https://fcarraustewart.github.io/Felipe Carrau Stewartlow-level firmware development: - Logic analyzers and oscilloscopes. - ARM (Cortex-M), nRF52, STM32 or XT esp32. - SDR GNU Radio C++ RF/DSP development. - UART, I2C, I3C, SPI, CAN, Ethernet. - RTOS Zephyr and FreeRTOS or bare-metal. - BLE, WiFi, LoRa. - Wireless sniffers and analyzers, WireShark. - OTA FW updates.This is my tech blog and diary. 2026-07-29T17:55:51+02:00 Felipe Carrau Stewart https://fcarraustewart.github.io/ Jekyll © 2026 Felipe Carrau Stewart /assets/img/favicons/favicon.ico /assets/img/favicons/favicon-96x96.png Firmware Dev Cycle, Stop waiting.2026-07-22T02:00:00+02:00 2026-07-29T16:28:42+02:00 https://fcarraustewart.github.io/posts/firmware-dev-loops-ai-agent-era/ Felipe Carrau Stewart How a Godot GDScript habit turned into a sub-2-second Zephyr hot-reload trick — trading an MPU for iteration speed so an AI coding agent can actually pair on real firmware. The Taste Space of Red Wine2026-06-18T02:00:00+02:00 2026-06-18T22:37:00+02:00 https://fcarraustewart.github.io/posts/the-taste-space-of-red-wine/ Felipe Carrau Stewart An interactive two-axis map of red wine — fruit vs earth, fresh vs dense — and a small detour into why a UI/UX person finds wine so plottable. MCU or FPGA, Zephyr or Linux: framing the VexRiscv question2026-06-17T02:00:00+02:00 2026-06-17T02:00:00+02:00 https://fcarraustewart.github.io/posts/mcu-or-fpga-zephyr-or-linux-framing-the-vexriscv-question/ Felipe Carrau Stewart First project of the GraphicsCourse — what linux-on-litex-vexriscv and AkiraOS actually teach about connecting (or collapsing) the MCU and FPGA worlds. Demos2025-09-02T00:00:00+02:00 2026-07-02T15:59:38+02:00 https://fcarraustewart.github.io/demos/ Felipe Carrau Stewart Paris Concert Radar Upcoming Paris concerts for artists I follow on Spotify — scanned daily by a GitHub Actions cron (Ticketmaster + Bandsintown), emailed to me when something new drops, and rendered here straight from _data/concerts.json. No upcoming Paris shows on the radar right now — the scanner checks Ticketmaster & Bandsintown daily for artists I follow on Spotify... From Montevideo to Paris2024-11-27T08:00:00+01:00 2024-11-27T19:27:23+01:00 https://fcarraustewart.github.io/posts/airplane/ Felipe Carrau Stewart This end-of-year and beginning 2025 I'll be living in Paris.