Re: DTMF
DTMF stands for Dual Tone Multiple frequency, it's usually use in telephone devices, when you press the button on your telephone set(your phone must be generate TONE, rather than PULSES), you may hear tones, they are DTMF.There are so many things related with DTMF, which one you want to pursue, you could either detect DTMF, generate DTMF and could perform several actions according to it.You could either use IC based solution if you want to use or you may use discrete component approach.It's a big section, comprising of different things...