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October 20, 2010
about 9 years ago
I meant... "Dir and Step" are connected to pins on the Arduino. Sorry for the typo!
I bought 3 of these and got 3 matching easy drivers v4.3 <br />
I measured the wires and got 34.5 ohms on the following pairs of wires:(red, green) (blue, yellow) ...any other combination yields 0 ohms.<br />
I connected one pair to [A] and the other to [B] on easy driver. (Gnd, Stepper, Dir) on the easy driver gnd and stepper are connected to digital pins on an Arduino Uno (gnd is not connected to anything).<br />
The power source a power supply that reads 9VDC @ 800ma (even though when i measure the voltage it reads 13.2 Volts). <br />
When I power everything up and send it pulses to step it does step and it changes direction. The problem is that it jitters way too much and is very noisy and it doesnt stay in one position. <br />
I connected MS1 and MS2 to the Ground and Positive pins of the power connector using a 10K ohms resistor in an attempt to disable or enable Micro Stepping, and that had no effect. Playing with the current regulating Potentiometer on the easy driver didnt help either.<br />
What am I doing wrong? <br />
Thanks for your help!
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