<h3>Contribution description</h3>
<p>Add support for the TCA6507 chip in RIOT.</p>
<p>The TCA6507 is a LED driver over I2C which allow to turn ON/OFF, Blinking, and Fading at Programmable Rates. More detailled description can be found in the following datasheet.<br>
<a rel="nofollow" href="http://www.ti.com/lit/ds/symlink/tca6507.pdf">http://www.ti.com/lit/ds/symlink/tca6507.pdf</a></p>
<p>No evaluation kit for TCA6507 is available, you must a have a custom board if you want to test it.</p>
<h3>Testing procedure</h3>
<p>This module can be tested with any board with I2C support.</p>
<p>This code have been tested on a custom board based on the ST B-L072Z-LRWAN1 board.</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/RIOT-OS/RIOT/pull/12339'>https://github.com/RIOT-OS/RIOT/pull/12339</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>drivers: Add support of TCA6507</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/RIOT-OS/RIOT/pull/12339/files#diff-0">drivers/Makefile.dep</a>
    (4)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/RIOT-OS/RIOT/pull/12339/files#diff-1">drivers/Makefile.include</a>
    (4)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/RIOT-OS/RIOT/pull/12339/files#diff-2">drivers/include/tca6507.h</a>
    (138)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/RIOT-OS/RIOT/pull/12339/files#diff-3">drivers/tca6507/Makefile</a>
    (1)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/RIOT-OS/RIOT/pull/12339/files#diff-4">drivers/tca6507/include/tca6507_internals.h</a>
    (52)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/RIOT-OS/RIOT/pull/12339/files#diff-5">drivers/tca6507/include/tca6507_params.h</a>
    (72)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/RIOT-OS/RIOT/pull/12339/files#diff-6">drivers/tca6507/tca6507.c</a>
    (252)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/RIOT-OS/RIOT/pull/12339/files#diff-7">drivers/tca6507/tca6507_saul.c</a>
    (31)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/RIOT-OS/RIOT/pull/12339.patch'>https://github.com/RIOT-OS/RIOT/pull/12339.patch</a></li>
  <li><a href='https://github.com/RIOT-OS/RIOT/pull/12339.diff'>https://github.com/RIOT-OS/RIOT/pull/12339.diff</a></li>
</ul>

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