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It could be an honest product if it was not marketed as being suitable for a stepper motor.
Okay, not too bad for one of those small high speed dc motor.
What is wrong with it!
1) It has a high voltage drop (at least 2 volts), and
2) the rated current is NOT achievable. The rated current is not achievable because the "cute" heat-sink" is way too small.
3) It has no current regulation (that is on board), yes you can use an Arduino to monitor the current and PWM the H-bridge. Still the maximum frequency is about 30kHz. Not great. I wasted a lot of time doing this.
4) And of course no built in micro stepping.
An A4988 or a DRV8825 are much better products for steppers.
For DC motors (that deliver the rated current) have a look at SparkFun's TB6612FNG.
Are you sure? yes | no
I hope your project will be better than the L298 H-Bridge.
The L298 H-Bridge is a dreadful product.
I am curious: Why is it dreadful? To me it always felt super useful and nice for prototyping. Sure you can get a smaller h-bridge, but this one does it's job perfectly fine. What's dreadful about it?
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