Andy1845c
Active Member
Since I haven't been able to figure out how to make my rotary encoder drive my bipolar stepper motor..... I ordered a couple L297 drivers.
I was going off this schematic **broken link removed**
I know they are driving a unipolar motor there, but shoudn't this also work with a bipolar motor?
It says on the L297 datasheet that the 297 is normally used with the 298 bridge driver. Since I am not the brightest crayon in the box, I didn't read the entire datasheet before I placed my order, and missed the part about the 298.
I am trying to get it to work with the ULN2003 like in the schematic in the link.
Is there any reason this won't work? I haven't been able to get it working.
In the link, why is the CLOCK going into the CW/CCW pin and the DIRECTION going to CLOCK? Is this correct?
Are the 3.3k resistors just pull ups?
I was going off this schematic **broken link removed**
I know they are driving a unipolar motor there, but shoudn't this also work with a bipolar motor?
It says on the L297 datasheet that the 297 is normally used with the 298 bridge driver. Since I am not the brightest crayon in the box, I didn't read the entire datasheet before I placed my order, and missed the part about the 298.
I am trying to get it to work with the ULN2003 like in the schematic in the link.
Is there any reason this won't work? I haven't been able to get it working.
In the link, why is the CLOCK going into the CW/CCW pin and the DIRECTION going to CLOCK? Is this correct?
Are the 3.3k resistors just pull ups?