images: added few sparkfun images and updated respective license info

Signed-off-by: sisinty sasmita patra <sisinty.s.patra@intel.com>

src/ad8232/ad8232.h

@@ -61,10 +61,15 @@ namespace upm {
    * that should work, using information from the Sparkfun website.
    *
    * This example just dumps the raw data.
+   *
+   * @image html ad8232.jpg
+   * <br><em>AD8232 Heart Rate Monitor image provided by SparkFun under
+   * <a href=https://creativecommons.org/licenses/by-nc-sa/3.0/>
+   * CC BY-NC-SA-3.0</a>.</em>
+   *
    * @snippet ad8232.cxx Interesting
    */
 
-
   class AD8232 {
   public:
 

src/ecs1030/ecs1030.h

@@ -53,6 +53,7 @@ namespace upm {
    * @comname ECS1030 Non-Invasive Current Sensor
    * @type electric
    * @man sparkfun
+   * @web https://www.sparkfun.com/products/11005
    * @con analog
    *
    * @brief API for the ECS1030 Non-Invasive Current/Electricity Sensor
@@ -64,6 +65,11 @@ namespace upm {
    * measure a load up to 30 Amps which makes it great for building your own
    * energy monitors.
    *
+   * @image html ecs1030.jpg
+   * <br><em>ECS1030 Sensor image provided by Sparkfun under
+   * <a href=https://creativecommons.org/licenses/by-nc-sa/3.0/>
+   * CC BY-NC-SA-3.0</a>.</em>
+   *
    * @snippet ecs1030.cxx Interesting
    */
 class ECS1030 {

src/l298/l298.h

@@ -45,6 +45,7 @@ namespace upm {
    * @comname L298 Dual H-Bridge Motor Driver
    * @type motor
    * @man seeed sparkfun
+   * @web https://www.sparkfun.com/products/9670
    * @con gpio pwm
    *
    * @brief API for the L298 Dual H-Bridge module
@@ -55,6 +56,11 @@ namespace upm {
    * It requires 3 pins per DC motor (or h-bridge), or 4 pins for
    * the stepper (uses both h-bridges). 
    *
+   * @image html l298.jpg
+   * <br><em>L298 Dual H-Bridge Motor Driver image provided by SparkFun under
+   * <a href=https://creativecommons.org/licenses/by-nc-sa/3.0/>
+   * CC BY-NC-SA-3.0</a>.</em> 
+   *
    * Example driving a DC motor
    * @snippet l298.cxx Interesting
    * Example driving a stepper motor

src/maxsonarez/maxsonarez.h

@@ -44,6 +44,7 @@ namespace upm {
    * @altname EZ1, EZ2, EZ3, EZ4
    * @type sound
    * @man sparkfun
+   * @web https://www.sparkfun.com/products/8502
    * @con analog
    *
    * @brief API for the LV-MaxSonar-EZ family of ultrasonic rangers
@@ -58,6 +59,11 @@ namespace upm {
    *
    * This driver was developed using an LV-MaxSonar-EZ3.
    *
+   * @image html maxsonarez.jpg
+   * <br><em>LV-MaxSonar-EZ Ultrasonic Ranger image provided by SparkFun under
+   * <a href=https://creativecommons.org/licenses/by-nc-sa/3.0/>
+   * CC BY-NC-SA-3.0</a>.</em>
+   *
    * @snippet maxsonarez.cxx Interesting
    */
 

src/sm130/sm130.h

@@ -56,7 +56,12 @@ namespace upm {
  *
  * @brief API for SM130 RFID reader module
  * 
- *   This file defines the interface for sm130 RFID library
+ * This file defines the interface for sm130 RFID library
+ *
+ * @image html sm130.jpg
+ * <br><em>SM130 RFID Reader image provided by SparkFun under
+ * <a href=https://creativecommons.org/licenses/by-nc-sa/3.0/>
+ * CC BY-NC-SA-3.0</a>.</em>
  *
  * @snippet sm130.cxx Interesting
  */