Stepper motor with A4988 makes sometimes -2 steps at startup, depending on the order of parts in diagram.json

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Stepper motor with A4988 makes sometimes -2 steps at startup, depending on the order of parts in diagram.json #801

Closed Koepel closed 3 months ago

Koepel commented 3 months ago

Only a A4988 and a stepper motor are needed. The four wires to the stepper motor must be connected and the SLEEP must be connected to RESET.

When the A4988 is before the stepper motor in diagram.json, then the stepper motor stays at 0 steps when the simulation is started. When the stepper motor is first, then the motor makes -2 steps.

0 steps: https://wokwi.com/projects/400378484824646657 -2 steps: https://wokwi.com/projects/400378469835249665

urish commented 3 months ago

Good catch!

urish commented 3 months ago

Pushed a fix - can you please test again?

Koepel commented 3 months ago

Everything is okay.

Tested with Firefox and Chromium and a very long and slow diagram.json file with the A4988 at the end. No problem.

urish commented 3 months ago

Thanks for testing and reporting back!