[SEC-01 // TECHNICAL OVERVIEW]

Embedded systems, built to survive contact with the physical world.

I design hardware/software partitions where the constraints are real: bus timing, thermal ceilings, unattended power budgets. The work below is documented as engineering specifications — what was built, what it cost, and which failure modes were designed for.

// Embedded systems: Rust no_std · STM32 / ESP32 · deterministic schedulers · CAN, SPI, I²C bring-up
// Systems architecture: Hardware/software partitioning · failure-mode design · measured trade-offs
// Static web engineering: Astro · Tailwind v4 · zero-hydration delivery · edge-verified forms

[SEC-02 // PROOF OF WORK]

All logs // 07 entries

Systems & Engineering Logs

Things built, systems broken, and working notes on the problems in between.

[SYS-01]

Modular Automotive CAN-Bus Head Unit

[PROJECT]STATUS: NOMINALREF: MCU-884REV: 2026.10

Signal path from the vehicle CAN bus through the transceiver and STM32U5 coprocessor to the cluster bridge and host snapshot ring.

Double-DIN instrument console that merges real-time CAN telemetry with decoupled host media processing, without touching the factory wiring harness.

// Compute: Raspberry Pi 5 host · STM32U5 real-time coprocessor
// Firmware: Rust no_std on Cortex-M33 · A/B OTA with rollback
// Bus: CAN 2.0B via TCAN transceivers · 500 kbit/s
// Display: 1920×720 LVDS panel · SPI instrument cluster bridge
// Frame jitter: < 1.8 ms worst case over 10M frames
// Cold boot: 1.9 s to first rendered frame
// Idle draw: 3.1 W (host suspended, cluster live)

Load entry →

[SYS-02]

Closed-Loop Tabletop CNC Control Interface

[PROJECT]STATUS: WIPREF: CNC-019REV: 2026.10

G-code motion planner with optical encoder feedback, dynamic feed-rate correction and a deterministic step pipeline for desktop parametric machining.

// Controller: ESP32-S3 dual-core · FreeRTOS tasks pinned per core
// Planner: Look-ahead trapezoidal velocity profile · 128-block buffer
// Feedback: 1000 CPR optical quadrature on all three axes
// Spindle: 1.5 kW BLDC · isolated PWM + tachometer input
// Repeatability: ±0.025 mm across 300 mm envelope
// Step jitter: 1.4 µs σ at 40 kHz step rate
// Recovery: Mid-program resume within one block

Load entry →

[COM-01 // DIRECT CHANNEL]OPEN

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