Questions tagged [buzzer]
The buzzer tag has no usage guidance.
0
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3answers
302 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
votes
2answers
35 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 ...
0
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4answers
74 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
votes
1answer
515 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 <...
1
vote
2answers
121 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
69 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
31 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
54 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
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2answers
437 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
votes
3answers
2k 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
92 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 ...
3
votes
5answers
580 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
44 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
854 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
180 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
200 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
1k 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
votes
1answer
205 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 ...
1
vote
2answers
902 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
...
1
vote
1answer
755 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 ...
2
votes
3answers
5k 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
435 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
434 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
votes
2answers
636 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.
-1
votes
1answer
97 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
152 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
votes
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 ...
