Design of Wireless Electric Board for Writing and Sketching Using ARM Based Embedded System
Abstract
Multimedia applications are widely used for classroom teaching in current days. In traditional way of classroom teaching teacher have to write on a black board using dust producing chalks. But this is the conventional way that has been replaced by white boards. Chalks can produce lot of dust which causes hazardous effects on the health of students and teachers. These problems are overcome by using multimedia in classroom teaching. This helps in efficient teaching and learning process. With the advancements in technology, traditional black boards are replaced by smart equipments manufactured by companies like Hitachi, Panasonic etc. The proposed paper presents a wireless board which includes two modules viz. handheld terminal module and remote terminal module. Handheld module is controlled by user or teacher. Another module is remote module which consist of Raspberry Pi board (Broadcom BCM2835 700MHz ARM1176JZFS). It is also called as Rpi or RasPi. Teacher has to write on a resistive touch screen which is interfaced with ARM 7 board. Hand written signals are converted into electrical form & sent to ARM 11 Board by using wireless module (Zigbee). Remote unit collects, processes these signals & displays it in larger form on the screen using projector which can be interfaced with Raspberry Pi module using video out pin. This makes teaching and learning process more easy and efficient for the sake of students and teachers.
References
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