Knock Sensor Module with LED
R21,95
Specification:
1. Weight: 3g
2. Main color: Black
3. Size: 30x18x6mm (approx)
4. Type: voltage regulator
5. Application: DIY; electronic products; STEM education
6. Pin numbers: 3 pin
7. Knock sensor module and a digital 13 interface, built-in LED a simple circuit to produce     percussion flasher.
8. Interface comes with digital LED, will knock sensor connected digital 3 interface, when  percussion sensor senses measure to percussive signals, LED flashing light.
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