pak-VII working now
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Posts: 46,084
turns out that I needed the buffer chip that one can buy with the
victor 883 motor driver (the one I'm using). The buffer chip is
between the pak and the motor driver. Otherwise the victor 883 can't
read the pwm signals.
--- In basicstamps@yahoogroups.com, "Sam" <hard-on@t...> wrote:
> Hello, I'm having problems driving a motor via a motor driver and
the
> PAK-VIII. I just called the motor driver's tech support and
> discovered this. Although I'm using a normal motor (not a
> modified/unmodified servo) the Motor driver that I'm using (Victor
> 883) interprets pwm the way explained in Al William's example with
a
> servo motor (http://www.al-williams.com/servo_bot.htm). a 2ms pulse
> width means forward, a 1ms pulse width mean backward. I changed the
> I/O pin numbers in the code to fit the I/O pins of the stamp that
I'm
> using (changed to: datap con 1 ; datapin var in1; clk con 2) . The
> motor driver tech help mentioned that the total length of the
signal
> should be 17ms long, is there a way to do this with the pak-VIII?
Any
> other ideas what might be wrong (I cc'ed this message to Mr.
Williams
> but I was wondering if anyone else has some tips too). Thanks!
victor 883 motor driver (the one I'm using). The buffer chip is
between the pak and the motor driver. Otherwise the victor 883 can't
read the pwm signals.
--- In basicstamps@yahoogroups.com, "Sam" <hard-on@t...> wrote:
> Hello, I'm having problems driving a motor via a motor driver and
the
> PAK-VIII. I just called the motor driver's tech support and
> discovered this. Although I'm using a normal motor (not a
> modified/unmodified servo) the Motor driver that I'm using (Victor
> 883) interprets pwm the way explained in Al William's example with
a
> servo motor (http://www.al-williams.com/servo_bot.htm). a 2ms pulse
> width means forward, a 1ms pulse width mean backward. I changed the
> I/O pin numbers in the code to fit the I/O pins of the stamp that
I'm
> using (changed to: datap con 1 ; datapin var in1; clk con 2) . The
> motor driver tech help mentioned that the total length of the
signal
> should be 17ms long, is there a way to do this with the pak-VIII?
Any
> other ideas what might be wrong (I cc'ed this message to Mr.
Williams
> but I was wondering if anyone else has some tips too). Thanks!