45 lines
1.3 KiB
ReStructuredText
45 lines
1.3 KiB
ReStructuredText
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.. _lp503x:
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LP5030/6: 10 or 12 RGB channels
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###############################
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Overview
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********
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This sample controls up to 12 LEDs connected to a LP503x driver.
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First, for each LED information is retrieved using the led_get_info syscall
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and printed in the log messages. Next, from an infinite loop, a test pattern
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(described below) is applied to all the LEDs simultaneously (using the
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led_write_channels syscall) and then to each LED one by one (using the
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led_set_{brightness,color} syscalls).
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Test pattern
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============
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For all the LEDs first (using channel API) and then for each LED one by one:
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For each color in red green blue white yellow purple cyan orange:
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- set the color
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- turn on
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- turn off
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- set the brightness gradually to the maximum level
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- turn off
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Building and Running
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********************
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This sample can be built and executed on boards with an I2C LP5030/6 LED driver
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connected. A node matching the "ti,lp503x" binding should be defined in the
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board DTS files.
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As an example this sample provides a DTS overlay for the :ref:`lpcxpresso11u68`
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board (:file:`boards/lpcxpresso11u68.overlay`). It assumes that a I2C LP5030
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LED driver (with 10 LEDs wired) is connected to the I2C0 bus at address 0x30.
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References
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**********
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- LP503x: https://www.ti.com/lit/ds/symlink/lp5036.pdf
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