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Questions tagged [piezo]

refers to the prefix of Piezoelectricity.

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1.7 MHz generator for a water atomizer

I'm creating a controller for a small greenhouse, I have a DHT22 for measuring and two relay module that controls heating and cooling systems, and I will use a piezo to produce humidity when it goes ...
Edgard's user avatar
  • 21
1 vote
0 answers
217 views

Piezo sensor requires parallel or pull-down resistor?

Apologies but I didn't happen to find ultimate answer to this. I'm trying to make a simple piezo sensor (https://www.sparkfun.com/products/10293) which triggers something (e.g. a sound or lights up a ...
kuma's user avatar
  • 111
1 vote
0 answers
58 views

Arduino IDE on Attiny45: What kind of power does a chip need?

I have this little AtTiny45 which I'm loading a program with Arduino as ISP. My goal to use this chip along with a op amp, a piezo buzzer and a press button, and have it automatically sleep between ...
B7th's user avatar
  • 167
1 vote
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110 views

Shall an active piezo buzzer module draw as much as 10mA on its signal pin?

I have connected an active piezo buzzer to my arduino: KY-012 Active buzzer module. I was a bit surprised that it drew like ~10mA on the signal pin from my nodemcu, which I find a bit weird, since ...
darkmattercoder's user avatar
1 vote
0 answers
112 views

my button won't work, why?

I have been trying to get the button to work properly for over a day, but it just won't, can you help me. The lcd display is for another part of this project, not important at the moment, but I can't ...
Termatinator's user avatar
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76 views

Speaker & Piezo when beeping both cause CapacitiveSense to sense

I am using this speaker: CUI part number CSS-I4B20-SMT-TR as an alarm on a clock using atmega328 chip and Arduino IDE with the tone function. Works great. I am also using Arduino CapacitiveSensor.h ...
RickH's user avatar
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510 views

How to stop the screeching noise that comes from buzzer?

I use sfm-27 dc 3-24v Buzzer. It sounds fine if i close the buzzer using my palm but if i doesn't close it, it will make a screeching noise. I play melody using the buzzer so the sound is important. ...
Hanim's user avatar
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