It is that time again! SparkFun Electronics will be closed Friday, January 13th for our annual inventory day. Please keep in mind that any orders placed after 2PM (Mountain Time) on Thursday, January 12th will not ship or be prepared for local pickup until we open for normal operations on Monday, January 16th. In addition, tours will resume on Friday, January 20th. Thank you for your patience!

Member #342800

Member Since: August 2, 2012

Country: United States

  • I recently ordered an Easy driver (ROB-10267) which I am using to drive a stepper motor. It ran fine at first, but then it began to not change direction. In trouble shooting I found the DIR input was being pulled down to 2.6 volts (rather than 5 volts). If I remove the wire from the DIR input it has 5 volts on it. If I put a separate 5 volts to the DIR input it will run in the opposite direction and then run correctly for a while. Any suggestions on why this is happening?

No public wish lists :(