Articles
Notes on electronics development and engineering decisions
This section contains practical materials from engineering work: task definition, architecture choices, measurements, embedded development, power electronics, testing and notes from real projects.
Proportional Valves and Amplifiers: How Current Control Works and How to Choose a Driver
How coil current control works in a proportional valve, why dither, Imin/Imax and ramp settings matter, and how to choose a replacement driver.
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OpenBench: When the Lab Bench Becomes a Unified System
A local dashboard and API for repeatable multi-instrument measurements, synchronized capture, CSV recording and external automation.
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Custom Firmware for Xiaomi Mijia MCL02M
From ESP32 firmware analysis and I²C protocol recovery to a three-language UI, temperature control, safety state machine and local web settings.
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From a Nice-Looking PCB to a Reliable Device
How moisture, dust, interference, power supply, installation, maintenance and production volume change the architecture of an industrial device.
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ESP32, MQTT and Alice: Building Reliable Telemetry Without Open Ports
An engineering account of durable storage, application acknowledgements, store-and-forward recovery, observability and read-only Yandex Smart Home integration.
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