Development of the ultrasonic sensor based modification coordination test device.

The nature of the endurance component, particularly coordination, is the aspect of physical condition most supportive in essential circumstances. Developing a technology-based test instrument is necessary to support the aspect of physical condition, including good endurance. This is carried out to support and improve the performance of coordination capability requirements. This research aims to develop a prototype product for a modified coordination test tool based on an ultrasonic sensor. The development of this device was implemented as a modification coordination test instrument. A set of devices consists of four circuit parts. This circuit involves a sensor, a Wi-Fi module, an RGB LED, and a doorbell. The placement of each LED depends on the user's needs. The function of the sensor is to detect objects around the sensor. The RGB LED functions as a sign when a sensor receives stimulation. The research method used is the Research and Development (R&D) method, which involves developing a prototype or modified coordination test. In this research, the tool development process was carried out in collaboration with a team of experts to develop measuring tool products. The sampling technique for this research is purposive sampling because the samples taken must meet certain requirements and considerations. In this study, researchers selected 33 futsal players from Universitas Suryakancana students. Based on the analysis results, it is concluded that the prototype for maximum device test modification coordination with motion sensors and hardware has very high validity and reliability values. Therefore, by using this system, an athlete can obtain more accurate test results, preventing an athlete's mistakes during the test process. In addition, the testing process can be carried out more efficiently. Keywords: Device Development, Modification Coordination, Test Device