# Piezo Element (SEN-10293) **URL:** \ **Category:** Sparkfun\ **Created:** [21 March 2017 00:31 UTC](https://forum.core-electronics.com.au/t/piezo-element-sen-10293/823 "2017-03-21T00:31:01Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Core](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/core/32/57_2.png) [@Core](https://forum.core-electronics.com.au/u/Core)\ **Post date:** [21 March 2017 00:31 UTC](https://forum.core-electronics.com.au/t/piezo-element-sen-10293/823/1 "2017-03-21T00:31:01Z")
This is a placeholder topic for [**“Piezo Element”**](http://core-electronics.com.au/catalog/product/view/sku/SEN-10293) comments. ![](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/1X/9c5e4f3543e9ac632593c46a07b2f7545a63be2a.jpg) Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pretty easily by reading the voltage on the output. They can also be used for a very small audio transducer such as a buzzer. [**Read more**](http://core-electronics.com.au/catalog/product/view/sku/SEN-10293) ---
**Author:** ![Wai32961](https://avatars.discourse-cdn.com/v4/letter/w/9de053/32.png) [@Wai32961](https://forum.core-electronics.com.au/u/Wai32961)\ **Post date:** [21 March 2017 00:31 UTC](https://forum.core-electronics.com.au/t/piezo-element-sen-10293/823/2 "2017-03-21T00:31:02Z")
HI Sir, is the product able to generate voltage when i press it? Cause I need to connect it to circuit and illuminate the LED lights. ---
**Author:** ![Graham](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/graham/32/54_2.png) [@Graham](https://forum.core-electronics.com.au/u/Graham)\ **Post date:** [21 March 2017 07:33 UTC](https://forum.core-electronics.com.au/t/piezo-element-sen-10293/823/3 "2017-03-21T07:33:50Z")
Hi @Wai32961, A piezo is an electronic device that generates a voltage when it’s physically deformed by a vibration, sound wave, or mechanical strain. Similarly, when you put a voltage across a piezo, it vibrates and creates a tone. Piezos can be used both to play tones and to detect tones. It won’t create enough voltage to illuminate an LED… Although something such as an [Arduino](https://core-electronics.com.au/arduino.html) could be used to sense the output of it. Here is a tutorial: [https://www.arduino.cc/en/Tutorial/Knock](https://www.arduino.cc/en/Tutorial/Knock) ---
**Author:** ![James89545](https://avatars.discourse-cdn.com/v4/letter/j/cdc98d/32.png) [@James89545](https://forum.core-electronics.com.au/u/James89545)\ **Post date:** [3 July 2019 00:04 UTC](https://forum.core-electronics.com.au/t/piezo-element-sen-10293/823/4 "2019-07-03T00:04:06Z")
Hey there, I just bought the Adafruit Audio FX Mini Soundboard ([https://core-electronics.com.au/adafruit-audio-fx-mini-sound-board-wav-ogg-trigger-16mb-flash.html](https://core-electronics.com.au/adafruit-audio-fx-mini-sound-board-wav-ogg-trigger-16mb-flash.html)), and I’m wondering if the Piezo Element could be used as a trigger for this. Cheers ---
**Author:** ![Kevin150738](https://avatars.discourse-cdn.com/v4/letter/k/3be4f8/32.png) [@Kevin150738](https://forum.core-electronics.com.au/u/Kevin150738)\ **Post date:** [15 July 2021 13:09 UTC](https://forum.core-electronics.com.au/t/piezo-element-sen-10293/823/5 "2021-07-15T13:09:30Z")
Hi, would anyone happen to know how to calculate the maximum voltage output of this particular piezo element? ---
**Author:** ![Trent5487676](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/trent5487676/32/4583_2.png) [@Trent5487676](https://forum.core-electronics.com.au/u/Trent5487676)\ **Post date:** [16 July 2021 00:21 UTC](https://forum.core-electronics.com.au/t/piezo-element-sen-10293/823/6 "2021-07-16T00:21:01Z")
Hi Kevin, Welcome to the forum, Understanding the deeper level behaviour of piezo-electric materials gets into some advanced physics quite quickly, I won’t pretend to understand them fully. I would expect this piezo element to typically output on the order of 10s or 100s of millivolts. I’ve found some more information on piezo electrics and FAQs [Piezoelectric Basics - Piezo Support](https://support.piezo.com/article/113-piezoelectric-basics) This piezo element is the 7BB-20-6L0 I’ve highlighted it’s entry in the datasheet below. ![image](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/8/8b0b741e40c8f9c104199dd48ef4fa1c78e5d9be.png)