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…
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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…
Crypto-Agility Without a Redesign: The "Soft-Fade-Out" Pattern for Legacy IoT Silicon
Most conversations about CRA, DORA, and NIS2 compliance for IoT hardware boil down to one uncomfortable binary: redesign the board around newer, sec…
Architecting Mainline-Friendly Products
Mainline-friendly products are designed so their board support lives in upstream Linux, U-Boot, and standard build systems instead of a vendor fork.…
Devres: How Managed Device Resources Work in the Linux Kernel
Devres is the kernel's mechanism for managed device resources: every devm_* allocation is recorded on a per-device list, and the driver core release…
How to Build an Embedded Linux Lab From Scratch
You do not need expensive equipment to build an embedded Linux lab. Start in QEMU with no hardware at all, then add one well-documented board and a…
Thermoelectric Energy Harvesting for Batteryless IoT Sensors
Industrial motors continuously reject energy as heat. Under the right conditions, a small part of that heat can power the sensor used to monitor the…
What Actually Happens Between "Export Gerbers" and a Physical PCB Showing Up at Your Door
If you've ever designed a board in KiCad, EasyEDA, or Altium, clicked "Export Gerbers," uploaded a zip file to a fab house, and then a couple weeks…
7 Tuya Matter Pitfalls That Will Kill Your Certification (And How We Avoided Them)
# 7 Tuya Matter Pitfalls That Will Kill Your Certification (And How We Avoided Them) We have shipped several Tuya Matter products over the past eigh…
The Chip That Has No ADC but Still Knows When Its Battery Is Low
Somewhere out in the field, a tiny battery-powered sensor is quietly dying. No warning light, no alert, nothing. One day it just stops responding, a…
Tesla Built the First Wireless Remote Control
In 1898, years before radio broadcasting existed and decades before anyone used the word "electronics," Nikola Tesla stood in front of a crowd at Ma…
Mastering USB Type-C: Power, Data, and Alternate Modes for 2024 Developers
Originally published on tamiz.pro . Understanding USB Type-C's Architecture USB Type-C's reversible connector design hides a complex array of 24 pin…
Most Embedded CI Stops One Step Too Early
Software teams have spent years making CI feel normal. A pull request builds automatically. Unit tests run automatically. Static analysis, linting,…
Choosing an LCD Panel for Embedded Systems: IPS vs TN Technology Explained
When designing an embedded device, selecting the right LCD panel is often more complicated than simply choosing a display size or resolution. The pa…
Fleet-Scale Robotics: Reliable USB Device Binding on NVIDIA Jetson Orin
If you have ever built an autonomous mobile robot, you have likely run into the dreaded "Shuffled USB Port" problem. You boot up your robot, fire up…