4Set Automatic Irrigation DIY Kit Water Pump Soil Moisture Detection Garden Drip Watering Watering Irrigation System
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Test the relay module: connect the relay module VCC to 5V, GND to ground, IN to GND, the relay jumps, and when IN is suspended, the relay recovers,
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set of boxes, 2, with organizer, cells 13, plastic, modular system, metal locks, size: 18.6", 473x302x627 mm
