[IMG_3793] [IMG_3791] For learning and entertainment. Look at the pins on the extension board and the A4998 for the steppermotor. It does not match. (extension board) B1=A2 (on the A4498) and (extension board) A2=B1 (on the A4498).

[image] ruilviana: This is not A4498. this is 8825. Pin outs should be the same according to LastMiniuteEngineers with the confounding of the A/B 1/2 mentioned by @jim-p https://lastminuteengineers.com/a4988-stepper-motor-driver-arduino-tutorial/ https://lastminuteengineers.com/drv8825-step…

A4498 extension board

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Railroader February 29, 2024, 5:47pm 2

How do You come to this conclusion? Comparing the white 4 pole connector with what?
Have You checked the internal board conductors?

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A4498 extension board

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