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