Thanks for the reply, so I want to make my own board but I have limited knowledge at designing the circuit but in rest I can handle it so if u have or know an circuit pls help. Also I'm reading as much of this forum as I can but if u have links to good and simple tutorials it will help me much.
Another problem I have I made 2 driver boards for bipolar steppers one using Tea3718 and one using L6219 but they don't work. I used the circuit provided in the datasheet of these drivers. The problem seems to be that it provides very little current, at 12V it hardly lights up an LED. I used for control an AVR microcontroller kit and I'm sure that the commands are good. |