Hello all,
This is my first post on the forums, I have searched for a solution to my problem and have some ideas but nothing I'm 100% sure on, here goes:
I need to be able to send out a high signal from a pic on 19 pins, only one at a time. For this I believe a ring counter would work?
And also I need to receive a high signal from 19 different pins, again only checking one at a time, For this I think I need a form of reverse ring counter that lets me clock what pin its looking at and check if it is high? I'm not sure what would do this.
I could just get a pic with 38 I/O but i would like to use a smaller cheaper pic and have spare pins for other components.
Also any example ic part numbers would be great as I find data sheets a great learning source.
Thank you for reading and hopefully helping
Solexious
This is my first post on the forums, I have searched for a solution to my problem and have some ideas but nothing I'm 100% sure on, here goes:
I need to be able to send out a high signal from a pic on 19 pins, only one at a time. For this I believe a ring counter would work?
And also I need to receive a high signal from 19 different pins, again only checking one at a time, For this I think I need a form of reverse ring counter that lets me clock what pin its looking at and check if it is high? I'm not sure what would do this.
I could just get a pic with 38 I/O but i would like to use a smaller cheaper pic and have spare pins for other components.
Also any example ic part numbers would be great as I find data sheets a great learning source.
Thank you for reading and hopefully helping
Solexious