And your DTMF IC, what will that be?i know the idea but im struggling coz i dont know how to program this. im planning to use pic16f877a. its the one that i have
Yeah, software can do wonders, but sometimes the only reasonable solution is to let hardware do the real work and just orchestrate the I/O with the software.Your DTMF chip will do almost all of work for you.
I do not think you will get any more help before you show us a schematic on how you are going to set things up. Which port (s) are you going to use for LCD, which port are you going to use for DTMF chip and so on. After this step you may start on your programming. And as far as I can see the programming is quite easy. Just do it!@Georacer, can i still use the idea of retched?
Retched suggested that you used the cellphone style to encode the characters and a mechanism to detect sequential button presses.@Georacer, can i still use the idea of retched?
What I say is that you shouldn't spam the thread with 1 phrase questions.
oh im so sorry.
-_-ahhm, actually i cant figure out your idea, can you explain it further? please. if you dont mind. perhaps it could help. thanks