![]() UART RX line requires an interrupt capable pin. Supported TMC drivers and features Driver You can also set the driver current with Marlin G-code commands, removing the need to adjust physical trimpots. These drivers can even detect when a motor hits an obstruction, so they can act as endstops for simplified wiring. Through SPI or serial control, you can change how the drivers manage motor current as well as the manner of current delivery. Trinamic stepper drivers control stepper motors with greater finesse and interpolate the micro-steps to produce extremely quiet motion. At the movement rates of 3D printers, and due to the ringing produced by stepper motors, the vibrations from these steps can be very loud to the human ear. Typically the motor is divided into 3200 steps per revolution, with 80 steps per millimeter of motion. These provide signals to the stepper motors to control the magnets and move them by micro-steps. Stepper motors in a 3D printer are controlled by a variety of driver chips such as the common A4988 and DRV8825. ![]() M306: Model predictive temperature control. ![]()
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