What is a stepper driver?
A stepper driver is an electronic controller for a stepper motor. Controls current to the motor coils per commands from firmware. Modern drivers (TMC2209, TMC2226) are quiet and accurate.
Types
- A4988 - cheap, noisy
- DRV8825 - improved A4988
- TMC2208/2209 - quiet standard
- TMC2240 - newest
StealthChop vs. SpreadCycle
StealthChop - quiet, low speeds. SpreadCycle - noisier, accurate at high speeds.
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