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diff --git a/peripheral/libupm/src/nunchuck/nunchuck.h b/peripheral/libupm/src/nunchuck/nunchuck.h
deleted file mode 100644
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--- a/peripheral/libupm/src/nunchuck/nunchuck.h
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * Author: Jon Trulson <jtrulson@ics.com>
- * Copyright (c) 2015 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/i2c.h>
-
-#define NUNCHUCK_I2C_ADDR    0x52
-
-namespace upm {
-
-  /**
-   * @brief Wii Nunchuk library
-   * @defgroup nunchuck libupm-nunchuck
-   * @ingroup generic i2c accelerometer robok
-   */
-  /**
-   * @library nunchuck
-   * @sensor nunchuck
-   * @comname Wii Nunchuk
-   * @type accelerometer
-   * @man generic
-   * @web http://wiibrew.org/wiki/Wiimote/Extension_Controllers
-   * @con i2c
-   * @kit robok
-   *
-   * @brief API for the Wii* Nunchuk controller
-   *
-   * UPM module for the Wii Nunchuk controller. This module was tested with
-   * Wii Nunchuk connected to I2C via a Grove Wii Nunchuk adapter.
-   *
-   * See http://wiibrew.org/wiki/Wiimote/Extension_Controllers and
-   * http://wiibrew.org/wiki/Wiimote/Extension_Controllers/Nunchuck
-   * for more details on the controller and its protocol.
-   *
-   * A warning for the Grove Wii Nunchuk adapter: it has 2 traces on one
-   * side, and 3 traces on the other.  Do not match these up with the
-   * Nunchuk connector's traces. The connector's 'Grove'
-   * should be on the same side as the Grove interface socket on the
-   * adapter.
-   *
-   * @image html nunchuck.jpg
-   * @snippet nunchuck.cxx Interesting
-   */
-  class NUNCHUCK {
-  public:
-    /**
-     * NUNCHUCK constructor
-     *
-     * @param bus I2C bus to use
-     * @param addr I2C address to use
-     */
-    NUNCHUCK(int bus, uint8_t addr=NUNCHUCK_I2C_ADDR);
-
-    /**
-     * NUNCHUCK destructor
-     */
-    ~NUNCHUCK();
-
-    /**
-     * Writes value(s) into registers
-     *
-     * @param reg Register location to start writing into
-     * @param byte Byte to write
-     * @return True if successful
-     */
-    bool writeByte(uint8_t reg, uint8_t byte);
-
-    /**
-     * Reads value(s) from registers
-     *
-     * @param reg Register location to start reading from
-     * @param buffer Buffer for data storage
-     * @param len Number of bytes to read
-     * @return Number of bytes read
-     */
-    int readBytes(uint8_t reg, uint8_t *buffer, int len);
-
-    /**
-     * Initializes the controller. Here, we disable encryption after
-     * delaying for a time to ensure the controller is ready.
-     *
-     * @return True if initialization is successful
-     */
-    bool init();
-
-    /**
-     * Reads and updates the current state of the controller.
-     *
-     */
-    void update();
-
-    /**
-     * Current analog stick X position
-     *
-     */
-    int stickX;
-
-    /**
-     * Current analog stick Y position
-     *
-     */
-    int stickY;
-
-    /**
-     * Current accelerometer X value
-     *
-     */
-    int accelX;
-
-    /**
-     * Current accelerometer Y value
-     *
-     */
-    int accelY;
-
-    /**
-     * Current accelerometer Z value
-     *
-     */
-    int accelZ;
-
-    /**
-     * Button C pressed?
-     *
-     */
-    bool buttonC;
-
-    /**
-     * Button Z pressed?
-     *
-     */
-    bool buttonZ;
-
-  private:
-    mraa_i2c_context m_i2c;
-  };
-}
-
-