gururise / directional_speaker Goto Github PK

Do you have a version of the schematic with the Step-up module?
Thanks!

Hello!
Amazing project!!
I'm trying to recreate it at the moment but I'm having a hard time interpreting the circuit diagram in your video, especially the chip called LM358 that's represented twice. How is it connected to what? Could you please send me or upload a larger photo of the built curcuit as well as an updated circuit diagram?
Sorry for my noob questions and requests but I don't really have a background in electronics...
Many thanks in advance!

Hi!
amazing project.
What if I want to go bigger?
meaning, my neighbours are making too much noise, and I want to give them some taste of their own medicine without waking everyone else in the block.
How do I make this scale up ?

I think in the the schematic you provide the sleeve represented by s should be gnd and the tip represented by t should go to c1 and so on pls see the below images https://images.app.goo.gl/9vak62NHwoqZspwSA
https://images.app.goo.gl/bEQrghuzYJejZzAt8
https://images.app.goo.gl/gezpMvZCtVCDp5Xs5

Great Work!

I'm hoping you can shed some light on a couple things. I'm trying to use the STM32F407VET6 board I got off Amazon.com. It has a microSD card and I was hoping to play audio off of the card and modulate to 40khz carrier. In main.cpp you have PWM_OVERFLOW set to 1800 for the 72Mhz clock. I believe the STM32F407VET6 is 168mhz. Is it simply a matter of changing it to 4200?

I need to do some more research on the form that the ADC data comes back as to then fill with decoded wav or mp3 data. Do you know of any good libraries for the STM32 that handle Audio decode?

Any help would be greatly appreciated. Trying to make a device with a few predone sounds (knocking door, whispers, etc..) for holloween. Already built the SonicSurface (https://www.instructables.com/SonicSurface-Phased-array-for-Levitation-Mid-air-T/) for writing messages on a dusty table. :)