Arduino Motor H Bridge. 4 x 1 2k ohm 1 4w resistors. 1 x 2 position 3 5 mm terminal block.
Enables pwm signal for motor b please see the arduino sketch considerations section specifications. Whether a stepper is unipolar or bipolar you can control it with an h bridge. 4 x 2n2222 transistors.
Double h bridge drive chip.
1 x medium perfboard. Some h bridges like the l293d also provide additional pins for more convenient speed control. 4 x 1 2k ohm 1 4w resistors. This tutorial will show you how to use it.
