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diff --git a/peripheral/libupm/src/groveehr/groveehr.h b/peripheral/libupm/src/groveehr/groveehr.h
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+/*
+ * Author: Jon Trulson <jtrulson@ics.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 <stdint.h>
+#include <sys/time.h>
+#include <mraa/gpio.h>
+
+namespace upm {
+  /**
+   * @brief Grove Ear-clip Heart Rate Sensor library
+   * @defgroup groveehr libupm-groveehr
+   * @ingroup seeed gpio medical
+   */
+
+  /**
+   * @library groveehr
+   * @sensor groveehr
+   * @comname Grove Ear-clip Heart Rate Sensor
+   * @type medical
+   * @man seeed
+   * @con gpio
+   *
+   * @brief API for the Grove Ear-clip Heart Rate Sensor
+   *
+   * UPM module for the Grove ear-clip heart rate sensor. It is used to measure your
+   * heart rate. 
+   *
+   * @image html groveehr.jpg 
+   * @snippet groveehr.cxx Interesting
+   */
+  class GroveEHR {
+  public:
+    /**
+     * GroveEHR constructor
+     *
+     * @param pin Digital pin to use
+     */
+    GroveEHR(int pin);
+    /**
+     * GroveEHR destructor
+     */
+    ~GroveEHR();
+    /**
+     * Returns the time of milliseconds elapsed since initClock()
+     * was last called.
+     *
+     * @return Elapsed milliseconds
+     */
+    uint32_t getMillis();
+
+    /**
+     * Resets the clock
+     *
+     */
+    void initClock();
+
+    /**
+     * Resets the beat counter to 0. The beat counter should be
+     * stopped via stopBeatCounter() prior to calling this function.
+     *
+     */
+    void clearBeatCounter();
+
+    /**
+     * Starts the beat counter
+     *
+     */
+    void startBeatCounter();
+
+    /**
+     * Stops the beat counter
+     *
+     */
+    void stopBeatCounter();
+
+    /**
+     * Gets the beat Counter
+     *
+     * @return Beat counter
+     */
+    uint32_t beatCounter();
+
+    /**
+     * Computes the heart rate
+     *
+     * @return Computed heart rate
+     */
+    int heartRate();
+
+  private:
+    /**
+     * Beat interrupt service routine (ISR)
+     *
+     */
+    static void beatISR(void *ctx);
+    
+    volatile uint32_t m_beatCounter;
+    struct timeval m_startTime;
+    mraa_gpio_context m_gpio;
+  };
+}
+
+