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Case studies
What I built, the hard part, and how it turned out. Clients under NDA are shown by sector, not by name.
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STM32 Engine Control System (ECU)
EBabutzky GmbH, Germany
Custom ignition and engine control unit for a German automotive engineering client (EBabutzky GmbH). Real-time multi-cylinder ignition scheduling with 60-2 crank encoder, dynamic dwell control, stepper motor control board, Modbus RTU/TCP communication, and CAN diagnostics.
Magnetic Hall-Effect Keypad Gamepad — Hardware & Firmware
Japanese gaming hardware client
Hardware design and firmware for a magnetic keypad gamepad: 16 analog Hall-effect keys read through two multiplexers by DMA-driven ADC sampling on an STM32F407, with an OLED and rotary-encoder settings menu and USB to the PC.
Modbus RTU/TCP Protocol Stack on STM32
Full Modbus RTU and TCP protocol stack implementation for STM32 microcontrollers used in industrial communication, ROV multi-node bus, smart metering, and engine control integration.
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