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diff --git a/peripheral/libupm/src/mic/mic.hpp b/peripheral/libupm/src/mic/mic.hpp
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+/*
+ * Author: Brendan Le Foll <brendan.le.foll@intel.com>
+ * Copyright (c) 2014 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#pragma once
+
+#include <string>
+#include <mraa/gpio.h>
+#include <mraa/aio.h>
+
+struct thresholdContext {
+    long averageReading;
+    long runningAverage;
+    int averagedOver;
+};
+
+namespace upm {
+
+/**
+ * @brief Analog Microphone library
+ * @defgroup mic libupm-mic
+ * @ingroup seeed pwm sound gsk
+ */
+/**
+ * @library mic
+ * @sensor microphone
+ * @comname Analog Microphone
+ * @altname Grove Sound Sensor
+ * @type sound
+ * @man seeed
+ * @web http://www.seeedstudio.com/wiki/Grove_-_Sound_Sensor
+ * @con pwm
+ * @kit gsk
+ *
+ * @brief API for the Analog Microphone
+ *
+ * This module defines the Analog Microphone sensor
+ *
+ * @image html mic.jpg
+ * @snippet mic.cxx Interesting
+ */
+class Microphone {
+    public:
+        /**
+         * Instantiates a Microphone object
+         *
+         * @param micPin Pin where the microphone is connected
+         */
+        Microphone(int micPin);
+
+        /**
+         * Microphone object destructor
+         */
+        ~Microphone();
+
+        /**
+         * Gets samples from the microphone according to the provided window and
+         * number of samples
+         *
+         * @param freqMS Time between each sample (in microseconds)
+         * @param numberOfSamples Number of sample to sample for this window
+         * @param buffer Buffer with sampled data
+         */
+        int getSampledWindow (unsigned int freqMS, int numberOfSamples, uint16_t * buffer);
+
+        /**
+         * Given the sampled buffer, this method returns TRUE/FALSE if threshold
+         * is reached
+         *
+         * @param ctx Threshold context
+         * @param threshold Sample threshold
+         * @param buffer Buffer with samples
+         * @param len Buffer length
+         */
+        int findThreshold (thresholdContext* ctx, unsigned int threshold, uint16_t * buffer, int len);
+
+        /**
+         *
+         * Prints a running average of the threshold context
+         *
+         * @param ctx Threshold context
+         */
+        void printGraph (thresholdContext* ctx);
+
+    private:
+        mraa_aio_context    m_micCtx;
+};
+
+}