Off-grid 4-channel PWM load controller with regulated 12 V output from any 12–32 V battery. Sunrise/sunset + RTC scheduling, LiFePO₄ battery protection, dimming pots and an OLED. ATtiny3216 firmware + KiCad hardware. No WiFi, no cloud, no app.
A complete engineering design of an off-grid solar PV system for a residential load in Al Ain, UAE. The project includes load analysis, PV sizing, inverter and battery selection, and uses real solar radiation data to ensure an efficient, reliable, and optimized system design.
A collection of serverless, blazing-fast web tools: Docker Compose Generator, LLM VRAM Calculator, NAS RAID Capacity, and Nginx Reverse Proxy Builder.
Two-Pi distributed dry-contact relay controller. Master handles logic, web UI, scheduling, notifications; remote slave drives the relay with an independent failsafe. Generic 2-wire input/output works for generator start/stop, pumps, valves, fans, irrigation, anything switched by a relay.
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