Stepper motor wiring help(and a few other small questions from an instructable)

Question

This instructable really interested me, Frameless Laser Harp - 4 , but i've never worked with steppers before. the stepper i got has 4 wires, but the stepper in the instructable has 6. on page 2 there is a wiring guide, but that wasn't very helpful to me, i didn't really understand what i'm supposed to do with the wires. This is the stepper i have, https://www.sparkfun.com/products/10551?gclid=Cj0KEQiApruyBRCFqoDu1pbk9rkBEiQAF8EFdVmEBorGt6koPmFkaibEpRmZ94Z6r8BWhmTqAL… . Any ideas?

Robert Peter Oakes · Answer

reverse... to change direction lol now more seriously... then you wire up the stepper motor, if it is not going in the direction you expect for the command your giving then you can change the code or simply reverse two wires as I indicated and keep the code correct. noting more complex than that regarding using your steppper vs the one on the instructable, you cant. or at least not in two diections. what you need to have is an HBridge controller. the stepper in the instructable is working only part of the abilities in order to keep the crcuit relativly simple, (T1, 2, 3, 4 are in the ULN2003) this is what instructables is doing what you need is this

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a rather entertaining video to say the least but it does have the info, using a SN754410NE SN754410NE from TI and here is the data sheet with more wonderful info http://www.ti.com/lit/ds/symlink/sn754410.pdf Oh, the software should not know the difference (I think) as it uses the same pins out of the arduino hope it helps

Stepper motor wiring help(and a few other small questions from an instructable)

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