pulse generation

@radiationalert1 require alignment equipment including "A pulse generator capable of producing the following pulses, 100usec, Negative going, 5VDC, 4.49hz" among others. Finishing up the "Monitor 4" kit and unclear what "negative going" pulse looks like. Attached scope of an Arduino 100usec...

Hey everyone! A rookie here. I want to create a system that allows manual controlling of a stepper motor + drive to move a machine mounted on a leadscrew that moves linearly. Basically move the machine back and forth using switches. So far I have found the specs for the stepper motor and the...