Greetings,
I need to design a circuit to control 36 LEDs individually (5 of which are dual color). Basically just on/off operations; no fading. It needs to be able to be controlled by a Raspberry Pi (I don't care if it's through I2C, UART or GPIO). I presume it would be easiest to achieve as a digital circuit, but I am not very experienced with hard core circuit design. I looked at LED Driver IC's, but they usually can only drive up to 3 or 4 LED channels each. Plus it seemed like overkill since I don't need fading, just on/off. I thought a regular Switch IC might be the best way to go, but I wasn't sure if there was one available that can be triggered any of the Pi outputs. Can anyone put me on the right path?
I need to design a circuit to control 36 LEDs individually (5 of which are dual color). Basically just on/off operations; no fading. It needs to be able to be controlled by a Raspberry Pi (I don't care if it's through I2C, UART or GPIO). I presume it would be easiest to achieve as a digital circuit, but I am not very experienced with hard core circuit design. I looked at LED Driver IC's, but they usually can only drive up to 3 or 4 LED channels each. Plus it seemed like overkill since I don't need fading, just on/off. I thought a regular Switch IC might be the best way to go, but I wasn't sure if there was one available that can be triggered any of the Pi outputs. Can anyone put me on the right path?