Design of a Wireless Laser Pointer Based on MCU

Sheng Dong; Zhe Xu Wang; Xi Rui Gao; Jing Yao

doi:10.4028/www.scientific.net/AMM.380-384.3258

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 380-384Design of a Wireless Laser Pointer Based on MCU

Design of a Wireless Laser Pointer Based on MCU

Abstract:

Wireless laser pointer is widely used in multimedia teaching. Due to the usage of professional high speed USB interface chips and USB2.0 protocol, the price of a wireless laser pointer in the market with the only function of changing PPT pages is about 50 dollar.This paper completes a very low price design of wireless laser pointer for multimedia teaching use based on STC89C52RC MCU and nRF905 single-chip radio transceivers,which can complete not only PPT page turning forward or backward but also black screen, drawing lines with fluorescent pen or needlepoint.