EMBEDDED
ESP32 Wake-on-LAN over MQTT with ESP-IDF
Using an ESP32 and ESP-IDF to build a network-aware Wake-on-LAN trigger — power on machines remotely over MQTT without an always-on server in between.
All posts
systems
4 posts ASSEMBLY
Writing a 16-bit Real Mode Bootloader in x86 Assembly
The first 512 bytes that run when your machine powers on. A walkthrough of x86 real mode, the BIOS interrupt interface, segment:offset addressing, and what it takes to load a second stage.
C
Thread-Safe Logging in C: Lock-Free Queues and Why They're Hard
Inside ThreadSafeCLogger: how to build a high-performance logging library that doesn't serialize your threads, using per-thread SPSC ring buffers and careful memory ordering.
NETWORKING
Building a Software TCP/IP Stack from Scratch in C
A deep dive into implementing a functional TCP/IP stack entirely in software — covering Ethernet framing, ARP, IP routing, TCP state machines, and the painful lessons learned along the way.