The present work describes the construction steps of an application on the MIT App online platform Inventor 2. It is able to calculate command frequencies for stepper motors, which are equivalent to vehicle speed values. These frequency values ​​can be entered in programming codes within controllers such as Raspberry Pi, Arduino, ESP 32, among others, which makes possible the development of a test bench for the speed reading system of vehicles for transporting loads and people.

The present work describes and presents a diagnostic proposal with the aim of expanding the repair process of speed reading systems of automobile vehicles based on the joint work of an automotive scanner and a test bench capable of simulating these speeds, with ideas of use in engineering education. The objective of this work is to develop a proposal for a diagnostic guide to be used by the automotive repairman. As a result, a roadmap is presented to the repairman from the on-screen view of the test bench.

This work presents a programming logic developed within a code written in Python language, guiding engineering teaching. Where with this logic it is possible to command a test bench for a vehicle speed measurement system. This command is made through the amount of rotation of a stepper motor based on frequency values. In addition, the programming logic can be applied to other devices or equipment that contain stepper motors, in order to promote its command through its amount of rotation and acceleration.