To design an Android app-controlled table tennis ball smasher machine using TI MSP430G2553 LaunchPad module.Components Used:
· MSP430G2553 LaunchPad
· L298 motor driver
· HC-05 Bluetooth module
· 12V DC motorsWorking
It is a prototype which is designed to be used by the table tennis players so that they can practice and enhance their skills. It is operated with the help of a mobile application. First of all, the user needs to establish a connection between the mobile application and the bluetooth module. Afterwards, the user needs to turn the device ON so that data can be sent serially to the MSP module. Then comes the textbox which takes an integer value(ranging from 0 to 255) from the user as an input. When the ‘SEND’ button present on the app is pressed, communication enables and data is sent to the msp 430 via bluetooth. After receiving the data, the msp over-writes the value of the pulse width of the motor in the analogwrite function.
Input Value is proportional to Pulse Width which in turn is proportional to Speed of the motor
As the value of the Pulse Width changes, the motor driver commands the motors to rotate at different rpm as per the value. If the user wants to stop the motors, they just have to press the stop button on the app and the motor gets stopped in the real time.Figure of Merits:
· Easy to operate
· Speed as well as angle of projection can be altered
· Can be quite useful for the beginners to practice
· Can produce different types of ball movements like spin, fast pace, slow pace.
· Easily mobile
· Operates in real-timeApp Layout