ref42 Development notes on toolchains, microcontrollers, experiments, and utilities. https://www.ref42.com/ 2026-08-08T00:00:00Z ref42 npnp: EDA library export CLI https://www.ref42.com/utils/npnp/ 2026-08-08T00:00:00Z 2026-07-15T00:00:00Z npnp is a Rust command-line tool that exports LCSC part data as libraries for Altium Designer and KiCad. SeEx: desktop EDA library exporter https://www.ref42.com/utils/seex/ 2026-08-08T00:00:00Z 2026-07-15T00:00:00Z SeEx is a Rust desktop application built with egui/eframe for batch-exporting LCSC parts to KiCad and Altium Designer. Configure an ESP32 template project https://www.ref42.com/esp32/esp-generate-template/ 2026-07-11T00:00:00Z 2026-07-11T00:00:00Z Use esp-generate to create an ESP32-C3 Rust starter project and configure espflash, logging, debugging, and VSCode integration. Read DHT11 temperature and humidity on ESP32-C3 https://www.ref42.com/esp32/esp32c3_dht11/ 2026-07-11T00:00:00Z 2026-07-11T00:00:00Z Read a DHT11 temperature and humidity sensor with Rust on ESP32-C3, then build, flash, and monitor it with cargo run. svd2rust https://www.ref42.com/stm32/svd2rust/ 2026-07-11T00:00:00Z 2026-07-11T00:00:00Z Generate a PAC from an STM32 SVD file with svd2rust, then run a register-level LED experiment. Set up a Cortex-M + Rust environment in one minute https://www.ref42.com/toolchain/cortex-m/ 2026-07-11T00:00:00Z 2026-07-11T00:00:00Z Common Rust target installation commands for Cortex-M cores: M0/M0+, M3, M4/M7, M4F/M7F, and M33F. Set up an ESP32 Rust environment in one minute https://www.ref42.com/toolchain/esp32-dev-setup/ 2026-07-11T00:00:00Z 2026-07-11T00:00:00Z Install esp-generate, espup, and espflash to create ESP32 Rust projects and prepare the flashing toolchain. Set up a Rust embedded environment in five minutes https://www.ref42.com/toolchain/rust_dev_base_env/ 2026-07-11T00:00:00Z 2026-07-11T00:00:00Z Install VSCode, Visual Studio Community Edition, and the Rust toolchain on Windows for embedded development. Install useful tools https://www.ref42.com/toolchain/utils/ 2026-07-11T00:00:00Z 2026-07-11T00:00:00Z Install probe-rs-tools, cargo-binutils, and llvm-tools for flashing, resetting, and analyzing Rust embedded firmware. ARMUP user guide https://www.ref42.com/utils/armup/ 2026-07-11T00:00:00Z 2026-07-11T00:00:00Z Install and update the Cortex-M embedded toolchain on Windows with ARMUP.