<p><b>@lebrush</b> requested changes on this pull request.</p>

<p>Untested but looks good and trust <a href="https://github.com/smlng" class="user-mention">@smlng</a> test skills :-). For now is Ok except 2 small style & copyright nitpicks. It would be nice to have implementation for the A pins in the future.</p><hr>

<p>In <a href="https://github.com/RIOT-OS/RIOT/pull/7392#discussion_r139079125">tests/periph_gpio_arduino/main.sketch</a>:</p>
<pre style='color:#555'>> @@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2017 Tom Keddie
+ * Copyright (C) 2014 Freie Universit├Ąt Berlin
</pre>
<p>I guess this Copyright line should go away</p>

<hr>

<p>In <a href="https://github.com/RIOT-OS/RIOT/pull/7392#discussion_r139079550">tests/periph_gpio_arduino/main.sketch</a>:</p>
<pre style='color:#555'>> @@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2017 Tom Keddie
+ * Copyright (C) 2014 Freie Universit├Ąt Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License v2.1. See the file LICENSE in the top level directory for more
+ * details.
+ */
+
+/**
+ * @ingroup     tests
+ * @{
+ *
+ * @file
+ * @brief       Manual test application for GPIO peripheral drivers using Arduino pin numbering
</pre>
<p>This line is really long, please trim to 80 characters</p>

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