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Dual Tone Multi Frequency (DTMF) technique for controlling the domestic and industrial appliances is being presented in this paper. A simple mobile phone which works on DTMF tone, used to control the domestic as well as industrial electrical appliances which with the control system which we have designed here for experimental study. In recent state of affairs, domestic, military and industrial applications use this technique because it can be operated from remote location. Radio frequency (RF) is also used for wireless communication but DTMF is an alternate for RF. Mobile phone is used to send the DTMF code from remote location to the control system. The blocks of system are mobile phone, Microcontroller (AT89S52), DTMF Decoder (MT8870D), Relays and power supply. This paper shows the working areas where the system is applicable and how it has advantages over RF.
Dr.Payal Jain, Zatin Gupta, Monika. 1970. "A2Z Control System- DTMF Control System". Global Journal of Computer Science and Technology GJCST Volume 10 (GJCST Volume 10 Issue 11).
Crossref Journal DOI 10.17406/gjcst
Print ISSN 0975-4350
e-ISSN 0975-4172
v1.2
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Total Score: 148
Country: Unknown
Subject: Global Journal of Computer Science and Technology
Authors: Dr.Payal Jain, Zatin Gupta, Monika (PhD/Dr. count: 1)
View Count (all-time): 181
Total Views (Real + Logic): 4796
Total Downloads (simulated): 337
Publish Date: 2010 03, Mon
Monthly Totals (Real + Logic):
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