#ARDUINO PIEZO NO SOUND FULL#
I've downloaded a program that will convert any audio file to hertz values, but even with the shortest sound effects I always end up with a page or two full of numbers, which is too many. So no nifty pots in combination for me!īasically I just want to take some sci-fi sound effects and convert them to hertz so I can use them with tone(frequency,duration). That looks like a really fun music toy to play with, but I'm running a tiny piezo buzzer in a tiny space, and I just need to hit a switch and have it play a little sound effect. It probably just needs small adjustments from someone with a more trained ear: tone(buzzerPin,2200) // then buzz by going highĭelayMicroseconds(10000) // and waiting moreĪhhhhhh! Why did my subscription to this thread not notify me that a cool person had replied to it!?!?!
#ARDUINO PIEZO NO SOUND SOFTWARE#
I'm mostly a software person, so I prefer to do it with code rather than more components)Īnyway, here it is. (I don't want to build an oscillator either. It's close, but it's pretty irritating and I'd like to smooth it out and get it doing that nice oscillating thing. Here's the sorta-kinda-wibbly-wobbly code I've got running the buzzer right now. Here's what a sonic screwdriver sounds like, for reference: It shouldn't really be that difficult, I just have a terrible ear and couldn't deconstruct a sound if my life depended on it. I don't want to use a speaker, just a buzzer. At first they were trying to get a pleasant sound, and the joke was that they were trying to get the least-annoying sound.I've got the Melody function working with a piezo buzzer, but I'm actually trying to generate creepy sci-fi type sounds like a sonic screwdriver or a ray gun or that theremin sound from twilight zone and such.
A type-T flip-flop will convert a rectangle wave to a square wave at half the frequency, but if you want a "pure tone" you want a sine wave.Ībout a million years ago the company I was working for was designing a new product and they wanted a "beep" for feedback when you pushed the buttons on a membrane keyboard. And if you adjust the pot, you're probably adjusting the duty cycle so you no longer have a square wave. It's been several years since I used a 555 but from what I recall, it's not easy to get a square wave. Did you calculate the frequency of the 555 oscillator? (I didn't.)ĭid you calculate the duty cycle? (I didn't.) A square wave has a 50% duty cycle and will sound the "least-harsh" of any rectangle wave. Those values are probably in the ballpark, but of course it depends on the frequency. Plus, a simple RC filter is far from perfect. Of course, when you filter-out the harmonics you are filtering-out some of the sound so it won't be as loud. The volume decreased, but not much elseĭid you make a low-pass filter or a high-pass filter?
#ARDUINO PIEZO NO SOUND GENERATOR#
You should probably look for a different chip and build a sine wave generator (if that's what you want) instead of trying to "fake it" with a 555.īut first, it wouldn't hurt to play around with Audacity and connect the piezo to your soundcard so you can diagnose your problems and decide where you want to go with this.
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