Why Windows IPCs Fail in Harsh Telemetry Stations & How RTOS Embedded Dataloggers Solve It
TL;DR for IIoT Architects & System Integrators: Deploying consumer Mini PCs or fanless Windows Industrial PCs (IPCs) in unmanned environmental t…
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I Built an Open-Source J1939 CAN Bus Emulator (Because Vector Tools Cost Too Much)
If you've ever tried to test J1939 diagnostics tooling, integrate a telematics app, or just learn how heavy-duty vehicle networks work, you've proba…
The rules I build by
New here? Start with the overview . Before the rules, a debt. These are not mine alone; they are the labor of a whole career, and every one of them…
Building a MIL-STD-188-110 HF Modem in Modern C++: An Introduction
A weekly deep dive into a fixed-frequency serial-tone waveform, one block at a time. High-frequency (HF) radio is the communications system that ref…
How Does Call Noise Reduction Work on a Single-Microphone Phone?
On a phone with a single microphone, call noise reduction cannot work the way it does on flagship smartphones. There is no second microphone signal…
Why Do We Still Need Microcontrollers?
Computers and smartphones are becoming more powerful every year. So I've been thinking about a simple question: Why do we still need small microcont…
Web Developer = Embedded Developer: Real PHP Now Runs on the ESP32 (v1.0.0)
If you can write index.php , you can already program a microcontroller. That's not a metaphor. PHP on ESP32 just hit 1.0.0 — the first official rele…
Kernel & Embedded News: Arm64 Drops Big-Endian, Boots CPUs in Parallel
Arm64 platform direction dominated this week: Will Deacon posted v2 of the series that removes big-endian kernel support, aimed at Linux 7.4, and a…
What the Arduino VENTUNO Q Signals for Local AI and Robotics
What the Arduino VENTUNO Q Signals for Local AI and Robotics Arduino’s VENTUNO Q is a clear sign that edge AI hardware is moving beyond simple infer…
What a Linux Safety Certification Actually Covers
A Linux safety certification is a statement about one defined software configuration running on named hardware, assessed by a named body. It is not…
Every Millimetre Is Spoken For in a 2.4 mm BLE Logging Card
A sealed logging card is a thickness problem before it is an electronics problem. Every subsystem sits downstream of one decision: how the millimetr…
Evidence-Grade Telemetry: Sensor Sync, Time Bases and Idempotent Ingestion
If you are building the ingestion side of a cold chain or asset tracking platform, there is a category of bug that does not show up in staging, does…
Building an Industrial HMI and Edge Controller on STM32 with FreeRTOS and Modbus TCP
Building an Industrial HMI and Edge Controller on STM32 with FreeRTOS and Modbus TCP Industrial control demos are often judged by the screen. The mo…
Hardware Abstraction for Robotics: Connecting Sensors and Actuators
Hardware Abstraction for Robotics: Connecting Sensors and Actuators Introduction Robots interact with the physical world through hardware. Sensors p…
The State of Automotive Grade Linux in 2026: Which Release to Build
The Automotive Grade Linux distribution is not one release on one baseline. As of 26 August 2026 its release-notes page documents three listed relea…
systemd vs BusyBox init: Which Init System Fits Your Device?
For most embedded products with a fixed set of services and no user-installable software, BusyBox init is the right default: small, no dependency ch…
Pi Zero + MPU-9250: empty i2cdetect is a 3.3V problem, not a Python library
I keep seeing Pi Zero + MPU-9250 threads where SDA/SCL look right and i2cdetect is empty — or the GPIO dies after a 5V VCC. Pi GPIO is 3.3V tolerant…
Driving an Undocumented 3nm ASIC with an ESP32: Inside the First Sub-10 J/TH Open-Source Bitcoin Miner
Next week we ship the Bitaxe Naja Duo , and the spec that matters is 9.5 joules per terahash at stock. First open-source home miner under 10. But th…
Buildroot for Embedded Linux — Part 1: Your First Buildroot Root Filesystem
Buildroot builds a cross-compiler, a Linux kernel and a complete root filesystem from source, driven by one Kconfig-style configuration file. Starti…
In-Tree vs Out-of-Tree Driver: Where Your Code Should Live
For hardware your company owns and intends to ship for years, default to putting the driver in mainline and carrying only the part you have not land…
The Linux DMA API: Coherent and Streaming Mappings Explained
The Linux DMA API exists because the address a device uses is not the address the CPU uses, and because on most embedded SoCs the CPU cache is not k…
Device Tree Ownership Is Moving Up Into Firmware
On most embedded Linux products the kernel carries the description of the board. Under Arm's SystemReady Devicetree band it does not: the platform f…
LighthouseReckoning: A Lightweight LoRa Mesh Network for Arduino, ESP32 and RP2040
LighthouseReckoning LighthouseReckoning is a lightweight LoRa mesh networking library for Arduino-compatible microcontrollers, currently tested on E…
How to Use the SH-C30L USB-to-CAN Adapter with Arduino UNO and MCP2515
Controller Area Network (CAN) is one of those technologies that quietly powers a huge number of embedded systems. It is commonly found in cars, EVs,…
Reverse-Engineering SWIO: Why Existing CH32V003 Programmers Fail and How I Built One That Works
I wanted to see if an ESP32-S3 could be used as a programmer for the WCH CH32V003 instead of using a dedicated WCH-Link. The final setup is: PC → ES…
Remote Diagnostics for Low-Power IoT Devices: Stop Treating Them Like Servers
The hardest failures in low-power IoT are often not total silence. They show up as partial signals: battery voltage drifting down, RSSI getting wors…
Choosing a Root Filesystem Format for Embedded Linux
Your storage hardware narrows the choice first: raw NAND requires UBIFS on UBI; ext4 and f2fs are not candidates there. On managed flash such as eMM…
The Mindset Behind Hard Debugging
Hard debugging is rarely defeated by a lack of tools. It is defeated by three quiet habits: assuming the fault is where the symptom appears, clingin…
Kernel & Embedded News: Linux 7.2 Nears Release; Swap I/O Rework
Linux 7.2 is expected as a stable release around 16 August 2026, so teams carrying an embedded BSP should test against the release candidates now, e…
From Retrospective Liability to Proactive Capability — A Path to Crypto-Agility and Compliance with Embedded Security Requirements
NON-PAPER This paper is distributed solely for discussion purposes. It reflects an independent analytical perspective and is not presented on behalf…