Gravity Flexible Piezo Film Vibration Sensor

This Gravity sensor from DFRobot consists of a flexible piezo film and a converter board. It detects vibration, bending, impacts and touch, from light vibrations to strong knocks. Depending on the switch position, the board outputs an analog or a digital signal; the switching threshold is set with the potentiometer.

Note: The connection cable can be converted to male pins with a Dupont cable M-M, so that it also fits an Arduino UNO.

Recommended Accessories:

• Dupont Cables M-M 10cm 20 Pieces

Features:

• Piezo film made of PVDF, 28 µm, with silver electrodes on a 0.125 mm polyester substrate
• A/D switch for analog or digital output
• Potentiometer for the switching threshold: towards MAX a stronger deflection is needed
• When bent, the film generates voltages of around ±90 V, the board conditions the signal
• Gravity 3-pin connector: GND, VCC, signal

Application Examples:

• Vibration and knock sensor
• Impact and touch detection on robots
• Detecting vibrations on machines
• Detecting bending and movement of flexible parts

Documentation:

• Wiki DFRobot SEN0209
• Schematic (PDF)
• Datasheet (PDF)

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: SEN0209
• Operating voltage: 5 V
• Interface: Gravity PH2.0 3-pin
• Output: analog or digital, switchable
• Frequency range piezo film: 0.001 Hz to 1000 MHz (DFRobot)
• Operating temperature: 0 °C to 85 °C
• Storage temperature: -40 °C to 85 °C
• Board dimensions: 27 × 22 mm
• Weight: 10 g

Scope of Delivery:

• 1× piezo film
• 1× converter board
• 1× Gravity digital cable 3-pin