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Radar fall detection and breath rate under $40

seeedstudio.com

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Re: Radar fall detection and breath rate under $40

#4
The breath rate application really got my mind turning here— replacing 2 wearables (breath monitor, fall monitor) with a wireless device, and pulse sensing can already be done by video. Imagine walking into a hospital room or grandma’s home & having full bio monitoring with no tubes or cables…

Re: Radar fall detection and breath rate under $40

#7
post #3

That board shouldn’t have passed QC? The largest SMD on the first image of the board is severely off-centre.

They probably gave the marketing department a QC reject to take pictures with, since marketing can't be bothered to worry about things like proper ESD protection =)

Re: Radar fall detection and breath rate under $40

#8

Anyone remember how viral "I've fallen and I can't get up" went? This was apparently the main use case and selling point for those devices back then, and it still is now.

See also “Apple’s new ad invites you to imagine dying alone without a Watch on your wrist”

https://theverge.com/2022/1/1/22862543/apple-watch-911-ad-fe...

Re: Radar fall detection and breath rate under $40

#9
post #3

That board shouldn’t have passed QC? The largest SMD on the first image of the board is severely off-centre.

They probably gave the marketing department a QC reject to take pictures with, since marketing can't be bothered to worry about things like proper ESD protection =)

I would be shocked if they didn't ship that. The capacitor is electrically connected to the pads, and isn't shorting the row of smaller passives above. It's $32.

Re: Radar fall detection and breath rate under $40

#10
post #3

That board shouldn’t have passed QC? The largest SMD on the first image of the board is severely off-centre.

I think you'd be surprised how lax IPC-A-610 can be. That probably just sneaks in as acceptable for class 1/2 (side overhang <=50%). Even class 3 acceptance criteria allows for 25% overhang.
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