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+.. highlight:: cpp
+
+.. _lang-setup:
+
+setup()
+=======
+
+The ``setup()`` function is called when a sketch starts. Use it to
+initialize :ref:`variables <lang-variables>`, :ref:`pin modes
+<lang-pinmode>`, start using :ref:`libraries <libraries>`, etc. The
+``setup()`` function will only run once, after each power-up or reset
+of the Maple board.
+
+Example
+-------
+
+::
+
+    int buttonPin = 38;
+
+    void setup() {
+      pinMode(buttonPin, INPUT);
+    }
+
+    void loop() {
+      // ...
+    }
+
+.. include:: cc-attribution.txt