160Views4Replies

Author Options:

how many dc motors can be controlled using dtmf decoder mt8870 ? Answered

i am making a mobile controlled robot project using dtmf decoder ic
i want to control 11 motors is it  possible and how
which motor driver should i use
and can i use atmega 8 or 16 

Tags:dtmf

4 Replies

user
steveastrouk (author)2014-07-03

It gives 16 tones IIRC, so you can do 11 motors. If they're small, you can use the L293.

Select as Best AnswerUndo Best Answer

user
townyw (author)steveastrouk2014-07-04

how 16 the mobile keypad has only 12 keys so how to produce 16 tones

i am using 12v dc motors
so how many l293d should be used ??

Select as Best AnswerUndo Best Answer

user
steveastrouk (author)townyw2014-07-04

The DTMF standard supports 16 codes - but you knew that by reading the data sheet didn't you? The 293 only takes motor current up to

Select as Best AnswerUndo Best Answer

user
townyw (author)steveastrouk2014-07-06

I am planning to make a bot which can
move forward when 2 is pressed
backward -8

left-4

right-6

and want to control 4 more motor separately and 2 leds

i saw this layout but with this i can only control 2 motors

and where will i get code for this

Select as Best AnswerUndo Best Answer