Search found 158 matches

by GoingFastTurningLeft
Thu Oct 12, 2006 9:35 pm
Forum: General Discussion
Topic: Does this kind of counter IC even exist?
Replies: 18
Views: 4960

That's what I had in mind and why i wanted to use an asychronous 4-bit up/down in the first place, which apparently doesn't exist.
by GoingFastTurningLeft
Thu Oct 12, 2006 12:38 pm
Forum: General Discussion
Topic: Does this kind of counter IC even exist?
Replies: 18
Views: 4960

I think you missed the point. Diodes are not going to send a certain number of timed pulses to an analog switch.

The original button->bcd design was done with a bunch of diodes and pull up resistors, though.
by GoingFastTurningLeft
Thu Oct 12, 2006 11:51 am
Forum: General Discussion
Topic: Does this kind of counter IC even exist?
Replies: 18
Views: 4960

I do enjoy road courses so there are times where I'll be in 4th and have to slam the brakes and downshift to 1st to make a real tight hairpin. I really don't need to skip gears going up, its just going down. Once I get into microcontrollers I'll probably redo this, but I'm not into them yet. Its onl...
by GoingFastTurningLeft
Thu Oct 12, 2006 9:17 am
Forum: General Discussion
Topic: Have some spare wallets ?
Replies: 8
Views: 2115

Its up to 1.7 Mil and still not met the reserve.

But they offer low monthly payments!
by GoingFastTurningLeft
Thu Oct 12, 2006 8:47 am
Forum: General Discussion
Topic: Does this kind of counter IC even exist?
Replies: 18
Views: 4960

Actually, that is something like my design. This is what i've come up with. Gear is in BCD, with 0 = R, 1 = 1, etc. Button entry block - consists of a couple logic gates arranged so that pushing the gear button outputs its 3 bit BCD value. Its initially being designed for a 4 speed but i could upgra...
by GoingFastTurningLeft
Wed Oct 11, 2006 1:15 pm
Forum: General Discussion
Topic: October Issue
Replies: 17
Views: 6591

I just subscribed in early september, haven't gotten my october yet. They said that would be my first issue...

Guess I need to do that 'free online with print' signup thing.
by GoingFastTurningLeft
Wed Oct 11, 2006 1:12 pm
Forum: General Discussion
Topic: Does this kind of counter IC even exist?
Replies: 18
Views: 4960

Does this kind of counter IC even exist?

I'm finishing up my design for an H-pattern gear shifter that interfaces to a console video game wheel that only has gear up and down buttons. It only uses a couple discrete logic ICs. I need it to keep track of what gear its in, and I designed that part of the circuit to use a 4-bit binary up/down ...
by GoingFastTurningLeft
Wed Sep 06, 2006 7:45 pm
Forum: General Discussion
Topic: Car Digital Tach Display
Replies: 2
Views: 1198

Car Digital Tach Display

I'm looking for some pointers into this... I want to build a digital tach for my car. I'm not looking to do anything microcontroller based (at least at this point in time). From what I understand, it either emits a pulse every revolution or twice a revolution, which i've been able to condition this ...