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This component will show you how to use I2C module contorl external LED driver and matrix driver chip.
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The IS31FL3218 is comprised of 18 constant current channels each with independent PWM control.
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The IS31FL3736 is a general purpose 12*8 LEDs matrix driver.
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Pin assignment:
- master:
- GPIO18 is assigned as the data signal of i2c master port
- GPIO19 is assigned as the clock signal of i2c master port
- master:
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Connection:
- connect sda of sensor with GPIO18
- connect scl of sensor with GPIO19
- no need to add external pull-up resistors, driver will enable internal pull-up resistors.
is31fl3xxx
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