Multi-positions control using smartphone

摘要

Engineering is of a great benefit in humans' lives. Engineering helped in the creation of technologies that are used to serve the society, making and the lives of individuals easier. Through applying the developed technologies such as the Smartphone, the objective of this paper is to connect the electric devices with the Smartphone to facilitate the control of machines that can serve humanity and their rapidly developing needs. This connection circuit is designed by using Arduino Uno, Raspberry pi 3 model B, driver, and two types of converters — buck converter and the Rx, Tx build-in converter. The Arduino Uno is central to the system used in the paper, as it is the main piece that controls all the motors and the arm. Whereas the Raspberry Pi 3 model B is important for the functioning of the application, which is further used in the Smartphone to send serial to the Arduino Uno. In addition, the Raspberry camera has been connected to the Raspberry Pi 3 model B in order to administer the whole process of the system used. Moreover, the drivers are used to essential in the functioning of the motors and regulate their directions. In regards to the converters, the Rx, Tx converts the voltage level between the two microcontrollers that have been used in the system — the Arduino Uno and the Raspberry Pi 3 model B. On the other hand, the buck converter has been used to reduce the DC voltage. Overall, this system can be applied on a CNC machine that works as an auto store — “take the stuff to store it and give us the stock”. Finally, the cost of implementing such a system is reasonable, and in regards for the design, it is a reliable and easily applicable design, regardless of the few challenges that appeared along the way.