sensing range limited by the PCB antenna?
I'm not sure, it always just made sense to me that the farther away someone is, the harder it'll be to detect their small movements.
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