3D Simulated LED Candle Using IS31FL3731 - Lumissil

Video demonstrates a 3D LED candle using 432 LEDs driven by three IS31FL3731 devices to simulate a candle blowing in the wind.

The IS31FL3731 is a compact LED driver for 144 single LEDs. The device can be programmed via an I2C compatible interface. The IS31FL3731 offers two blocks each driving 72 LEDs with 1/9 cycle rate. The required lines to drive all 144 LEDs are reduced to 18 by using the cross-plexing feature optimizing space on the PCB. Additionally each of the 144 LEDs can be dimmed individually with 8-bit allowing 256 steps of linear dimming.

To reduce CPU usage up to 8 frames can be stored with individual time delays between frames to play small animations automatically. LED frames can be modulated with audio signal.

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Видео 3D Simulated LED Candle Using IS31FL3731 - Lumissil канала Lumissil Microsystems