Mastodawn

#Tesla vs #BYD #battery #teardown
BYD’s Blade battery design offers greater overall efficiency due to improved thermal management over Tesla’s 4680 battery 🪫
https://scitechdaily.com/engineers-took-apart-tesla-and-byd-batteries-the-results-are-surprising/

#LLZO vs #hybrid #electrolytes in #SolidState #batteries
LLZO shows limited energy density gains and faces production challenges
https://scitechdaily.com/just-hype-new-study-challenges-core-assumptions-about-solid-state-lithium-metal-batteries/
https://social.vivaldi.net/@mischiefist/114288100734498160

Crossed Wires Apr 11

It's #StreamTime with @jsbilsbrough!

Starting a new series of #Teardown - demolition and puzzle solving, what could go wrong?

Live now on:
#twitch https://cwir.es/twitch
#YouTube https://youtube.com/live/zs-Q3c2np0E?feature=share

CEOTECH.IT Apr 7

Google Pixel 9a: facile da riparare? Analisi tealdown
#Android #Batteria #Display #Google #GooglePixel #Notizie #Novità #PBKreviews #Pixel9a #Riparabilità #Riparazione #Smartphone #Smontaggio #Teardown #TechNews #Tecnologia #TensorG4

https://www.ceotech.it/google-pixel-9a-facile-da-riparare-analisi-tealdown/

Google Pixel 9a: facile da riparare? Analisi tealdown

Analisi teadown Pixel 9a by PBKreviews: cover plastica, sostituzione batteria complessa ma schermo facile da riparare. Scopri i dettagli interni.Google ha p

CeoTech

James Buchan Apr 2

Ever wonder what's inside a modern computer projector? Three main parts!

1. The colour wheel - with CMY colours and clear and what looks to be Red and Purple on this model.

2. The Lens with a primary objective lens for projecting the image and the 'combiner/secondary' for the colour which is projected onto the DLP Chip. The clear one is the objective lens that focuses the image on the screen, the colourful one is the one that reflects the colours to the DLP Chip.

3. The DLP (micro mirror) device that does the work of bouncing light out the primary (objective lens) or to the light sink that is 'wasted' and keeps light from escaping.

Each individual pixel on the screen is controlled by a very very small micro mirror that moves for each (providing an on or off pixel) which is combined with the colour wheel to create a full colour image (the micro mirrors move in sync with the colour wheel to show the correct colours as needed, all faster than we can perceive with our eyes.

Most modern cinema projectors use the same DLP technology, just on a much larger and higher quality scale.

🤯 #howthingswork #teardown

Not pictured: the HID lamp or LED device that acts as the light source and all the cooling fans.

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Pimentoad Mar 20

I pulled the heatsink off to reveal, sadly, another "dashcam" IC: MSC8328P
The accompanying flash for this one is 64Mbit I think (MD25Q64CSIG)

I was really hoping for something I could more easily get some tech specs on. I could dump the memory I guess? Maybe another time.

Next time maybe I'll do some obsolete tools I have lying around if that's of interest? I have a whole box of old imagers and write blockers and stuff.

#teardown

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Pimentoad Mar 20

Digging into the main PCB:
One side doesn't have much new to show us.
At the top left, a switch to enable the camera, USB in and out and the components of the boost converter for the USB out.
Top right is the power output switch and a SIM6500 battery charger + related components. Just below are the connectors for the battery and the wireless charging
Bottom right we have an unlabeled IC and supporting things for the LEDs and PIR

And finally, the lower left is the camera stuff.

#teardown

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Pimentoad Mar 20

On the other end we have a few things.
I've pulled out the top piece, it's a PIR sensor! The lensed plastic piece was for this. These are standard cheap motion detectors that you see all over the place, usually behind faceted plastic lenses. the board is basically a BISS0001 PIR detector chip and it's reference circuit.

Below that we have stuff that has been glued in:
A white LED with an aluminum heatsink
A camera module
An IR LED

#teardown

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Pimentoad Mar 20

The top PCB is the wireless charging circuit. These are pretty standardized. It only has power connections running back to the other board so it doesn't do anything else of interest.

The lower board is what does all the work but about half of it is just normal battery bank stuff.
#teardown

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Pimentoad Mar 20

6 screws held the other side on and now we can see why it felt so cheap: There's a bunch of empty space. This one seems to have more going on than the other unit.
#teardown

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Pimentoad Mar 20

The back is completely blank and just pries off, revealing a reset button and an SD card slot.
#teardown