Tag: #embedded

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

  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)

  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)

  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

  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)

  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