Smartphone, voice, and infra-red remote controlled learning kit with feedback voice

Abstract

This paper presents a new tool for teaching the alphabets and numbers of different languages to children. This device is made with a large 32X32 Matrix Display, with the ability to show alphabets of different languages and numbers with feedback sounds, it can be controlled using voice commands, TV remote control, and an android application in a smartphone. Moreover, the device is designed in such a manner, to display a real-time clock at the first run. To obtain data such as time and calendar, an RTC (Real-Time Clock) module is interfaced with Arduino Mega 2560. To display each character on 32X32 Matrix display, the monochrome bitmap format of each character was taken and converted into the required format using the software called “LED Matrix Studio”. Based on the UART communication protocol, mobile and voice command controls are executed through HC 05 Bluetooth Module. Further, the TV remote sends a code to the IR receiver in NEC format for each button that is pressed. Since the power consumption of the device is quite low, it can be used in places where the famine of electricity has empowered. The device can be added with some additional features, such as music, animation, mathematical search. A noisy environment will affect the operation of the device for voice commands. Although, the device will make learning procedures easy for children and teaching procedures easy for teachers.