SparkFun will be closed Nov 26th and 27th for the Thanksgiving holiday. Orders placed after 2:00pm MT on the 25th will ship out Monday the 30th.


Member Since: January 12, 2011

Country: United States

  • What kind of speed can one expect from this chip? I am using an Applied Motion HT17-075 nema17 motor and have everything setp-up for real smooth and quiet operation but anything above 900 steps/s generates noise, vibration and loss of torque.

    The same steppers, when driven with other drives can go really faster.

    I am using the 128 micro-step mode (have stried even full-step with no difference) and am driving the whole thing with 24v. Form the motor specs and measurements I have the following data: phase current 0.85A phase resistance 6.6 ohms phase inductance 12mH measured Ke 0.0475 V/Hz

    Can anyone spin their motors faster? what kind of settings are you using?


  • Saw it! Thank you VERY much! A real soldering station is on the way at last!

  • Can we know in advance whether the order qualifies or not? Maybe in the checkout section?

  • For people looking for Windows 7 64bits driver, I recommend looking at the following (and oddly similar!) scopes:

    lecroy waveace 112 BK Precision Model 2532B (I’m currently using this one)

    Need to stock to the EasyScope supplied by Atten though.

No public wish lists :(