We connected the windings to the power source in the simplest way - through transistor switches. In previous lessons, I have already touched on this topic.
#ARDUINO STEPPER MOTOR STEP DIRECTION DRIVERS#
The main disadvantage of simple stepper motor drivers is the lack of stabilization of the winding current.
complex switching to accelerate the current drop in the windings Ĭurrent stabilization of the phase windings.protection of output swithes from load short circuit.In addition, STEP/DIR drivers provide a wide range of additional functionality: STEP/DIR driver is a hardware stepper motor control module that uses the STEP/DIR protocol to communicate with the microcontroller. Another way for controlling stepper motors is to use STEP/DIR drivers. And the phase switching program is not complicated, it does not take up a lot of microcontroller resources. Just four transistor switches for unipolar stepper motors or the L298N chip for bipolar ones are enough to control them. The advantage of this solution is obvious - simplicity and minimum of hardware. All the logic of the operation was implemented in the microcontroller program. In previous lessons, to connect stepper motors to the Arduino board, we used simple drivers-switches, which, according to signals from the microcontroller, switched the motor windings. Previous lesson List of lessons Next lesson In this article, I talk about STEP/DIR stepper motor drivers, the advantages of using them, and the STEP/DIR control interface.
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