DFRobot Gravity Flexible Piezo Film Vibration Sensor Module High-Sensitivity Vibration Detection

Descriptions:

This DFRobot Gravity Flexible Piezo Film Vibration Sensor is a versatile, Arduino-compatible module designed to detect vibrations, flex, impacts, and even touch. It combines a flexible piezo film element with a converter board for easy integration.

The piezo film itself consists of a thin, 28µm piezoelectric PVDF polymer film with screen-printed silver ink electrodes, laminated to a 0.125mm polyester substrate. This flexible film generates a high voltage (approximately ±90V) when bent or displaced, making it highly sensitive to mechanical stress. Direct contact with the film causes deflection, effectively turning it into a flexible switch capable of directly triggering MOSFET or CMOS circuits.

The module features the plug-and-play Gravity 3-pin interface and provides both digital and analog outputs, making it adaptable to a wide range of applications.  Its sensitivity is adjustable via an on-board potentiometer, allowing you to fine-tune the detection threshold for both strong shocks and subtle vibrations.  Furthermore, the piezo film's wide dynamic range (0.001Hz to 1000MHz) ensures excellent performance across a broad frequency spectrum.

Specifications:

• Operating Voltage: 5V
• Interface Type: Gravity PH2.0 3Pin interface
• Operating Temperature: 0 ° C to 85 ° C
• Storage Temperature: -40 ° C to 85 ° C

Features:

• Withstands high-impact forces.
• A high-temperature version (up to 125°C) is available for custom orders.
• Choose between no-mass and with-mass configurations.

Applications:

• Vibration Sensing in Washing Machine.
• Low Power Wakeup Switch.
• Low-Cost Vibration Sensing.
• Car Alarms.
• Body Movement.
• Security Systems.

Package Included:

1 x DFRobot Gravity Flexible Piezo Film Vibration Sensor