Questions tagged [buzzer]
An electrical device, similar to a bell, that makes a buzzing noise and is used for signaling.
40
questions
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1answer
43 views
Is there a way for keypad to stop the buzzer while it is running?
I am new to arduino, currently I am looking for a way to make the keypad able to stop the buzzer making a siren alarm when password are keyed in wrong and able to move into password screen by pressing ...
0
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0answers
65 views
is there any archives of melody tones for buzzer used in arduino?
I am using buzzer in my arduino and I read some articles about using array of tones(notes in music) with different frequencies to play play pleasant melodies.however, I do not find any site and ...
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2answers
53 views
Buzzer interfere with thermistor reading
This is how i wired the thermistor and buzzer:
simulate this circuit – Schematic created using CircuitLab
And the code:
#define RT0 10000
#define B 3977
#define R 10000
float RT, VR, ln, TX, ...
0
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0answers
35 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. ...
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1answer
68 views
Why Buzzer interfere with PWM?
This is the code:
#define TMST A2 // Thermistor
#define BZR 10 // Buzzer
#define FanP 11 // Fan
void setup() {
DDRD = B11000000;
DDRB = B00001111;
DDRC = B00000000;
TCCR2B = TCCR2B & ...
-2
votes
1answer
152 views
how to set buzzer on and off
I have a project that require me to use magnetic contact sensor. I will put the sensor at the door. So the idea is i want every time someone open the door, the buzzer will make a sound, but it will ...
4
votes
1answer
319 views
Tone() conflicts with IRremote library (multiple definition of `__vector_7')
I have just started with Arduino and C++ so I apologise if my question is very basic.
I am trying to use tone() with a passive buzzer to create a sound while also using the IRremote library for a ...
1
vote
2answers
187 views
Current consumption of a buzzer
I want to use the buzzer KPEG2000 in my Arduino application. I would like to know if a GPIO can directly drive this buzzer, without destroy the uC (a GPIO can deliver 40 mA max). In the datasheet, we ...
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1answer
45 views
Can a Arduino Uno handle all these components?
Its my first project with an Arduino, so please bear with the dumb questions.
For this project of mine, I need an Ultrasonic Sensor, a Gyroscope, a Buzzer, three push buttons and an 16x2 LCD.
Can ...
0
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0answers
26 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 ...
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0answers
24 views
How to stop and repeat a melody using a button?
How can we make our melody stop when we press the button the first time and repeat the melody when we press the button the second time?
// Noterna defineras
#define NOTE_B0 31
#define NOTE_C1 33
#...
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0answers
226 views
Multiple Servo motors with an ultrasonic sensor
I am building a robot arm with 6 servo motors that works with an ultrasonic sensor. The purpose of the program is when an object is detected at 20 cm (fixed position) from the sensor, the buzzer and ...
0
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3answers
2k views
Passive buzzer works with analogWrite(), but not with digitalWrite(). It also has constant static noise
I have a YL-44/MH-FMD passive piezo buzzer hooked up to an ESP8266/NodeMCU.
It's connected like this: Buzzer ---> NodeMCU
- GND ---> G
- VCC ---> 3V
- I/O ---> D2
This code makes a clear beep.
...
0
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2answers
125 views
Won't break out of for loop
I'm new to Arduino and I'm trying to use PWM to generate a tone through a buzzer. I've created a for loop, however, the for loop doesn't seem to break when the variable ms is < 1000000.
int ...
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4answers
79 views
help with a loop
I recently got into programing and I'm making an alarm. I cant figure out how to make a buzzer loop. I have two blinking LED's and two fading ones. Now I plan to have sound and it won't work. It only ...
0
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1answer
1k views
Arduino - Playing WAV files with a buzzer
I have developed an Arduino program that plays a WAV file from the SD card using a speaker.
This is the circuit schematic
The sketch I'm using is based on TMRpcm library and PWM output
#include <...
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2answers
268 views
How can you have two blinking leds and a fading one
I am trying to make a alarm and I have two blinking leds (red and blue). They work fine but I want two more that fade in and out.
I have a buzzer on it too.
I am very new to programming. By the way, ...
1
vote
1answer
125 views
How to detect when intercom is ringing?
For my apartment, I need to check when intercom is ringing and call an API in that case. I was thinking about using an AC input / DC output relay, since the buzzer signal is an AC signal. Is there an ...
0
votes
1answer
55 views
everything works independitly but not together. Piezo not generating a tone
My goal with the code is simple. Let the Piezo buzz when temperature reaches 25 degrees. My piezo is hooked up correctly, because It makes a buzz when the arduino boots or when I put this line of code ...
0
votes
1answer
107 views
Arduino - Push Button State Problem
My problem is I want the buzzer to stop after a certain amount of time, regardless if it is still pressed or not.
I have tried to implement a boolean statement to the code but to no avail(I'm not ...
1
vote
2answers
719 views
Stop Arduino Timer after some seconds
I'm building a basic program that when a button is pressed, a buzzer comes on.
I would like however to make it so that the buzzer stops after a short period of time (e.g. 5-7 seconds).
Here is the ...
0
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3answers
3k views
Is there a way to play .mp3 files from an SD card on Arduino?
Is there a way to have mp3 files on an SD card in the SD card shield for the Arduino and play an mp3 file on that SD card with a buzzer?
If possible also with something like:
playmp3(thismp3.mp3);
...
0
votes
1answer
101 views
Joysitck with servo, LED array and buzzer [closed]
Does anybody know of a sketch that can turn a single servo 180 degrees clockwise/counterclockwise with the x axis of a joystick, light a bar graph LED with the Y axis, and sound a buzzer when the ...
2
votes
5answers
758 views
Emergency Vehicle - Make two LEDs flash with buttons and a passive buzzer change sound
My Dad and I are just learning how to use my new UNO.
We have learned how to make leds flash at the touch of a button. We have also learned how to make a passive buzzer sound at the touch of a ...
1
vote
2answers
45 views
How do I create a constant loop with an event that only occurs once?
I am currently working in void loop() and have setup a distance meter that constantly checks the distance.
Once the distance threshold is met, a function is called. Now I only need this function to ...
0
votes
3answers
2k views
How can I loop for a set amount of time when a condition is met?
I'm trying to create an Arduino project with a light sensor and a buzzer. The idea is that when the sensor detects that the lights have gone off, the buzzer will sound for 5 seconds. At some point, ...
0
votes
1answer
236 views
What is wrong with my state machines?
My goal is to make an automatic gate and garage door, and it has a servo as the lock mechanism on the gate, and alarm systems that notify when the gate or garage door is open too long, more than the ...
0
votes
1answer
259 views
Execute function until called again?
I am building a simple security system with my Arduino Uno. I have an alarm() function:
void alarm() {
tone(8, 3300, 200);
delay(200);
tone(8, 3000, 200);
delay(200);
}
When I call it in the ...
0
votes
1answer
2k views
How do I make specific tones with a piezo buzzer?
I am using a piezo buzzer and fiddling around with it a little bit. I currently have different tones with delays in between and I have to do a lot of trial and error for the piezo buzzer to play ...
0
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2answers
2k views
Start/Stop/Reset the melody using buttons
I have 2 buttons. Button 1 will start/stop the melody while the button 2 will reset the melody. My melody is "Happy Birthday".
How am I going to use the buttons to start/stop/reset the melody?
Here'...
0
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1answer
238 views
Need to filter low voltage from a piezo buzzer circuit [closed]
I have a 6-28VDC piezo buzzer I'm using at 24VDC. The line has 3-4 VDC when the output is off, which has a soft but annoying buzzer constantly. What the the easiest way to filter that out so I only ...
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vote
2answers
1k views
Adding external power supply to any arduino connected component
I have an Arduino Pro Mini 3.3v and the voltage is too small for my buzzer to ring loudly. I want to add a 9v battery to power the buzzer.
This is my current circuit:
Arduino (pin 9) => Buzzer +ve
...
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1answer
1k views
Controlling buzzer with assembly
I want to make a piezo buffer beeping with assembly code, but i haven't managed to yet. I have an Arduino UNO board (ATMega328p) and using avra and avrdude to build and load. The buzzer just stay ...
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vote
3answers
7k views
Circuit with buzzer not working :(
so I have a circuit with a buzzer and a resistor:
This circuit should be working, but for some reason the buzzer doesn't sound. I pushed the buzzer into the breadboard as hard as I could, I put the + ...
-1
votes
1answer
529 views
Error when using buzzer and IR sensor
I am doing code for IR sensor. My problem is when I put this code (below) for buzzer, there will be error.
C:\Program Files\Arduino\hardware\arduino\avr\cores\arduino/Tone.cpp:536: multiple ...
-1
votes
2answers
456 views
What would be the code for using Arduino UNO to alert by sound or LED when it detects a certain position through GPS?
I am in grade 6. I have a very nice pet dog in my house but it often enters Mom's kitchen to spoil all the foods. So I am thinking of a device to attach with him which can locate its position. But I ...
0
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2answers
711 views
Signal pin of buzzer is connected with which Arduino uno pin
I bought a 3 pin buzzer. It has positive, negative and signal pin.
I don't understand how this signal pin should be connected with the Arduino.
Here is reported the description page of the buzzer.
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votes
1answer
126 views
How to use TimerOne while calculating time?
I'm trying to get warning with buzzer while I get same values on 3 seconds. But first warning doesn't wait 3 seconds. Second warning is correct. Code is attached. BlinkLED1() method is same BlinkLED2. ...
1
vote
1answer
172 views
Using Piezzo Electric buzzer 10V with an Arduino Lilypad USB
I bought a 10 V Piezzo electric buzzer and I wonder how to connect it to an Arduino (in my case a Lilypad USB, but the question stands for any Arduino I guess...).
I hadn't realized this was a 10V ...
0
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2answers
5k views
Drive 12V Piezo Buzzer (Arduino)
I want to drive this 12V piezo buzzer:
http://www.conrad.com/ce/en/product/130256/Kemo-L001-High-Freqeuncy-Piezo-Speaker-Component-12-24-V
This is the circuit I am using.
The Arduino is powered by a ...
