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1
Misc / Re: Piezo Transducer samples
« by cooldog on June 03, 2008, 08:36:42 PM »

...... : Admin on May 30, 2008, 08:42:23 PM  What kind of piezo?    i'm looking for a  ......
2
Electronics / Re: activating a piezo speaker from a battery???
« by airman00 on December 06, 2007, 09:45:59 PM »

......   Piezo speakers (also known as piezo buzzers or piezo  ............  of only needing a single output port pin. The piezo can be connected directly between the port pin  ............  be driven to the appropriate level when the piezo is idle in order to avoid applying a DC bias.   ............ . This creates twice the voltage swing across the piezo, which results in higher volume. When the piezo  ............  same output level in order to avoid a DC bias.  Piezo speakers have strong peaks in their frequency  ............ . If you are just using a piezo as a simple audible indicator, you may want to  ............  and I have found that it is useful to include a piezo in almost any microcontroller based project  ......
3
Electronics / Behaviour of a Piezo Element
« by MeckelBot on May 07, 2011, 05:21:47 AM »

...... .   I´m trying to use a Piezo Element as a pressure sensor, but whan observing  ......
4
Robot Videos / Piezo micro motors
« by BANE on June 07, 2011, 08:44:07 AM »

......  know if these are for sale or how much they cost? Piezo micro motors create a tiny optical zoom module   ......
5
Software / Re: Piezo Buzzers
« by chelmi on June 27, 2009, 08:55:36 AM »

...... :09 AM  The sound of static implies that this is a piezo transducer and not a piezo buzzer. Read a bit  ............  http://www.kpsec.freeuk.com/components/other.htm#piezo. So it looks like you need a square wave with a  ............  lol....     You are right, it's listed as a piezo transducer on mouser: http://ca.mouser.com/Search/ ......
6
Software / Programming simple music tones with a piezospeaker?
« by jbean on February 08, 2008, 03:51:30 PM »

......  from parallax and i just got to the part with the piezospeaker. I was thinking that if you had a certain  ......
7
Electronics / large piezo speaker with Axon II
« by BANE on March 16, 2011, 04:33:59 PM »

......  all, I have this piezo speaker from radio shack http://www.radioshack. ............  it with the axon II. I know how to make smaller piezo speakers around 5v work but this thing is rated  ......
8
Electronics / piezo ignition voltage?
« by BANE on June 26, 2010, 08:01:35 AM »

......  I'm trying to simulate the piezo electric ignition in a standard cheapo bar-b-que  ............  ideas?  thnx  update http://rimstar.org/materials/piezo/ignitor1.htm   ......
9
Misc / Re: Fun little program I wrote for the ATMega - had to share
« by Admin on March 21, 2008, 05:32:01 PM »

......  easier and more efficient to write songs using a piezo   I've heard of people writing programs that  ............  MIDI files and output piezo files for PICs. Im sure you can find one if you  ......
10
Electronics / Re: Pocket ultrasound dog repeller
« by Admin on June 23, 2007, 04:44:39 PM »

......  a MOSFET gate to a servo port, and attach the piezo buzzer to the mosfet source and ground lines.  to  ......
11
Mechanics and Construction / Off-road mobile robot
« by nuclid on February 01, 2007, 06:51:49 AM »

......  buttons, potentiometer with 0-255 range and a piezo buzzer.  * 7 analog and 9 digital inputs. All  ......
12
Electronics / Re: Basic IR alarm system
« by bukowski on November 29, 2007, 02:15:40 PM »

......  cone speaker. I have no experience working with piezo speakers, but from what I just read, they have a  ......
13
Electronics / Re: Sensitive Button
« by jwatte on April 21, 2014, 07:47:49 PM »

......  piezo-electric unit could easily detect the force of a  ............  will be how to clamp the output voltage of the piezo element (which can be more than the AVR likes)  ......
14
Software / need to learn PIcaxe 28x1
« by MaltiK on September 05, 2008, 06:38:22 PM »

......  tutorials for the picaxe 28x1 board... like using piezo buzzer or something for it? ......
15
Electronics / Boe-bot version of CMUcam?
« by Fredrik Andersson on August 29, 2007, 09:17:11 AM »

......  with the so called AppMod, a chip with 8 leds, a piezo speaker, two switches a chip and lots of pins  ......
16
Robot Videos / Re: My first robot
« by meanpc on January 27, 2012, 03:15:43 AM »

......  added Ultrasonic sensor functionality. I threw a piezo speaker and an LED on him to make him a little  ............  object, he rotates left, the LED flashes, and the piezo speaker chirps in time with the LED.    HC-SR04  ......
17
Electronics / Re: pezio electric speaker and the 50$ robot
« by Admin on January 31, 2008, 09:50:40 PM »

......  piezo buzzer, right? I am guessing one of those round  ......
18
Electronics / Re: Small Vibration Sensor? Help :)
« by Gertlex on January 09, 2009, 11:18:04 AM »

...... . Never quite got a working circuit using the piezo switch to trigger the SR FF.... And I kinda lack  ......
19
Robot Videos / Re: My little LED Light Chaser
« by HDL_CinC_Dragon on January 09, 2009, 05:33:22 PM »

......  crap buckets. The actual design has the Piezo in parallel with the LED not in series >_< damn  ......
20
Electronics / Re: VIBRATION SENSOR?
« by strat321 on May 22, 2013, 03:52:42 AM »

......  bot, in place of a microphone perhaps. Would a piezo element sensor with analog stereo leads fit this  ......
21
Electronics / Re: sale: servo controllers, gyros, GPS video overlay
« by Militoy on December 20, 2006, 09:26:41 AM »

......  opportunity to test out one of the Tokin ceramic piezo units yet. ......
22
Electronics / Pushbuttons and other inputs?
« by GalacticNerd on April 07, 2009, 02:54:57 PM »

......  ps: if some could show me the shematic for a piezo speaker and how to control it, that would be  ......
23
Misc / My MiniEric robot
« by Ro-Bot-X on February 22, 2009, 10:25:37 PM »

......   - uses a battery monitor sensor  - uses a piezo speaker to play melodies  - uses a software  ......
24
Electronics / Re: drum sensors?
« by Soeren on March 08, 2009, 11:51:23 AM »

......  a bit more work.  Sensors for the impact can be; Piezo disks, ferrite core coils, several types of  ............  prone to picking up magnetically induced noise, piezo might sense other sound, depending on how it's  ......
25
Electronics / Re: accuracy
« by waltr on December 09, 2013, 08:06:41 AM »

......  piezo actuators work within the nanometer range: http:// ............ .piezo-usa.com/piezo_actuators_nanopositioning/ ......
26
Electronics / Re: Pressure sensor ?
« by hudbrog on November 10, 2008, 01:40:22 AM »

......  video it's a piezoelectric pressure sensor. You can buy something  ............ =8712 Or there are companies, which sell "piezo plastic" or something like that... ......
27
Electronics / Re: Non-ultrasonic Sonar
« by Admin on June 02, 2007, 09:41:44 AM »

......  you can hack a piezo buzzer? http://images.google.com/images?um=1&tab= ............ &hl=en&rls=DGUS%2CDGUS%3A2006-11%2CDGUS%3Aen&q=piezo......
28
Electronics / Re: I want to make a robot beep in certain situations
« by Soeren on September 27, 2009, 02:19:48 PM »

......   Several options for beeping really; loudspeaker, piezo buzzer, piezo disc etc. Some just needs a supply  ......
29
Electronics / Re: elm-chan's wav player
« by redloff on March 02, 2013, 02:39:38 PM »

......  speaker from an old cell phone. I also tried piezo speaker (4.8 Ohm, 0.1 W) before, but with no luck  ......
30
Electronics / Re: Vibration sensor
« by Soeren on September 06, 2009, 06:17:56 PM »

......  the vibration of a machine.    The LDTx is a piezo-sensor and could be likened with eg. a crystal  ............  was designed for). It was designed for a regular piezo disk glued to a steel plate, to detect GOLF ball  ............  beforehand.  For a vibration sensor, a cheap piezo disc could be used as a Guinea Pig to save the  ......
31
Misc / Re: Annoying sound maker
« by izua on July 27, 2008, 05:26:08 PM »

...... . Also, remember to drive the buzzer (if it's of a piezo type) in a bipolar fashion: don't tie it to  ......
32
Software / Re: Send out specific frequency from AT Mega 8
« by HDL_CinC_Dragon on July 31, 2007, 07:41:29 PM »

......  want to be able to hook up a piezo disc to the pin and have it play at what ever  ......
33
Electronics / Re: Buzzer
« by billhowl on July 27, 2009, 04:26:55 AM »

......  the spec it said:  Quote  Type Piezo Transducer, External Drive Frequency 3.8kHz  ......
34
Mechanics and Construction / Re: Starting Out
« by annoyin_kid on January 25, 2007, 04:23:43 PM »

......  by someone stepping on a floor mat with a piezo underneath it. then leds and a sound is given off  ......
35
Electronics / Re: Sensors and Snow
« by Soeren on June 02, 2009, 08:27:32 AM »

...... ,  As you assume, a piezo only gives a signal when hit (actually, when  ......
36
Electronics / Re: simple buzzer
« by SmAsH on July 31, 2009, 09:16:05 PM »

...... , if its just a small piezo... it will work fine. have you got the datasheet  ......
37
Misc / Re: Check my thoughts/math here - MCU frequency cycle times
« by superchiku on March 17, 2008, 01:25:16 PM »

......  that kinda code will work on a servo but not on a piezo crystal which i guess u must be using for  ......
38
Electronics / Re: Interesting Uses for Old Mother-Boards
« by TrickyNekro on January 06, 2008, 11:32:44 AM »

......  and many smd components... you 'll also get a piezo if it has any... some fans and some coolers that  ......
39
Misc / Re: Tutorials that you want
« by airman00 on January 27, 2008, 06:54:15 PM »

......  have any experience with it?   MIDI sound with a piezo disc? Is that it?  ......
40
Electronics / Re: RF Interference?
« by Soeren on July 20, 2012, 07:07:55 PM »

......  earpieces are cheaper to manufacture, but a piezo disc and a series cap of around 47..470nF can be  ......
41
Electronics / Re: make a long range remote radio transimtter and receivers
« by dsesmg on October 20, 2009, 06:52:25 AM »

......  doesn't necessary for me. Only the LED flash and piezo sound is enough. The distance is 500m range and  ......
42
Electronics / Re: Automatic Fish Feeder - need timer
« by Soeren on May 21, 2009, 01:09:45 PM »

......  simple) external circuitry. The signal to the piezo alarm used in most small alarm clocks needs to be  ......
43
Electronics / Re: sound activated switch
« by Soeren on June 17, 2009, 07:00:29 PM »

......  microphone capsule and a transistor, or with a piezo disc if you only want it to trigger by loud  ......
44
Software / Re: SQUARE WAVE QUESTUON.
« by paulstreats on January 25, 2009, 06:06:18 PM »

......  using it through a fast transistor and then to a piezo speaker. color changes should register as  ............  sounds out of the piezo..... could be a fun side project) ......
45
Electronics / Re: Sound playback
« by Admin on September 27, 2008, 10:31:13 PM »

...... ? A simple midi? or wav file?  A speaker? Or piezo buzzer? ......
46
Electronics / Re: Cheap underwater sonar
« by Cognaut on December 08, 2006, 08:33:23 AM »

......  a documentary on submarine sonar. They use a piezo transducers - I think mainly because they work as  ............  up their attributes.  I just received the little piezoelectric transducers that I ordered from Edmund  ......
47
Misc / Re: My Balancing Robot
« by onesandzeros on November 27, 2006, 05:15:48 PM »

......  ir range sensor (4 to 3o cm) 1 x gws PG_03 Piezo Gyro 2 x Solarbotics GM8 - Gear Motor. ---- i  ......
48
Misc / Re: Too many choices, what to use.
« by stlcards08 on April 05, 2007, 06:22:30 PM »

......  so i never really got much further than LEDs and Piezo speakers. This summer I'm gonna spend alot of  ......
49
Software / Re: $50 robot using PING))) Ultrasonic Sensor
« by pomprocker on July 09, 2008, 10:27:53 AM »

...... -----------------------------------------------    Piezo PIN 4 ' Piezo Speaker  ............ ---------------------------------------    FREQOUT Piezo, 2000, 3000 ' Signal Program Start/ ......