Vibe-wared 5 V 10×10 monochrome LED matrix with 10 mm pitch, cascaded constant-current serial drivers, multiplexed row switching, and an external controller interface.

Industrial motor controller PCB with 12V relay switching zone isolated from STM32/4G LTE logic zone by a routed vertical isolation slot on a 150x100mm 2-layer FR4 board.

Presentation concept PCB for an ESP32-S3 controlled 10-battery configurable controller with USB-C programming, monitoring, MOSFET switching placeholders, UI, controlled output, and clearly marked conceptual battery matrix sections.

Low-voltage logic-only CERILUME Phase 1 LED controller using an Arduino Nano ESP32 plug-in module, 5V logic level shifting for WS2812/SK6812 data, microphone input header, and labeled test pads. LED power distribution and high-current switching are intentionally out of scope.

Production-intent ESP32-C6 controller for WS2812B/WS2815 addressable LED strips with 5V/10A input protection, strip high-side switching, 5V data level shifting, user buttons, and antenna keepout requirements.

Low-voltage logic-only CERILUME Phase 1 LED controller using an Arduino Nano ESP32 plug-in module, 5V logic level shifting for WS2812/SK6812 data, microphone input header, and labeled test pads. LED power distribution and high-current switching are intentionally out of scope.

Smart Wellhead Controller V1.1: ESP32 + LoRa Industrial IoT Node with Solar Power, Deep-Sleep Leak Sensing, and OLED HMI. Now upgraded with a solar charging and battery management stage featuring a TP4056/CN3791 charger IC, power-path switching, Li-ion battery protection, and integrated 3.3 V rail supply. #PowerBlock #SolarCharging #BMS

Single-channel Universal Input schematic with LM76202 field protection, AD7708 ADC measurement core, CD4066 mode switching, HC595 control mapping, and comparator-backed digital input support for DI, analog, 0-10 V, 0-20 mA, resistance, RTD, and thermistor modes.