Re: 555 Timer circuit Request
Posted by
Alan Marconett KM6VV
on 2001-05-22 10:23:51 UTC
Hi Bill,
To add limits, a logical AND function would be needed. "AND" a low
"LIMITS OK" signal with the active low STEP line. Just a couple of
gates! Shucks, I don't have any limit sw's on the Sherline yet! I
think If I was going to add much to it, I'd use a PIC. And LCD 2-line
display. and...
Alan KM6VV
wanliker@... wrote:
To add limits, a logical AND function would be needed. "AND" a low
"LIMITS OK" signal with the active low STEP line. Just a couple of
gates! Shucks, I don't have any limit sw's on the Sherline yet! I
think If I was going to add much to it, I'd use a PIC. And LCD 2-line
display. and...
Alan KM6VV
wanliker@... wrote:
>
> Glad to hear it, can you incorporate limits etc. Maybe removing the
> direction signal would do it??????
> bill