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zxcvgm.bsky.social
darell tan
@zxcvgm.bsky.social
code, electronics, security, reverse-engineering & hacks

@zxcvgm on the bird site. here to try it out.
Reposted by darell tan
Very cool research: batteringram.eu

"Low-Cost Interposer Attacks on Confidential Computing"

"Battering RAM fully breaks cutting-edge Intel SGX and AMD SEV-SNP confidential computing processor security technologies"
October 1, 2025 at 11:47 AM
Reposted by darell tan
Using an MCU’s Own Debug Peripheral to Defeat Bootrom Protection
Using an MCU’s Own Debug Peripheral to Defeat Bootrom Protection
Released in July of 2025, the Tamagotchi Paradise may look somewhat like the late 90s toy that terrorized parents and teachers alike for years, but it’s significantly more complex and …read more
hackaday.com
September 10, 2025 at 11:30 PM
Reposted by darell tan
i reverse-engineered the Raspberry Pi Compute Module 5! check it out at github.com/schlae/cm5-r...
August 24, 2025 at 8:57 PM
Reposted by darell tan
And just like that, the CM5 is *also* reverse-engineered, this time by @tubetime.bsky.social
August 25, 2025 at 7:25 PM
Reposted by darell tan
Dumping firmware from JieLi chips

JieLi chips are fairly common in Bluetooth audio devices, but they are also becoming more common in miscellaneous devices. Fortunately, retrieving the firmware is mostly straightforward.
April 14, 2025 at 5:22 PM
absolutely cursed cable ☠
April 15, 2025 at 12:38 PM
Reposted by darell tan
A coworker had the idea of making this resistance decade, then somebody decided to make a whole bunch of them and hand them out at different locations (and at customers).

And now the gerber files are available for download! […]

[Original post on mastodon.social]
March 10, 2025 at 6:40 PM
Reposted by darell tan
Great breakdown of how the "WoeMeter" from the latest Severance episode was built: make3.co/work/woemeter

@adafruit.com ESP32-S3 Feather spotted!
March 3, 2025 at 3:16 PM
Reposted by darell tan
Remember to spread a little joy, even if it will be fleeting
January 30, 2025 at 11:48 PM
heh, cheaping out on magnetics by using caps
January 13, 2025 at 9:26 AM
WTF turns out i've been using ^A in #vim like a caveman. it can actually operate on multiple lines with g^A. www.youtube.com/watch?v=U24c...
Incrementing a Sequence | Vim 🔥 Tips and Tricks
YouTube video by Josh Branchaud
www.youtube.com
November 23, 2024 at 10:50 AM