Tag: #embedded

← All posts

• Ferrocene's Certified core — The Compiler Is ASIL D, So Why Does the Library Stop at ASIL B? ♪ Listenable

  The claim that Ferrocene's Rust compiler is 'ASIL D certified' is true, but the conclusion people usually draw from it is not. Ferrocene qualified the compiler as an ISO 26262 ASIL D / TCL 3 tool, which means 'you may de

  2026-07-16 · 23 min read #embedded#rust#ferrocene#safety#systems

• FingerScore Hardware 3 — MCU Firmware and Gesture Input Processing

  This post covers the brain of the FingerScore BLE ring device for racket-sports score keeping: the MCU firmware. From the structure of init, main loop, interrupts, and low-power sleep, through detecting buttons and gestu

  2026-06-17 · 17 min read #fingerscore#firmware#mcu#embedded#gesture

• FingerScore Hardware 4 — Designing BLE Wireless Communication (From GATT to Mobile Integration)

  We design the BLE wireless communication at the heart of the FingerScore smart-scoring ring from the ground up. GAP/GATT concepts, a custom score service, pairing security, Web Bluetooth and Android integration, power sa

  2026-06-17 · 15 min read #fingerscore#ble#bluetooth#gatt#embedded

• FingerScore Hardware 2 — Electronics Fundamentals (From Voltage, Current, and Resistance to Digital Signals) ♪ Listenable

  Everything you need from electronics fundamentals to build the FingerScore ring device, in one piece. We walk through Ohm law and voltage dividers, pull-up and pull-down resistors, capacitors, LED current-limiting calcul

  2026-06-17 · 23 min read #fingerscore#electronics#hardware#gpio#i2c

• FingerScore Hardware 5 — Power, Battery, and Circuit Design

  We cover, from scratch, the power design that actually keeps the FingerScore ring on. A power budget calculation, coin cell vs. LiPo, charging ICs and protection circuits, LDOs and buck converters, decoupling, low-power

  2026-06-17 · 16 min read #fingerscore#power#battery#lipo#circuit

• Building FingerScore Hardware 1 — System Design and Bill of Materials (BOM) ♪ Listenable

  This is part one of a hardware series on building the FingerScore ring-shaped score recorder yourself. It walks through translating product requirements into circuits, the system block diagram from sensor to MCU to radio

  2026-06-17 · 29 min read #fingerscore#hardware#electronics#ble#embedded

• Embedded Systems & Firmware Development 2026 — STM32, ESP32-C6, RP2040, Raspberry Pi 5, Arduino, PlatformIO, Zephyr RTOS, ESP-IDF Deep Dive ♪ Listenable

  Embedded development in 2026 is no longer “the world of C and assembly only.” Dual-ISA chips like STM32, ESP32-C6 and RP2350 ship in volume, Zephyr RTOS 4.0 and FreeRTOS 11 have cemented their place as default RTOSes, an

  2026-05-16 · 22 min read #english#embedded#firmware#stm32#esp32

• DuckDB Internals Deep Dive — Embedded OLAP, Vectorized Execution, Morsel-Driven Parallelism, and Storage Format (2025) ♪ Listenable

  DuckDB — the analytical engine that replaces Pandas and brings a ClickHouse-class OLAP database into your process. This post dissects DuckDB from the ground up: the journey from Mark Raasveldt and Hannes Mühleisens 2018

  2026-04-15 · 24 min read #duckdb#olap#database#columnar#vectorization

• Complete Embedded Systems & IoT Programming Guide 2025: Firmware, RTOS, Protocols

  Everything about embedded/IoT! Microcontrollers (ESP32/STM32/Arduino), RTOS (FreeRTOS/Zephyr), IoT protocols (MQTT/CoAP/LoRaWAN), sensor interfaces (I2C/SPI/UART), firmware OTA, power management, Edge AI, and security.

  2026-04-14 · 17 min read #embedded#iot#firmware#rtos#freertos

• Electronics for Developers — From Arduino to AI Robotics

  A guide for software developers expanding into the hardware world. From Arduino basics to sensor control, ESP32 IoT, and AI + hardware fusion projects. If you can write code, electronics is easier than you think.

  2026-03-03 · 7 min read #ai#arduino#electronics#embedded#iot

• Seeed Studio XIAO nRF52840 Complete Guide — BLE IoT Projects in Practice

  This post is the BLE and low-power edge-device track in the embedded hands-on series. It focuses on building sensor nodes, wearables, and TinyML experiments with Seeed Studio XIAO nRF52840, while pointing readers to the

  2026-03-02 · 5 min read #ai#xiao#nrf52840#ble#iot

• Complete Guide to Building a Drone & Control System with Arduino + Raspberry Pi

  This post is the hub article in the embedded hands-on series. It covers the full control-system picture around an Arduino + Raspberry Pi drone build, from PID control and sensor fusion to autonomy, and points readers to

  2026-03-02 · 9 min read #ai#arduino#raspberry-pi#drone#pid-control