Led ring of 36 white leds driven by the IS31FL3236A led driver
Two-layer pcb 0.84 x 0.75 inches (21.3 x 19.1 mm) with 36 LiteOn LTW-C281DS5 InGaN white leds driven by the ISSI IS31FL3236A constant-current led driver with individual PWM control. Simple I2C control via a host MCU.
Sketch demonstrates various lighting effects and modes, etc. This led driver is cheap and super easy to use.
