Think LED display, change the microcontroller to buttons on the opposite side of the case = My idea I've thrown around for a while. You press a button on the bottom, and a LED lights up at the top, so you can press buttons in the shape of a smiley face and the LED's light up like a smiley face.
I want it to be square, besides for the sides. Like about 6 inches diagonally? Depends on how many LED's, which I haven't even figured out. I think I'll make the case out of cardboard. Maybe I'll get it 3D printed when I have it working.
Power and connecting it to all of the LED's are my biggest problem. An AC adapter would probably be the best, but it would be weird having to plug it in. Maybe a few 9 volt batteries? The LED's will be diffused, they probably won't need to be at full brightness. Would it be possible to have enough LED's and small enough power to not need resistors?
I'm going to draw the circuit with Conductive Paint.
I want it to be square, besides for the sides. Like about 6 inches diagonally? Depends on how many LED's, which I haven't even figured out. I think I'll make the case out of cardboard. Maybe I'll get it 3D printed when I have it working.
Power and connecting it to all of the LED's are my biggest problem. An AC adapter would probably be the best, but it would be weird having to plug it in. Maybe a few 9 volt batteries? The LED's will be diffused, they probably won't need to be at full brightness. Would it be possible to have enough LED's and small enough power to not need resistors?
I'm going to draw the circuit with Conductive Paint.