Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Hi !
I am having A LOT of trouble to make this buzzer buzz. I am building a rain detector. When there's water the system closes, the LED lights and the buzzer buzzes, expect its not buzzing. I do not understand what I did wrong, I reconnected the circuit 10 times. Please help me. I am using a 9...
I am looking for an extremely loud buzzer for a personal project. I'm looking for something that is about 130 db at the source. Ideally, I would like to find something like what is used in all the personal defense keychains. The buzzer needs to be small and the voltage needs to be less than 20...
Hello Everyone...
I am trying to make a Low Voltage Buzzer Warning that beeps on and off, without a microcontroller....
I have a latching detection circuit here that puts out about a 6V signal until the battery is dead, then it drops off and latches off until it is reset....
This is the...
My Arduino project is a level indicator that uses a Piezo transducer.
I've used the "tone" function to manipulate the sound to raise the pitch when the desired level is reached.
With the 'tone' function I can very precisely control the pitch and speed of the speaker.
However, the project runs...
Hey guys, new to this forum and would really appreciate your help :)
I am making an alarm which will trigger a buzzer from about 30ft away and a noise which will help you find the object that you had lost.
In perspective I am making a lost and found type of device. Whilst there are similar...
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