"Because LEDs are essentially microchips, they can be programmed."
This is incorrect. The die process size (and chemistry) used for making LEDs would make absolutely terrible microchips. All programmable signs have separate control chips.
This is incorrect. The die process size (and chemistry) used for making LEDs would make absolutely terrible microchips. All programmable signs have separate control chips.
I'm quite aware. LED normally refers to the packaged die, not the die itself when people are talking about it like this. Having the controller inside makes absolute sense, the alternative is running hundreds of rows of PWM from your driver chips out everywhere.