piezo reacting from splitting power to multiple things

I have two attiny85s that I'm powering with a single 3v battery.  One of these is connected to a piezo (so lights will flash when tapped).  However, the second one keeps affecting the power enough to set off the piezo reaction frequently without tapping.  I don't want to use two separate batteries.  How do I split the power between the two without them affecting each other? Thanks.

Posted by aliasjanedoe 3 years ago

In need of piezo

Anyone knows where I can get piezo? At my local electronics shop the aren't any. I am trying to look for them but won't appear, any guess where?

Posted by TobaTobias 6 years ago

how to make a piezo disk wiggle?

How would you make a piezo disk wiggle so you could see it move. Short story short i ultimately want to make a dual piezo cooling jet that GE had made (www.youtube.com/watch?v=Hm5fXj-hUpk)

Posted by vzfitch 4 years ago

Are there any alternatives to piezo transducers when building an electronic drum?? Answered

I'm trying to build an electronic drum, but piezo transducers seem to be rare in my country !!!! so I'm wondering if there's an alternative to them.

Asked by M.Medhat 8 years ago

I have several piezo-electric ignighters, is there a way to boost them to make a larger spark? Answered

I have a tutorial on how to get one, in case you need an example.

Asked by XOIIO 8 years ago

How do I wire a three-terminal piezo buzzer to make it sound?

I salvaged a piezo sounder from a CO detector.  The sounder (EFM-290ED rated at 9V) has 3 pins rather than the two I am more familiar with.  The pins are labled G, F, and M.  I have tired applying 9V across all combinations of the pins but haven't had any luck maiking it sound.

Asked by jrosserb 5 years ago

how do i wire a piezo element to a output jack, my output jack has 3 or 4 ends to it and i dont no which one to sodder

This is for my cigar box guitar here is the picture of the output jack now which of these should have the wire soddered to it please any help and i dont no scematics or  any of that jazz

Asked by mattthomas992003 8 years ago

Does anyone have a simple circuit for driving a piezoelectric actuator?

I've searched the web and found a bunch of theoretical stuff, but nothing that says here's a schematic and use these parts.

Asked by criswilson10 9 years ago

Piezoelectricity Experiments. Help Needed!

I'm currently experimenting with piezoelectricity.And at the moment my experiment is limited to just a few piezo sparkers extracted from cigarette lighters.The sparker works with observable voltage spike on my multimeter. No voltage spike however when I use the tiny crystal (the size of a zippo flint) taken out from the sparker.I was trying to replicate this experiment (without the oscilloscope):Piezoelectric Rochelle SaltAnother thing, Would continuous vibration produce continuous voltage?It is known that piezo crystals produce high voltage, yet very low current. What are the options to increase the current? Would winding un-insulated copper wire around it (or any kind of contact with conductive metal) increase the current? Apart from lighter, what other surplus sources of piezoelectric crystals (i.e. quartz, PZT, Rochelle)? Can the crystal in RC toys, radios be used to generate electricity? Although there is the option to grow my own Rochelle salt, I'm not looking into it at the moment since it's going to take quite a while to grow.Thanks in advance!

Posted by gyromild 10 years ago

Piezo Disc

Can anyone enlighten me on the uses of the flat bi-metal piezo discs that have two leads (red/black) ? are these only good for more complex circuits or is there a way to make them create noise like a piezo buzzer? Thanks

Posted by chuckers 4 years ago

What is piezo?

I want to build my own drum kit,and I need a piezo.Do someone know what is this?

Asked by cyan_shadow 8 years ago

Would arduino be good for a piezo triggering a servo motor?

I want to create a project that uses Piezo's to trigger the position of a Servo motor, would Arduino be a good controller for this? I have an idea for a musical instrument but i'm a bit of a beginner when it comes to electronics etc. Cheers!

Asked by offtandiscord 5 years ago

Piezo trigger Switch for a Virtual DrumKit

Can anyone help me to make a piezo trigger switch to use with a keybaord to trigger the samples from my pc? I got the idea from here https://www.instructables.com/id/WORLDS-CHEAPEST-VIRTUAL-DRUM-at-10-Rs500-us/ (see step 6) Thanks.

Posted by joeyjerry 3 years ago

How to make a piezo sensor gradually light up an LED strip by tapping on the sensor repeatedly?

Hi there, I want to be able to gradually light up an LED strip by tapping on a piezo sensor trigger drum repeatedly. The aim is to have 2 separate LED strips, and a sensor for each, as it will be a game to see who can light their LED strip the whole way up the first. I have a 1m WS2812B 60 LED RGB LED Strip and a piezo sensor trigger drum. Thank you in advanced.

Asked by ejbarr77 1 year ago

How to make piezo trigger lights?

Hi, I wanted to make a piezo trigger that everytime it hits, it lights up a 2 meters led strip. I found a schematic, but have no idea how to read it. What would I need to get it to light up a 2 meters led strip, running on batteries. I also want it so everytime the piezo is hit, the light flashes a different color. thanks. http://www.discovercircuits.com/PDF-FILES/PIEZOSWITCH2.pdf

Asked by lyoth 6 years ago

Piezo trigger Switch for a Virtual DrumKit

Can anyone help me to make a piezo trigger switch to use with a keybaord to trigger the samples from my pc? I got the idea from here https://www.instructables.com/id/WORLDS-CHEAPEST-VIRTUAL-DRUM-at-10-Rs500-us/ (see step 6) Thanks.

Posted by joeyjerry 3 years ago

Piezo trigger Switch for a Virtual DrumKit

Can anyone help me to make a piezo trigger switch to use with a keybaord to trigger the samples from my pc? I got the idea from here https://www.instructables.com/id/WORLDS-CHEAPEST-VIRTUAL-DRUM-at-10-Rs500-us/ (see step 6) Thanks.

Posted by joeyjerry 3 years ago


HI, Guys .. i have only little question : IS there any way how to made cheep ( or from house-hold items) piezo ultrasonic transducer? thanks for answer :)

Posted by insurgent 3 years ago

How can I make a piezo-kinetic igniter?

I want to build a mini potato cannon and i do not have any pre-made igniters that i can use for it. I wanted to make a piezo-kinetic igniter like the ones used in electric lighters. is there any link (or video preferably) with instructions on how to do this? I also want to know if you have to refill the gas chamber thingy after every shot of the potato cannon.

Asked by Tochi97 6 years ago

Trying to use keypad with arduino mega. please help

I have a 4X4 keypad (the same one they use here: http://www.learningaboutelectronics.com/Articles/Arduino-keypad-circuit.php) wired to my arduino mega on ports 14-21. I have a piezo on pwm8. I need a program that plays a diffrent note when each key is pressed, using keypad library here:http://playground.arduino.cc/Code/Keypad. The code on the first link is my base, I just cant get the if statments to work. please help.

Asked by TheRealRocketBurns 3 years ago

How would I make a cheap displacement sensor? Answered

I was thinking about putting a plunger against a slide pot with a spring to reset the pot, or making a plunger that rolls a rotary pot with a spring, but I was wondering if there was a way that I could use a piezo like this http://www.ebay.com/itm/10-24mm-Cased-Piezo-Disc-Projects-Unltd-Audio-Transducer-3-Lead-Buzzer-Alarm-/120900133885?_trksid=p3284.m263&_trkparms=algo%3DSIC%26its%3DI%26itu%3DUCI%252BIA%252BUA%252BFICS%252BUFI%26otn%3D21%26pmod%3D120961575052%26ps%3D54 I think I could have a plunger push down on a spring that touches the exposed part. I don't need to do anything with the signal other than read the voltage and even then I just need to know what it's at compared to the range of values from pressed down to not.

Asked by tjmburns 4 years ago


What is a good place to find piezos? I know I can find them in some old computers and cheap toys with "sirens" in them. What other devices readily have piezos installed? (....and please spare me the sarcastic answers about finding them at Radioshack)

Posted by randofo 9 years ago

Turntable speaker with piezo speaker glued to make-shift horn? Answered

I'm wondering if I could take a piezo speaker, glue it to the bottom of a make-shift gramophone horn, and wire it directly to the RCA output cable of a turntable. Would this blow the piezo speaker? And I'm not sure if it's called a piezo speaker or not, but it's the small, flat circle, I think it may be called a piezo element.

Asked by josh1324 6 years ago

add piezo to motion detector light?

How do I add a piezo buzzer to my motion detector light?

Asked by bennyb1 8 years ago

LED with piezo element window burglar alarm? Answered

I would like to make an automatic lighting system for when i open my cupboard. I was wondering if its possible to hook up an LED to a window protecting (piezo element) burglar alarm? I have already removed the piezo element, and i'd extend the length of the LEDs placement across the cupboard, of course, with wires.  My question is, If this works, how many LED's can i solder to one of these units without burning it out? Thanks for any help.

Asked by whisp3r3r 5 years ago

Using a Piezo to trigger lights?

Hey all. What I am trying to construct is some kind of circuit that will trigger an LED when a piezo is tapped. The reason I would like to create this apparatus is to trigger lights using acoustic drums for my band's live show. I would like a light to go off every time a drum is hit and I figured that using a piezo would be the best way to do this. Any help that anyone could offer in this would be greatly appreciated. Thanks again. P.S. I found this diagram for a piezo switch but I am unsure as how i could use this or even how to make it in the first place. I am very new to electronics.

Posted by cimz 6 years ago

What would be the best way to attach a Piezo Tranducer to a basic Maplin Preamp for vibrational Pick-up?

Basically I want to fit a piezo disk into (inside) one of my turntable so I can pick-up the vibrations made by its movement for a kinetic-sculpture I am currently working on for Uni. I just curious as the best method for amplifying this sound and was hinted to run the disk through a preamp for the best effect.

Asked by Cellphrm 7 years ago

can i plug drum trigger pads directly into an audio interface and translate those signal to midi internally? Answered

Instead of buying a trigger to midi converter?   i can translate most signals (like that of a piezo mic) into a midi signal within ableton live, but im just not sure itll work with drum pads.

Asked by flosin 8 years ago

Connecting a piezo lighter...?

I should solder 2 wires... one contact can be easily seen, but the other one seems to be... the black plastic???

Asked by lllalllo 9 years ago

Tutorial: LCD Thermometer with optional Alarm

I created this Arduino tutorial. I hope somebody finds it helpful! Feel free to post any comments or suggestions. http://wellsb.com/post/1328196426/arduino-lcd-thermometer-with-optional-alarm

Posted by 5m0k3 7 years ago

How to properly setup an undefined numbers of piezos for drumming ?

Hello everybody ! I'm currently into a really cool project which gives me quite hard times. To begin, I'm a big noob in electronics, but I'm decent in programming. So i'm able to understand, learn or correct myself easily when it's about code, but I'm really in the dark for everything concerning electronics despite the fact that I read so much about it recently... My projet ------------ My goal is to make my own MIDI drum kit. Not a new idea, but the difference is that I want to use lot of pads. I bought some WII, XBOX and PS drum kits that I disassembled to get just de pads. Then I bought an Arduino Uno, not a mega because I'm a beginner and I can totally start with a small amount of pads, also I wanted the perfect solution in terms of compatibility etc. STEP ONE : 1 pad -------------------- So, I first made a prototype with 1 pad, which was very easy to do, since there is billion of officials and unofficials tutorials about how to connect a piezo to the Arduino. So basically, on my breadboard its like that (except im on A0 not A2) : http://learning.codasign.com/images/1/1e/Piezo_arduino.png So I connected my pad to the Arduino with a 1 Mohm resistor in parallel and I made a program which function very very well. You can read it the : http://codeshare.io/VzUGn The only challenge here was to set proper threshold and delay so the signal is clean when I hit the pad with a drumstick, to integrate the MIDI library and finally to find a software that makes the informations i send available in any of my favourites music softwares (Ableton Live, Maschine, ...), this software is Hairless Serial to MIDI, btw. STEP TWO : X pads --------------------------- It's when I'm getting troubles. At first I believed that all I needed to do was to reproduce the same schematic but "duplicate it" x times. So I tried with 4 pads. I used the same strategy on my breadboard : each pad is connected in parallel with a 1 M ohm resistor, but all are connected to ground. You can see it there : http://oi57.tinypic.com/aymsli.jpg The code, take the old one, but just loop on the 4 pins : http://codeshare.io/8Tb6z So here are the 2 issues : - The pad on the left is OK, like with my 1st program, the second one is still ok, the third one I have to hit a bit hard, the fourth one I have to hit VERY hard. - When I hit a pad, it seems it send electricity in others pins, I say that because when i connect the Arduino to a music software, hiting a pad = having multiples notes at the same time. For the hitting force issue, I'vre tried to play with resistances, puting higher or lower values and I got totally lost with that : nothing seemed to be better. About that "leaking" issue, I thought it could be useful to put some diodes, as i heard diodes are usefull when you want to make the current going in one way only, but when i watch some others schematics, i see no diodes and only 1 Mohms resistors everywhere, so I really don't know what is wrong and what to do. Here is the MIDI xylophone someone made and posted on instructables : https://cdn.instructables.com/FB6/VMRG/H4AGICO1/FB6VMRGH4AGICO1.LARGE.jpg I have no idea why this is working and why there is ground directly linked to these analog pins, and many other things i cannot understand. Any help would be really appreciated ! :)

Asked by AnthonyJ7 2 years ago

Piezo Freebies?

I know there are lots of websites were you can get free electronic parts and sample. I am looking for some piezos and I was hoping I could find them on these sites, but I'm having trouble. Any suggestions? Any sites that have them?Any help appreciated.?

Asked by mkupps 9 years ago

Where can i get piezo transducer? Answered

I am doing a project. i need this for my project. i would be very thankful to the person who hep me.

Asked by rajarshi misra 3 years ago

How can I produce infrasound using a bunch of piezo's?

The industrial music pioneers Throbbing Gristle reportedly created something that was capable of producing sound at frequencies below the threshold of human hearing (infrasound) by wiring together a bunch of piezo's. I'd love to do this myself, but don't currently have the time and resources to experiment myself. Any chance that there's someone out there that has replicated this? Preferably someone willing to write up an instructable?

Asked by Subvert 8 years ago

I would like to know how much force should be applied to get and output of 8v on a piezo electric ring.

I would like to make a mobile phone charger using a piezo electric crystal which can be placed inside our shoe, so that when we walk, we step on the piezo electric crystal and thus we can charge our mobile. for that i would like to kno more about piezo electric crystals, and how much force is to applied for getting an output of around 8 v and type of crystal to be used for this purpose. Thanks in advance.

Asked by allsparkunleashed 5 years ago

Light Up Snare

Would it be possible to assemble a circuit using a piezo sensor and a string of LEDs so that a snare lights up when hit? My knowledge of stuff like this is extremely limited (read: non-existent) so any help would be appreciated! Also, if my idea is useless, it'd be great if other ways of doing this were discussed. Thanks!

Posted by clairey 9 years ago

Arduino knock sensor with a twist

Hey there! I live in a dorm and there's no preinstalled doorbell so i thought i'd do something funkier. I've used the stock Arduino Knock code and modified it a bit so agitating the piezo will make a connected buzzer beep. The problem is that while the entire setup is working, the buzzer itself is very very quiet. With a pure tone making script the buzzer will make a loud BEEEP, but combined with the knock code it's extremely quiet. I'm new to Arduino's so please bear with me when i show my code (most is copy/paste to fit): /* Knock Sensor      This sketch reads a piezo element to detect a knocking sound.    It reads an analog pin and compares the result to a set threshold.    If the result is greater than the threshold, it writes    "knock" to the serial port, and toggles the LED on pin 13.      The circuit:     * + connection of the piezo attached to analog in 0     * - connection of the piezo attached to ground     * 1-megohm resistor attached from analog in 0 to ground    http://www.arduino.cc/en/Tutorial/Knock       created 25 Mar 2007    by David Cuartielles    modified 30 Jun 2009    by Tom Igoe  */   // these constants won't change: int speakerPin = 9; int ledpin = 13; const int ledPin = 12;      // led connected to digital pin 13 const int knockSensor = 1;  // the piezo is connected to analog pin 0 const int threshold = 10;  // threshold value to decide when the detected sound is a knock or not // these variables will change: int sensorReading = 0;      // variable to store the value read from the sensor pin int ledState = LOW;         // variable used to store the last LED status, to toggle the light void setup() {  pinMode(ledPin, OUTPUT); // declare the ledPin as as OUTPUT } void loop() {   // read the sensor and store it in the variable sensorReading:   sensorReading = analogRead(knockSensor);        // if the sensor reading is greater than the threshold:   if (sensorReading >= threshold) {     // toggle the status of the ledPin:     ledState = !ledState;       // update the LED pin itself:            digitalWrite(ledPin, ledState);     buzz(9, 2500, 500); // buzz the buzzer on pin 4 at 2500Hz for 1000 milliseconds   delay(100);    }     // delay to avoid overloading the serial port buffer } void buzz(int targetPin, long frequency, long length) {   long delayValue = 1000000/frequency/2; // calculate the delay value between transitions   //// 1 second's worth of microseconds, divided by the frequency, then split in half since   //// there are two phases to each cycle   long numCycles = frequency * length/ 1000; // calculate the number of cycles for proper timing   //// multiply frequency, which is really cycles per second, by the number of seconds to   //// get the total number of cycles to produce  for (long i=0; i     digitalWrite(targetPin,HIGH); // write the buzzer pin high to push out the diaphram     delayMicroseconds(delayValue); // wait for the calculated delay value     digitalWrite(targetPin,LOW); // write the buzzer pin low to pull back the diaphram     delayMicroseconds(delayValue); // wait againf or the calculated delay value   } } If i get this working i'll see if i can make an instructable out of it (and make a "secret knock identifier"). I ended up using this code: [url]http://vimeo.com/groups/arduinoprojects/videos/1940394[/url] which works (code can be found by following the links) And it works! I'm still wondering what was wrong with my (pasted) code though.

Posted by Eirinn 8 years ago

Detecting Very Slight Tendon Movements In Wrist

I've always had an intense fascination for lucid dreaming. Finding ways to communicate or control outside devices based off the slight body movements that are possible despite the natural paralysis during sleep is a topic of great interest to me. I have several LDs (lucid dreams) each night and through much experimentation have found that with a bit of concentration, I could move my fingers enough to trigger very sensitive buttons (if placed perfectly before falling asleep) or to grip myself (if my hand is placed say, near my neck before intentionally entering a dream from waking) such that the sensation of my fingers reaching my neck would wake me. These experiments were proof enough that if I perhaps had some sort of glove or wrist mounted piezo sensors that are able to detect the individual tendon/finger movements with high enough sensitivity, combined with software that can parse patterns and reliably filter out minor unintentional simultaneous movements for the fingers that are prone to movement when others nearby are moved, it would be possible to establish one way communication with outside devices, the Internet, etc. Input could be in the form of different patterns or even text (tap code, morse code, or through a hybrid allowing use of each digit of the hands) or musical notes (each finger representing a note of a scale with a finger or two used to change octave or to toggle sustain.) As a musician who "writes" his best music within his dreams, this could be quite handy for getting melodies down before they vanish from memory on waking. For example, to activate input, you could perform a simple pattern that is unlikely to be triggered unintentionally. It could be as easy as left thumb flex, right thumb flex repeated in that order several times. From this point, you could use another pattern to choose to trigger an alarm (sound, vibration or electrical shock), or to initiate musical or text recording. There are many different uses that could be explored, and it might even be possible that 2 way communication could be established if a reliable method of transmitting to the dreamer without waking them could be created. This is however beyond the scope of my intentions. I have suffered from sleep paralysis on a nightly basis for over a decade now which can be extremely frightening and last up to several minutes, and during this time I am able to move my fingers as well as shake my head back and forth (which I need to do to break out otherwise the paralysis will persist until I'm pulled into a nightmare.) My solution to these terrifying experiences was wearing a heart rate monitor with an alarm that goes off past a certain BPM, which only happens when I am frightened. Now that I am so used to these experiences, my heart rate does not increase enough that I can reliably use it as a trigger without also waking myself out of exciting dreams that I'd rather not have prematurely terminated. I am fairly confident that a device such as this could help with breaking out of my paralysis at will and PERHAPS even be sold commercially to other sufferers of this condition, however niche the market. Giving me control over my sleep paralysis alone would be a highly satisfactory result with significant quality of life improvements and be worth the effort of building this. Waking up partners in bed with my head thrashing is less than ideal! As an avid software programmer, I do not think that the code involved would be terribly difficult. However, I have very little electrical knowledge and building this without existing plans would be tough and time consuming. It would be enough to have a pressure/flex voltage for each digit transmitted to a Raspberry Pi or via Bluetooth to a computer and the rest could be done through software. My questions are.. Does a commercial device exist that would be suitable for my purposes and not be terribly expensive? Perhaps a glove? Is a wrist strap with piezo sensors over each tendon that control the fingers a realistic possibility to achieve my goals? I do not need to know the position of the fingers or whether it is pushing against something. Just that movement is being attempted. Do existing plans exist to create a similar device? Thank you!

Asked by Ril900 5 months ago

Using a piezo as a vibration sensor

Hi, I'm thinking of getting a piezo sensor like this one http://www.meas-spec.com/product/t_product.aspx?id=2474 to measure the frequency of the vibrations of any surface I attach it to, using a micro like an arduino or pic. However I haven't come up the circuitry to make this happen, any ideas? Thanks

Posted by Arellano 5 years ago

where could i get a piezo buzzer for free. (for a guitar pickup...)? Answered

I want to know where could i get a piezo buzzer (such as in an old radio alarm, where i could recuperate or does any company give free samples?) it is to make a pickup for an acoustic guitar! Thanks!

Asked by draksul 8 years ago

how to use piezo electric transducer for power generation ?

We plan to do a project using a piezo electric transducer to generate a power to charge  a cell phone while walking so need a idea . 

Asked by sathishkumard 5 years ago

Piezo buzzer won't work? Answered

I have a couple of Piezo buzzers that I bought from the Adafruit shop, but when I connect them to a power source, they don't buzz or make any noise... Am I doing something wrong? Or am I not doing something?  Heres the link to the buzzers I have: www.adafruit.com/index.php

Asked by Zem 8 years ago

Would a piezo ignitor Ignite blackpowder?

I am planning a hand cannon en.wikipedia.org/wiki/Hand_cannon But instead of a fuse i want to use a piezo ignitor and copper pipe ! Will it ignite the blackpowder Sucessfully

Asked by stephenniall 8 years ago

Can I cut a piezo electric transducer in half and it still work?

Question sums it up for the most part.

Asked by Nicknin10do 9 years ago

Where to get piezo igniters?

I have several lighters that I still like, either for their design or intended purpose. But over the years some failed to produce proper sparks with the piezo. For some I could salvage replacements from cheap lighters but not so much for the longer ones - the type to get your bbq or oven going. Here the wire from the igniter is in ne long piece going all the way from the piezo, through the long neck to the flame outlet. As the wires in those piezo igniters are aluminium it is next to impossible to attach a longer wire as usually there is no room for crimped connections and the isolation is a problem too. I also have one particular lighter that uses a slightly longer and thicker piezo igniter, the common ones don't work here as they are too short. Adding more support underneath is a no go as the shorter ones have less travel when activated. Last but not least is one lighter that requires a piezo with not just the little metal cap at the end but with a full metal body for the stationary part. The lighter in question does not work with standard types even if I add a little metal strip to make proper contact. Problem is simply put that like this the standard ones arch over and no spark comes out of the wire. So big question: Is there any supplier or Ebay shop where one could actuall see the various types of piezo igniters and order them in small or single quantities? So far I already struggled to find a source for the crappy standard ones and the only one I found wanted to charge $ 2.95 US per igniter plus postage. Sounded a bit greedy to me considering I can buy a complete lighter with it for around one single buck...

Asked by Downunder35m 7 months ago