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{"id":1058,"date":"2021-05-19T20:23:44","date_gmt":"2021-05-19T20:23:44","guid":{"rendered":"https:\/\/cedtechjournals.org\/?p=1058"},"modified":"2021-05-19T20:23:49","modified_gmt":"2021-05-19T20:23:49","slug":"development-of-a-low-cost-microcontroller-based-public-digital-assistant","status":"publish","type":"post","link":"https:\/\/cedtechjournals.org\/2021\/05\/19\/development-of-a-low-cost-microcontroller-based-public-digital-assistant\/","title":{"rendered":"DEVELOPMENT OF A LOW-COST MICROCONTROLLER-BASED PUBLIC DIGITAL ASSISTANT"},"content":{"rendered":"\nABSTRACT<\/strong> This paper presents the development and implementation of a low-cost microcontroller-based public digital assistant that gives directions to visitors in a specified location within which it is programmed to operate. The system employs the use of several modules which include aWTV020SD-16P sound module which stores data in the form of sound, a speaker system that amplifies the sound, an HC-SR501 passive infrared (PIR)motion detector, a set of tact switches for input, and anILI 9340 graphical liquid crystal display (GLCD) screen, all of which are interfaced with a microcontroller equipped with a 32-bit Atmel ARM powered by a 9 V battery. The system was developed, implemented and found to perform optimally in accordance with the design specifications<\/p>\n\n\n\nKeywords: <\/strong>Digital Assistant, Sound Module, Tact Switches, GLCD Display, Microcontroller, PIR Sensor.<\/em><\/p>\n\n\n\n