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accelstepper

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Мини ТПА, Jim Larson8

12/26/25

0.3 degree offset at 1030 steps... (esp32)

I found a library for ESP32 based on AccelStepper... FastAccelStepper.h. It works flawlessly, and

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0.3 degree offset at 1030 steps... (esp32)

I found a library for ESP32 based on AccelStepper... FastAccelStepper.h. It works flawlessly, and

12/26/25

Ross Waddell, … gjgsm...@gmail.com8

11/25/25

Issues with ATMega32PB?

So, I think the real issue here was a damaged current limiting pot on the TMC2208 SilentStepStick -

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Issues with ATMega32PB?

So, I think the real issue here was a damaged current limiting pot on the TMC2208 SilentStepStick -

11/25/25

11/20/25

$199, JAMES IS COMING FOR DUCT/VENT CLEANING

Anyone interested? On Mon, Nov 17, 2025 at 11:57 PM Chris Tiffany <christi...@gmail.com>

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$199, JAMES IS COMING FOR DUCT/VENT CLEANING

Anyone interested? On Mon, Nov 17, 2025 at 11:57 PM Chris Tiffany <christi...@gmail.com>

11/20/25

Eren Palabiyik, … John Tillson6

11/16/25

Only Clockwise Direction Overshoot/Slipping Problem

I have found out that its caused by lack of setup time between dir and step. I fixed by setting

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Only Clockwise Direction Overshoot/Slipping Problem

I have found out that its caused by lack of setup time between dir and step. I fixed by setting

11/16/25

Robert Cole, … gjgsm...@gmail.com14

10/16/25

Maintain linear speed of stepper motor

Ok but, it might take a day or two, time is limited. Post here or email me the code that measures the

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Maintain linear speed of stepper motor

Ok but, it might take a day or two, time is limited. Post here or email me the code that measures the

10/16/25

Adrian Brown, … Jim Larson21

9/9/25

Running steppers multiple times

Case 1 is correct. Case 2 is also correct. Either works, pick your favorite! Don't worry about

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Running steppers multiple times

Case 1 is correct. Case 2 is also correct. Either works, pick your favorite! Don't worry about

9/9/25

Michaël Bruneau, … Jim Larson3

7/29/25

Cannot decelerate by lowering setMaxSpeed

Here is one way to do the requested action. Please note that I have provided code that uses speeds

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Cannot decelerate by lowering setMaxSpeed

Here is one way to do the requested action. Please note that I have provided code that uses speeds

7/29/25

Wltr, … Brian Baidal6

7/10/25

Direct Drive 4 Wire negative direction

Actually setting a positive or negative speed for each specific movement is the first idea that came

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Direct Drive 4 Wire negative direction

Actually setting a positive or negative speed for each specific movement is the first idea that came

7/10/25

Declan C, Jim Larson6

6/23/25

Move after initial stop

Normally, I would try this out on my own set up and see what's wrong. Unfortunately, I'm

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Move after initial stop

Normally, I would try this out on my own set up and see what's wrong. Unfortunately, I'm

6/23/25

Ross Waddell, … gjgsm...@gmail.com4

6/15/25

AccelStepper running at 20Mhz?

(Re-posted to correct small compile issue) Jim, This worked for me when I needed it but I haven't

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AccelStepper running at 20Mhz?

(Re-posted to correct small compile issue) Jim, This worked for me when I needed it but I haven't

6/15/25

John Sheets, … gjgsm...@gmail.com5

6/13/25

Using AccelStepper with ESP32C6 SOC (Seeed)

Thanks all. The board isn't crashing. I'm following up on some other theories (from the Seeed

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Using AccelStepper with ESP32C6 SOC (Seeed)

Thanks all. The board isn't crashing. I'm following up on some other theories (from the Seeed

6/13/25

Vincent Serantoni, Jim Larson6

6/10/25

Motor speed jumps higher before decelerating

Glad it's working for you! Be careful using your variable count like you are. 0.9 * 100000 is

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Motor speed jumps higher before decelerating

Glad it's working for you! Be careful using your variable count like you are. 0.9 * 100000 is

6/10/25

Adam Hendrych, … gjgsm...@gmail.com13

6/7/25

Extreme NEMA 17 noise both idle and movement

Yes, the busy loop would account for your problems. Typically the loop which is running the stepping

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Extreme NEMA 17 noise both idle and movement

Yes, the busy loop would account for your problems. Typically the loop which is running the stepping

6/7/25

Guy Jaminon, Jim Larson4

5/29/25

6400 steps per revolution for Nema17 and TMC2208. Is it normal?

Thank's Jim, you're absolutely right ! With the right declaration (DRIVER), the number of

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6400 steps per revolution for Nema17 and TMC2208. Is it normal?

Thank's Jim, you're absolutely right ! With the right declaration (DRIVER), the number of

5/29/25

veronica, … Ross Waddell12

5/14/25

Uniformly accelerated rectilinear motion with non-zero initial velocity

Thanks very much jim! On Wed, May 14, 2025 at 6:08 PM Jim Larson <jla...@pacifier.com> wrote:

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Uniformly accelerated rectilinear motion with non-zero initial velocity

Thanks very much jim! On Wed, May 14, 2025 at 6:08 PM Jim Larson <jla...@pacifier.com> wrote:

5/14/25

Andrew Hunter, Geoff Smith2

5/1/25

Accelstepper not working on GIGA?

Exactly. Like faster mcus such as the ESP32 sometimes controlling the pulse width is required using

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Accelstepper not working on GIGA?

Exactly. Like faster mcus such as the ESP32 sometimes controlling the pulse width is required using

5/1/25

Butch Alline, … gjgsm...@gmail.com4

4/30/25

Help needed controlling three stepper motors

No problem Butch, glad I could help. BTW, if you are wanting more examples, the the place to look is

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Help needed controlling three stepper motors

No problem Butch, glad I could help. BTW, if you are wanting more examples, the the place to look is

4/30/25

Jonathan Newbrough, Geoff Smith4

4/21/25

faster way to setAcceleration

Thanks Jonathan, look forward to hearing more about it. On Mon, 21 Apr 2025 at 12:21, Jonathan

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faster way to setAcceleration

Thanks Jonathan, look forward to hearing more about it. On Mon, 21 Apr 2025 at 12:21, Jonathan

4/21/25

Doug Hanson, gjgsm...@gmail.com2

3/27/25

Max Value for position?

AccelStepper itself is not limited to ±32767 steps. It uses 32-bit signed longs for positions (±

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Max Value for position?

AccelStepper itself is not limited to ±32767 steps. It uses 32-bit signed longs for positions (±

3/27/25

Michael Gentry, … Jim Larson3

3/27/25

Trouble Running Stepper at High Speeds

Hello Michael - First, I do not have one of these controllers to experiment with, so I can't

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Trouble Running Stepper at High Speeds

Hello Michael - First, I do not have one of these controllers to experiment with, so I can't

3/27/25

ACME Corp, … gjgsm...@gmail.com5

3/7/25

Help with proper use of ENA or enable pin

Below is an explanation of the various MotorInterface types and an 'enable' pin, including

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Help with proper use of ENA or enable pin

Below is an explanation of the various MotorInterface types and an 'enable' pin, including

3/7/25

Theodoros Karagiannis, … gjgsm...@gmail.com4

2/14/25

Assistance required for Accelstepper library and arduino cloud

I also have no experience with Arduino Cloud and I agree with Jim's comments. This is a common

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Assistance required for Accelstepper library and arduino cloud

I also have no experience with Arduino Cloud and I agree with Jim's comments. This is a common

2/14/25

chris Fearnley, … Mike McCauley6

1/4/25

How to detect completion of deceleration?

This suggestion from @gregor works well: motor->stop(); while (motor->run()) // let

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How to detect completion of deceleration?

This suggestion from @gregor works well: motor->stop(); while (motor->run()) // let

1/4/25

Aymen FODDA, … Jim Larson9

12/21/24

Stepper motor 200 step 1.8 deg + Ramp 1.4 + Arduino Mega

Try adjusting the drive current. With the motor being stepped continually, slowly adjust the current

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Stepper motor 200 step 1.8 deg + Ramp 1.4 + Arduino Mega

Try adjusting the drive current. With the motor being stepped continually, slowly adjust the current

12/21/24

Ross Waddell, … xy...@blueyonder.co.uk6

10/15/24

How to calibrate stepper

https://www.jst.co.uk/downloads/series/eSH_(21-03-24).pdf this is the specification page for the

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How to calibrate stepper

https://www.jst.co.uk/downloads/series/eSH_(21-03-24).pdf this is the specification page for the

10/15/24

Grezzianastro, … Mike McCauley5

10/12/24

Run and RunSpeed speed limit cap

On Saturday, 12 October 2024 16:20:57 AEST Grezzianastro wrote: > Hello, is it possible that Run

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Run and RunSpeed speed limit cap

On Saturday, 12 October 2024 16:20:57 AEST Grezzianastro wrote: > Hello, is it possible that Run

10/12/24

Ross Waddell, … Jim Larson5

10/12/24

How to choose best gear ratio for desired RPM

That's plenty of help, thanks Jim! On Oct 11, 2024, at 11:58 PM, Jim Larson <jlarson@pacifier.

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How to choose best gear ratio for desired RPM

That's plenty of help, thanks Jim! On Oct 11, 2024, at 11:58 PM, Jim Larson <jlarson@pacifier.

10/12/24

9/30/24

[accelstepper] Digest for accelstepper@googlegroups.com - 1 update in 1 topic

Basically that can work (I have it working). It depends on the speed demanded and the micro-steps

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[accelstepper] Digest for accelstepper@googlegroups.com - 1 update in 1 topic

Basically that can work (I have it working). It depends on the speed demanded and the micro-steps

9/30/24

Ross Waddell, Jim Larson3

9/30/24

Calculating setSpeed() for desired RPM

Definitely helps - thanks Jim! I quoted 0.62 stepper angle for the 30deg gear reduction ratio based

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Calculating setSpeed() for desired RPM

Definitely helps - thanks Jim! I quoted 0.62 stepper angle for the 30deg gear reduction ratio based

9/30/24

9/29/24

6 simultaneous stepper motors

Hi all, Apologies if this is a rather simple/obvious question. I'm looking for a library to

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6 simultaneous stepper motors

Hi all, Apologies if this is a rather simple/obvious question. I'm looking for a library to

9/29/24

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