embedded

This article summarizes the key points of Richard Hipp's 2024 talk on SQLite design principles and philosophy, explaining SQLite's embedded, single-file, low-complexity features and how it works.

The author ran Qwen3.5-0.8B on a $10-20 Amlogic A113X CPU chip with a custom C runtime, achieving 1.82 tok/s decode and under 490 MiB peak RSS, demonstrating that small LLM inference can run on deployed edge hardware without a GPU.

Comu is a compact 13×9.4mm development board built on the WCH CH32V203 RISC-V MCU that fits entirely inside a USB-A port, offering capacitive touch, LEDs, GPIO, and USB HID/serial/mass-storage capabilities. It is open-source and supports development via ch32fun, Rust, Arduino, and WCH tools.

Arduino announces stable release of Arduino Core on Zephyr 0.90.0, exiting beta, with expanded board support and automatic loader sync.

ncnn is a lightweight, open-source neural network inference framework for deploying PyTorch and ONNX models to mobile, embedded, and desktop targets without heavy dependencies, supporting CPU and Vulkan GPU backends.

The Rust on ESP Book is a comprehensive guide for embedded Rust development on Espressif products, covering project generation, tooling, and software stack structure.

AP8L is an APL-inspired programming language embedded inside PICO-8, supporting APL-like functions and basic graphics.

Wokwi is an electronic circuit simulator that runs in the browser, supporting embedded system development like ESP32. You can drag and drop to build circuits, write code (including MicroPython), and simulate Wi-Fi behavior, allowing you to validate projects without hardware.

A developer built a low-cost replacement for a $120k bowling center scoring system using ESP32 microcontrollers, costing only $1,600.

CodeSizer is a static code size profiling tool for embedded firmware that uses objdump and addr2line to attribute code size to inline call trees and generates an HTML report.

An open-source firmware project for the Raspberry Pi Pico W turns it into a driverless USB WiFi adapter via a transparent Layer-2 bridge, offering WPA2/3 support and a management console, albeit with limited USB 1.1 throughput.

TU Berlin offers a robotics masters course where students build every layer of a quadrotor flight stack from scratch in Rust, deploying to real hardware. The course has received excellent student feedback and all materials are open-source.

The author details their successful project of porting Linux to the Sega 32X, a retro gaming add-on, highlighting the technical challenges and enjoyment of board bringup.

A developer has successfully ported Linux to the Atari Jaguar console, using uClinux and the m68k architecture to work around the system's limited memory and lack of an MMU.

A community edition of Windows CE for the Sega Dreamcast that turns the on-disc CE runtime into a usable multitasking desktop with a built-in toolchain.

Hobbes is an open-source language, embedded JIT compiler, and runtime from Morgan Stanley for efficient dynamic expression evaluation, data storage, and analysis in C++ applications.

A project ports Linux to the Sega MegaDrive console using an EverDrive cartridge, providing build and boot instructions along with a custom QEMU fork for emulation.

Texas Instruments introduced the MSPM0C1104 microcontroller, a 1.38 mm² device featuring an ARM Cortex-M0+ CPU at 24MHz with 16KB flash and 1KB SRAM, designed for small form factor and low-power embedded applications.

This article shows how to build a custom front panel for the ATmega88 microcontroller and, by manually entering seven instructions, make it flash LEDs as a binary counter, vividly recreating the boot process of early minicomputers.

A project that turns the Raspberry Pi Pico W into a USB Wi-Fi adapter, providing a simple way to add wireless connectivity to devices via USB.