Introduction This specific project seeks to demonstrate a method of controlling a DC motor from a distance with the help of tones which are formed on a mobile phone keypad in the form of Dual Tone Multi-Frequency (DTMF) tones. DTMF technology enables one to distinguish every button on a phone keypad; each key produces two […]
SPEED REGULATION OF DC MOTOR USING DTMF KEYPAD Read More »
INTRODUCTION: A lot of electricity is wasted due to ignorance or fault of the user. Sometimes a person in the room turns on all the electric equipments which is of no use to them. As an example, supposedly a person enters in the hall or conference hall (where a large number of tube lights or fans
In mathematics a signal is a real function of a real variable f(t). In electronics it represents the evolution of a voltage (or a current) over the time and depends on the performances of the stage of the amplifier. Through a memory buffer, samples move to a digital-to-analog converter that produces a voltage signal, after
Signal Generation with MATLAB. Example of DTMF in telephony Read More »
Generally, appliances used in our home are controlled with the help of switches. These days, you can see automation of these appliances using many technologies. This article presents the controlling of home appliances using DTMF technology. DTMF is acronym for Dual Tone Multi Frequency. So, just think when you make call for customer care, they will
DTMF Controlled Home Automation System Circuit Read More »
(PRWEB) May 6, 2006 The CMX867A is a newly enhanced V.22 multi-standard modem IC, specifically targeted at telephone based information systems. The key feature of the CMX867A is the inclusion of a high-quality DTMF decoder, offering excellent immunity to falsing on voice, which greatly increases the applications to which this advanced modem IC is
Multi-Standard Modem Includes High-Quality DTMF Decoder Read More »
