PSU sizing
Load list → total power and PSU with headroom
Rows: «load — V A»
ESP32 + датчики2.5 Вт
LED-стрічка 2м24.0 Вт
Реле ×43.6 Вт
Total power30.1 Вт
Recommended PSU39 Вт
Size PSUs with 20–30% headroom — switching supplies degrade at the limit. For LED strips use W/m × length. Multiple voltages = separate PSUs or DC-DC converters.