Arduino shield

After a couple of goes, I have managed to turn the simple breadboard stepper driver into a simple Arduino shield.

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Parts list

• 8 Pin 0.1 90-degree Locking Header [HM3428] 0.61AUD
• 28 Pin Header Terminal Strip [HM3211] 0.55AUD
• Stepping Motor 12V [YM2751] 18.95AUD
• PC Boards Vero Type Strip [HP9542] 5.25AUD
• ULN2003 Darlington transistor array IC [ZK8855] 3.50AUD

Modifications

• Rewired push connector on the motor. It was just too hard to get enough digital outs in sequence to line up on the PCB. So I had to move all the pins on the motor so that they were adjacent to one another, six in all. See fig 1. and fig 2.

• Default     Modified

  Grey        Grey
  Green       Green
  Red         Red
  [Empty]     Brown
  Yellow      Yellow
  [Empty]     Blue
  Brown       [Empty]
  Blue        [Empty]

Circuit diagramme

To come. See figure 3.

Fig. 3.

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