/products/roadtest/b/blog/posts/stepper-motor-driver-kit-motor---the-hello-world-of-motor-testingBefore committing to my tests I thought I&#39;d make sure I could make the motor turn. I wired up the motor and trio of boards. The screws were quite small so I had to use a jewellers driver. I connected up the power supply, set it to 9v with a 0.5A limien-USTelligent Community 12https://community.element14.com/products/roadtest/b/blog/posts/stepper-motor-driver-kit-motor---the-hello-world-of-motor-testingMon, 26 Aug 2019 19:31:16 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:947ab15d-67ca-450c-923a-32f5d083d39fWorkshopshed0<p>There is an interesting comment at the end of chapter 13 on stalling.</p><p>&nbsp;</p><blockquote class="jive-quote"><p><span style="text-align:right;">&quot;Very high motor velocities, in which the full sinusoidal current is not driven into the motor coils also leads to poor response. These velocities are typically characterized by the motor back EMF reaching the supply voltage.&quot;</span></p></blockquote><p>This could be what was happening in my testing.</p><img src="https://community.element14.com/aggbug?PostID=7337&AppID=14&AppType=Weblog&ContentType=0" width="1" height="1">