The Chip-LED Taping is much smaller than lead frame type components, thus enable smaller
board size, higher packing density, reduced storage space and finally smaller equipment to be
obtained.
Guarantees 5 V output driving capability and each channel is able to provide up to 20 mA. The output current can be adjusted separately for each channel by 8-bit analog and 12-bit digital dimming control.
Low dropout linear voltage regulator board that can provide 3.3V with up to 1A output and could operate down to 1V input-to-output differential. #firstpcbFlux
This circuit drives 10 LEDs making them flash to the rhythm of the music (using a TIP31C transistor to act as a voltage-controlled switch)
Credit: https://www.youtube.com/watch?v=3qZ3uA8hDmE