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VCVictor Changvictorchang.codesJun 21 · 2 min read

Trying to use a former Zigbee Coordinator as a Repeater

Ran into an issue when trying to reuse a Sonoff ZBDongle-E Zigbee dongle as a repeater ("router" in Zigbee terms) and am sharing my findings here. Context This dongle was previously used as the actual

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SBSomnath Babu N Rbeyondbits.hashnode.devJun 13 · 6 min read

SPI Explained Beyond MOSI and MISO

Embedded Systems Fundamentals #2 Most engineers learn SPI through a simple diagram: Master ---- Slave MOSI MISO SCLK CS A transfer begins. Bytes move. The transfer completes. Simple. But inside the

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KHKhoa Hoàngblogs.night-wolf.ioMay 26 · 20 min read

Firmware Emulation With an Automated Skill Set

Firmware Emulation With an Automated Skill Set tags: firmware, emulation, qemu, reverse-engineering, cybersecurity Khoa Hoang Anh, May 25, 2026 Link repo: https://github.com/9wteam/firmware-emulation-

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DDDhruv Doharerandomembeddedstuff.hashnode.devMay 24 · 4 min read

STM32 Baremetal From Scratch — #1: Docker Setup

For this setup, I wanted a clean and reproducible STM32 baremetal development environment that didn’t depend too much on the host OS or a specific IDE. At work, I had the option to choose my OS, so I

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Xx-originating-ipx-originating-ip.hashnode.devApr 30 · 8 min read

Building 'nandtap': Dumping a Cisco Meraki Z1 NAND via Raspberry Pi GPIO Without Removing Chip from Board

TL;DR: https://github.com/x-originating-ip/nandtap As part of some personal upskilling, I wanted to get a better feel for what edge-device forensics actually looks like in practice. It’s one of those

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MMMehul Minatblog.mehul.unoApr 30 · 9 min read

BIOS vs UEFI Explained: A Complete Guide to Boot, Security, and Performance

Overview: This article explains what BIOS and UEFI are, how the boot process works, where they differ (boot, security, performance, storage), and practical guidance for checking, troubleshooting, and

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AEA3E Ecosystema3eecosystem.hashnode.devApr 24 · 3 min read

The One-Line Fix That Took 24 Hours to Find

The One-Line Fix That Took 24 Hours to Find A missing volatile qualifier. That was it. A single keyword, nine characters, buried in a 400-line ISR that corrupted sensor readings every 3,000th boot. The bug took a day to isolate because it looked like...

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Eerratahuntererratahunter.hashnode.devMar 15 · 9 min read

NCS Project Management Guide: Ditching Global Install to Reclaim Control

TL;DR Patching SDK internals in an NCS global install silently breaks every other project on your machine. Freestanding (manual ZEPHYR_BASE binding) → T2 (app owns west.yml manifest) → T3 (separate

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Eerratahuntererratahunter.hashnode.devMar 11 · 4 min read

Zephyr CMake Hell is Dead: Why I Let Google Antigravity Write My Firmware

I just burned another weekend chasing a ghost I2C timeout that wasn't even in the datasheet. Decided it was time to ditch the proprietary vendor lock-in and migrate to the modern Zephyr RTOS. My rewar

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LTLưu Tuấn Anhblog.fiscybersec.comMar 1 · 10 min read

Một backdoor Android nguy hiểm vừa được phát hiện trên hàng nghìn thiết bị toàn cầu

Tổng quan Trong những nằm gần đây, hệ sinh thái Android liên tục trở thành mục tiêu của các chiến dịch tấn công quy mô lớn. Tuy nhiên, phần lớn malware vẫn phụ thuộc vào yếu tố con người, người dùng p

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#firmware

Explore Hashnode

Trending tags this week

Trying to use a former Zigbee Coordinator as a Repeater

SPI Explained Beyond MOSI and MISO

Firmware Emulation With an Automated Skill Set

STM32 Baremetal From Scratch — #1: Docker Setup

Building 'nandtap': Dumping a Cisco Meraki Z1 NAND via Raspberry Pi GPIO Without Removing Chip from Board

BIOS vs UEFI Explained: A Complete Guide to Boot, Security, and Performance

The One-Line Fix That Took 24 Hours to Find

NCS Project Management Guide: Ditching Global Install to Reclaim Control

Zephyr CMake Hell is Dead: Why I Let Google Antigravity Write My Firmware

Một backdoor Android nguy hiểm vừa được phát hiện trên hàng nghìn thiết bị toàn cầu