MICROCONTROLLER-BASED VEHICLE TESTING UNITS: ALTERNATIVE SPEED MEASUREMENT TOOLS IN SPEEDOMETER TESTING

Abstract

The use of the Speedometer Tester test equipment that is currently available has not been fully implemented in motorized
vehicle testing units. One of the causes is the test equipment which is constrained due to damage caused by long -term use.
This research discusses the design of microcontroller-based speed measuring devices as an alternative to the use of test
equipment in speedometer testing when problems occur in the form of damage to the test equipment in the Motor Vehicle
Testing Unit. This type of research is development or Research and Development (R&D) which aims to produce new products
or improve existing products. Design of a Microcontroller-Based Speed Measuring Device consisting of an input, namely an
Infared Proxlimity Sensor, then an Arduino process control with an LCD output connected to a Thermal Print er which can
print measurement results. Based on the test results of the design tool for speed measuring devices on microcontroller -based
motorized vehicle testing units, an average success rate of 97.9% was obtained, and an average deviation of 2.1%. The
design performance of a microcontroller-based speed measuring device can function according to the program designed.