Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Material	PVDF (Polyvinylidene Fluoride)
Operating Voltage	3.3V - 5V DC
Output Type	Analog & Digital (TTL)
Sensitivity	High (Adjustable via Potentiometer)
Film Thickness	28 micrometers
Comparator Chip	LM393 Dual Comparator
PCB Dimensions	32mm x 14mm
Mounting Hole Diameter	3mm
Interface	3-Pin Header (VCC, GND, OUT)
Application Range	Vibration, Touch, Sound Detection

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Best piezo kit I've tried

I have tried several different piezo sensors, and this PVDF kit offers the best balance of sensitivity and ease of use. The included headers make wiring simple.

Anonymous

Mar 24, 2026

Rating: 4/5

Solid performer

Works as advertised. The analog output gives a nice waveform when viewed on an oscilloscope. Just be careful not to bend the film too sharply during installation.

Anonymous

Mar 12, 2026

Rating: 5/5

Great for university labs

Bought five of these for our senior design project. They are robust and handle repeated testing well. The comparator threshold is easy to set.

Anonymous

Mar 09, 2026

Rating: 4/5

Good quality, clear instructions needed

The sensor itself is high quality and the PVDF film is durable. I deducted one star because the pinout wasn't clearly labeled on the board, but a quick multimeter check solved it.

Anonymous

Mar 09, 2026

Rating: 5/5

Excellent response time

I used this for a vibration monitoring prototype. The charge amplifier module provides a clean signal with minimal noise. The digital output triggers instantly.

Anonymous

Mar 02, 2026

Rating: 5/5

Perfect for Arduino projects

This kit works flawlessly with my Arduino Uno. The sensitivity adjustment is very responsive, allowing me to detect even light taps on the film. Great value for the price.

5 FAQ

Q: Is the output voltage compatible with 3.3V microcontrollers like ESP32?

A: Yes, the module operates on a 3.3V to 5V range, making it fully compatible with ESP32, ESP8266, and 3.3V Arduino boards.

Q: How do I adjust the sensitivity threshold?

A: There is a blue potentiometer on the PCB. Turn it clockwise to increase sensitivity (detect lighter touches) and counter-clockwise to decrease it.

Q: Does this kit come with connecting wires?

A: The kit includes the PCB with headers soldered, but jumper wires are not included in the standard package. You will need to provide your own Dupont wires.

Q: Can this sensor detect sound waves or only physical touch?

A: It can detect both. The PVDF film reacts to pressure changes caused by physical touch as well as air pressure variations from sound waves, though proximity to the source matters.

Q: What is the maximum temperature this film can withstand?

A: The PVDF film generally operates reliably up to approximately 80°C (176°F). Exceeding this may affect performance or damage the material.

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