hello i am working in this project of using a standar counter up/down so the thing is thats i am not using buttons insted i am using some part i took from a old radio and i make this:
http://www.youtube.com/watch?v=4ZtqW-W3XWk
Turn right go "Down", Turn left go "Up" easy right ? then i said "oh ok, i can make a counter from 0 to 77 (octal) or 6 bits using two 74LS191 and make this:
http://www.youtube.com/watch?v=FpIYzvLM38M&feature=youtu.be
so then cascading using only one "i dont know how is called thiny" i can turn and make a easy 0 to 77 counter and 77 to 0 but they are 65 combination it will take to much time incrementing a unit at time.
So using two "i dont know how is called thiny", one for the units and the other for "tens" capable of going "up" and "down" like normal i come to this using livewire.
and when i turn one the other can`t work, so ok all is woking but how could i make with less ic ? and well only using TTL LS ic and well what you guys think about my project ?
http://www.youtube.com/watch?v=4ZtqW-W3XWk
Turn right go "Down", Turn left go "Up" easy right ? then i said "oh ok, i can make a counter from 0 to 77 (octal) or 6 bits using two 74LS191 and make this:
http://www.youtube.com/watch?v=FpIYzvLM38M&feature=youtu.be
so then cascading using only one "i dont know how is called thiny" i can turn and make a easy 0 to 77 counter and 77 to 0 but they are 65 combination it will take to much time incrementing a unit at time.
So using two "i dont know how is called thiny", one for the units and the other for "tens" capable of going "up" and "down" like normal i come to this using livewire.
and when i turn one the other can`t work, so ok all is woking but how could i make with less ic ? and well only using TTL LS ic and well what you guys think about my project ?