Description

Key Features:

✔ Vibration/Impact Sensing – Detects physical shocks or knocks via spring-based mechanism.
✔ Digital Output (High/Low) – Outputs LOW when vibration is detected, otherwise HIGH.
✔ Adjustable Sensitivity – Fine-tune with the onboard potentiometer.
✔ Wide Voltage Support (3.3V–5V) – Works with most microcontrollers.
✔ Compact & Breadboard-Friendly – Standard 3-pin interface (VCC, GND, OUT).

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Applications:

• Interactive Projects – Knock-controlled lights, sound triggers.

• Security Alarms – Detect tampering or break-in attempts.

• Industrial Monitoring – Machine vibration/failure detection.

• DIY Drum Kits – Convert taps into digital signals.

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Technical Specifications:

• Operating Voltage: 3.3V–5V DC.

• Output Signal: Digital (TTL-compatible).

• Response Time: <1ms (fast reaction to impacts).

• Sensitivity Range: Adjustable (potentiometer-controlled).

• Dimensions: 20mm × 15mm.

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Wiring Guide:

• VCC → 3.3V/5V MCU power.

• GND → Ground.

• OUT → Digital input pin (e.g., Arduino D2).

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Package Includes:

• 1x KY-031 Knock Sensor Module.

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Why Choose the KY-031?

✅ Plug-and-Play – Works with simple digital reads (no ADC needed).
✅ Low-Cost & Reliable – Great for prototyping impact-sensitive systems.
✅ Easy Calibration – Adjust sensitivity for light taps or strong knocks.