hello
I want to ask about two circuits..
The first: Robotic voice. How can I create Robotic voice circuit with the arduino (connect speaker and microphone to the arduino and the chip will chane my voice)
The second: BIg led matrix.
I want to create led matrix by myself: solder a lot of leds together - with distance of five centimeter each other. (about 100 leds). After it will be ready, I will cover it with half transfert paper. It will be nice effect.
How can I control this matrix with arduino ?
The first part sounds like you want an audio signal processor to "make my voice sound like a robot," not a solution that talks by "convert text into speech." I think there are some projects that do some basic reverb processing, using hardware like the Adafruit Wave Shield to drive the headphones/speakers.
The second part is just like controlling any light matrix, and there are a number of solutions. You're just wiring it up instead of buying a packaged light matrix. You said about 100 LEDs, so 10x10 sounds about right? Or are you looking for different colors at each spot? That would be 10x10x3 LEDs, a lot of soldering. The code depends a lot on what you want to show up on these lights.