Dear all.
I want to make a PIC based 2 digit Up/Down counter with two switchs, and I found the circuit below, on this web page.
As you see in the picture, both 7-segment displays are connected in parallel, so they will display the same number. It will count like this: 11, 22, 33.... or so.
I don't know if this is what they meant by 2-digit! and I can't figure if the PIC's program is wrote according for this output, i.e. for one digit actually.
I rarely work with programming and I really forgot what I've learned in my uC course.. due to the lack of practice.
I thought IC 74191 would work for me but it's a 4-bit counter meaning it's maximum counting number is 16, while I need a higher number, 8-bit counter is fine / any number in tens is fine...
Any Idea? or please suggest for me another circuit if possible.
Regards,
Hazim
I want to make a PIC based 2 digit Up/Down counter with two switchs, and I found the circuit below, on this web page.
As you see in the picture, both 7-segment displays are connected in parallel, so they will display the same number. It will count like this: 11, 22, 33.... or so.
I don't know if this is what they meant by 2-digit! and I can't figure if the PIC's program is wrote according for this output, i.e. for one digit actually.
I rarely work with programming and I really forgot what I've learned in my uC course.. due to the lack of practice.
I thought IC 74191 would work for me but it's a 4-bit counter meaning it's maximum counting number is 16, while I need a higher number, 8-bit counter is fine / any number in tens is fine...
Any Idea? or please suggest for me another circuit if possible.
Regards,
Hazim
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