where I want to insert my homing process. nToNewPosition(targetPos) //targetPos is predefined before being called that more or less do this: (using runToNewPosition()) I then parse incoming serial data, and call functions. Serial.println(stepper.targetPosition()) //should display 0 tMaxSpeed(3800) //max value 1/2 steps before getting noise on long runs/movement short span/lengths never made noises? set initial max speed (is this for acceleration style movement?) here is my current code, that seems to work without issues: Once homing is done and new position 0 is set: tCurrentPosition(0) //neded in end? (not when limit switch start-up?) ** do homing routine first instead of below ** micro stepping set-up (low/high/low for 1/2 stepping) Here is some snippets from my code (not full project as waaay too long) ```ĪccelStepper stepper(1, 3, 2) //stepper(driver, step, dir) ** I would need to use/get an I/O expander as I am almost out of pins (A4/A5 are my only open pins really).was thinking about getting one anyways. To use it you will need a stepper motor, and the appropriate hardware to control it. not sure what the first/fast sensor would be? (hall sensor?) that then slows it down to the 1-step increment approach? This library allows you to control unipolar or bipolar stepper motors. and also was very loud and ugly sounding when doing a 1 step movement approach) and there are ways to make the homing faster? while still checking the limit switch?. My first hope would be to get a better homing loop/routine added into my current existing code. So I am here to get some community feedback from everyone! so if I had to use this approach, it would take forever to complete a homing process. My stepper/plate travels roughly 40+ inches in "x-axis". Maybe its just me? and this is the only approach?īut after googling many example. I can NOT seem to get anything to work that is acceptable. We will cover how to control a NEMA17 stepper motor in combination with a A4988, a DRV8825 and a TMC2208 stepper driver. I then realized I needed to add a limit switch to do some 'homing' to set my initial '0' position each time my project boots. 4 Comments Arduino Tutorials In this tutorial we will learn everything we need to know about controlling stepper motors with Arduino. So after going from 1/32 micro stepping to finally down to 1/2 stepping and adjusting my speed/acceleration values. (but never reach to the correct position) it would get loud, and 'konk out' and and make noise. because short range movement was fine, but anything over maybe 8 inches. (I think I was using too high values for the setmaxSpeed and setAcceleration functions. things are very linear so blocking code is a non-issue for the first time!)Īfter getting my project to a point I am very happy with. but its also VERY easy code wise, (while I never, ever use delay() is my projects. This is a big project, (Arduino, RPi, Lamp, stepper, servo, relays, solenoids.etc). However after some trial and error I managed to get some stepper motor movement, noticed it was not using accel/decel, and updated to do so. and how to properly envoke, set and use each one) (Kind of confusing documentation with so many methods, some blocking, some not. Now you are ready to embark on an exciting journey of controlling stepper motors using the powerful TB6600 driver in conjunction with your Arduino.New to using stepper motors, and am revisiting an older project that was using AccelStepper library. In the 4.5A type, the driver step first becomes 1/8 and then stops because it doesn’t have a 1/32 step.īy following these steps and understanding the code, you’ll be able to effectively interface the TB6600 stepper motor driver with your Arduino and harness its full potential. Finally, by increasing the step, the motor speed decreases and its resolution increases. By doing this, the driver step in 4A type, first becomes 1/8 and then 1/32. For example, first we set pin S1 and then S2 to off. Next, we want to change the step manually by the driver switches. The motor then rotates by creating a square pulse with the step pin. The rotation direction of the stepper motor is clockwise in 4A type and counter-clockwise in 4.5A type. Connect pin 8 to DIR (CW) and pin 9 to PUL (CLK).
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