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Discussion Groups | Rabbit-Semi | Re: analog driving rabbit pins
This is a group for folks designing and programming embedded systems using the Rabbit Semiconductor C-programmable microcontroller. Rabbit Semi is a spin-off from Z-World who makes a variety of embedded modules and tools. This group is not affiliated with either Rabbit or Z-World, but is a user forum for sharing ideas, asking questions, flaunting knowledge, and other typical user group stuff. The Rabbit is a powerful uC, supported by a full-featured C-compiler.
Re: analog driving rabbit pins - eilidhs_daddy - Apr 1 11:54:12 2008
--- In r...@yahoogroups.com, "Marco" wrote:
>
> Has anyone tried to drive high or low an input pin of a rabbit with a
> transitor buffer? I mean just generating a voltage from 0 to 5v, in
> order to be seen as a low or high ttl signal. thanks.
>
Well, of course, using something like a 2N3904 or 2n2222 transistor to
drive an input low (0v) or let it be pulled up via some nominal pull
up resistor to +5v. It's pretty normal stuff.
------------------------------------
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )
>
> Has anyone tried to drive high or low an input pin of a rabbit with a
> transitor buffer? I mean just generating a voltage from 0 to 5v, in
> order to be seen as a low or high ttl signal. thanks.
>
Well, of course, using something like a 2N3904 or 2n2222 transistor to
drive an input low (0v) or let it be pulled up via some nominal pull
up resistor to +5v. It's pretty normal stuff.
------------------------------------
(You need to be a member of rabbit-semi -- send a blank email to rabbit-semi-subscribe@yahoogroups.com )