chunter , vor 2 Monaten

@foone Is that one of those things you walk up to and it says "Please wear a mask"

woolie , vor 2 Monaten

@foone as always, thank you. It sure is fun following along.

byteborg , vor 2 Monaten

@foone
The 15W figure is scary at best...

glassbottommeg , vor 2 Monaten

@foone oh shit! One of those bullshit face scanning things they deployed everywhere during COVID lol

foone OP , vor 2 Monaten

I'M IN

foone OP , vor 2 Monaten

This thing has a lot of small PCBs. I think they prototyped this thing FAST rather than trying to cut down on the cost.

So this is probably from early in the pandemic.

foone OP , vor 2 Monaten

One module is just a camera.
It's built around a Sony STARVIS IMX327. Full HD (2 Megapixel) fixed-focus, MIPI output.

This is basically just your standard raspi camera

image/jpeg

foone OP , vor 2 Monaten

This SR602 module is an infrared motion detector

foone OP , vor 2 Monaten

Mounted next to the camera is this module, labeled IRT_621_V1.1

I believe this is an i2c thermal camera. It looks very similar to this one, which has a resolution of 16x16:
https://www.midastouchinc.com/product/thermopile_array_module/

image/jpeg

foone OP , vor 2 Monaten

Here's the weird part that made me think "oh this definitely needs to be a thread": I pulled the heatsink off and cleaned up the CPU module, and it's an HI3516.

foone OP , vor 2 Monaten

I thought that this would mean it's just a standard CPU module, but nope! it's specialized.

This is an IP Camera!
https://www.burglaryalarmsystem.com/pdf/Hi3516%20DataBrief.pdf

foone OP , vor 2 Monaten

It's an Arm Cortex A9, up to 800mhz. It can encode H.264 or MJPEG.
It can do face detection.
Apparently it is based on Linux 2.6.35?
It just needs some magnetics to talk ethernet and it can do wifi over USB or SDIO

foone OP , vor 2 Monaten

Two half-gigabyte K4B4G1646E DDR3 chips from Samsung

foone OP , vor 2 Monaten

And another Samsung chip: A 4 gigabyte KLM4G1FETE eMMC chip

foone OP , vor 2 Monaten

MXC MX35LF1GE4AB: 128 megabytes of serial flash.

foone OP , vor 2 Monaten

TMSEMI TMS1102NL:
This is the ethernet magnetics, so this thing is ready to go for wired networking

foone OP , vor 2 Monaten

And the only major chip on the big PCB is a Unisonic Technology MC34118, which is a voice switched speaker-phone circuit. So it's got some audio amps and automatic gain control.

foone OP , vor 2 Monaten

This thing has a speaker but no mic that I see.
And I guess that IP camera module has video output?

foone OP , vor 2 Monaten

Forgot to mention this chip:
Realtek RTL8201F. That's a 10/100 ethernet chip.

grumble209 , vor 2 Monaten

@foone Mark of the Beast. I hate crabchips.

amoose136 , vor 2 Monaten

@foone 🦀

byteborg , vor 2 Monaten

@foone
Friends don't let friends use Realtek... 😋

kurth , vor 2 Monaten

@foone wow they crammed everything in there except 4g

olav , vor 2 Monaten

@foone
There's a Realtek 10/100 chip in the upper left, but I don't think it has an integrated PHY

ScotttSee , vor 2 Monaten

@foone I'm guessing it was a pandemic "fever detection" cash grab and they could charge whatever they wanted for it so faster > cheaper.

I looked at similar units for my employer and they were asking between 500-1500 for them.

We passed and bought a cheap forehead thermometer instead.

rotopenguin , vor 2 Monaten

@foone well that's a fair chunk of aluminium milled out there