IS31FL3216A LED
Overview
This sample controls up to 16 LEDs connected to a is31fl3216a driver.
Each LED is gradually pulsed until it reach 100% of luminosity and gradually turned off again.
Once each LED was pulsed, multiple LEDs are pulse simultaneously using the
led_write_channels() API.
Test pattern
For each LED:
Increase the luminosity until 100% is reached
Decrease the luminosity until completely turned off
Increase the luminosity of LEDs 2 to 4 until 100% is reached
Decrease the luminosity of LEDs 2 to 4 until completely turned off
Building and Running
This sample can be built and executed when the devicetree has an I2C device node
with compatible issi,is31fl3216a enabled, along with the relevant
bus controller node also being enabled.
As an example this sample provides a DTS overlay for the LPCXpresso55S28
board (boards/lpcxpresso55s28.overlay). It assumes that a I2C
_is31fl3216a LED driver (with 16 LEDs wired) is connected to the I2C bus at
address 0x74.