Can’t beat the price. Was pretty easy to assemble, even for me – no experience at all. However, I am unable to get this thing to go straight, even on a smooth hardwood floor. Sometimes it goes left, sometimes right. I don’t see any obvious friction points, and I’ve tried varying the power to each wheel (via arduino/software). I even tried a dedicated power suppy (using adafruit motor shield). Any ideas/help would be greatly appreciated. I’m on the verge of throwing this thing into the trash.
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