Hi all,
I am currently working on a circuit which aims at producing an ultrasonic sound wave(square) as output. Basically, I (will)use a 555 to produce the wave and amplify(LM358) it to my speaker.
Before purchasing components, I've tried to output such a wave(from an Arduino Uno) to a piezo element. The problem is I hear it(technically not possible).
After consulting the data sheet of the piezo element, I've learnt that it outputs from 1khz to 10khz, so I presume it was emitting on this limit.
My problem is how to output the sound; a real speaker or a tweeter? I plan on using a 9v battery. What component can I use, bearing in mind that the power supply?
Your help is much appreciated,
The Rookie xD
I am currently working on a circuit which aims at producing an ultrasonic sound wave(square) as output. Basically, I (will)use a 555 to produce the wave and amplify(LM358) it to my speaker.
Before purchasing components, I've tried to output such a wave(from an Arduino Uno) to a piezo element. The problem is I hear it(technically not possible).
After consulting the data sheet of the piezo element, I've learnt that it outputs from 1khz to 10khz, so I presume it was emitting on this limit.
My problem is how to output the sound; a real speaker or a tweeter? I plan on using a 9v battery. What component can I use, bearing in mind that the power supply?
Your help is much appreciated,
The Rookie xD