Hey guys,
I'm looking for a little help. I'm just trying to do the old stepper motor (hybrid-bipolar) using a basic stamp 2 chip with a L293D push-pull driver.
All looks good when I attach LEDs to the output of the driver, where switching brings the voltage between 4 - 8v. When I hook the stepper up to the ports there is only a voltage of ~0.3 on the output pins and the stepper vibrates quite slowly. The shaft also turns very easily by hand
I have 9v Powering the driver and 5v VDD from a DC adapter so I don't think power is an issue
I think the step sequence is ok, and I'm pretty sure its wired up correctly but I'm just short of banging my head against the wall. I've been playing about for a fair few hours so any suggestions would be greatly appriciated.
Cheers
Martyn
I'm looking for a little help. I'm just trying to do the old stepper motor (hybrid-bipolar) using a basic stamp 2 chip with a L293D push-pull driver.
All looks good when I attach LEDs to the output of the driver, where switching brings the voltage between 4 - 8v. When I hook the stepper up to the ports there is only a voltage of ~0.3 on the output pins and the stepper vibrates quite slowly. The shaft also turns very easily by hand
I have 9v Powering the driver and 5v VDD from a DC adapter so I don't think power is an issue
I think the step sequence is ok, and I'm pretty sure its wired up correctly but I'm just short of banging my head against the wall. I've been playing about for a fair few hours so any suggestions would be greatly appriciated.
Cheers
Martyn