Problems: Technology is very important in sports. both on and off the field. The use of technology-based applications in sports is very important in supporting athlete training systems and producing accurate data for measuring sports performance. Purpose: This research involves developing a conventional return board into a digital-based return board. https://www.ivoryjinelle.com/amazing-offer-Ohio-University-Ohio-Bobcats-iPhone-13-Pro-Max-Impact-Case-p22134-limited-grab/