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This research aims at designing a supporting device for Badminton footwork practices based on Microcontroller Technology. The development method consists of several designing stages starting from product design, design validation, design improvement, design making, product trial, product revision, and practice trial. The result shows that this device may become the supporting device for a coach to guide the athletes during the footwork practices. This device may show the targeted locations to reach by the athletes in one particular time through the display lights. The device may be manually or automatically operated and has the function as a measuring device for an athlete to meet his/her practice targets. This device has a special abilityto measure an athlete's achievement level in performing each set of practices and to be well adjusted with the difficulty levelsas needed. This device's practice difficulty level may be integrated and varied based on the time practice parameter, number of footstepsin each set of practices or footstep-distance parameter through the target sensors located in the field. A validity test is conducted by the experts concluding that the design of this device may be utilized to well support the Badminton footwork practices.

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