Purpose: Rotate a 4 wire bipolar stepper motor (32.6 ohm) & activate a solenoid (13.3 Ohm) at different times. Using H-bridge ( LN298 4A) for the stepper & N-Mostfet (tp120) for solenoid. INPUT I have burnt multiple 1A H-bridges when using the same power source for all (19V 4.74A). So, I use a 1…

Solenoid & Stepper Motor power problem. PROTECT ME!

holmes4 November 28, 2012, 11:15pm 2

First Why have you got the 5v output of the uno going to your breadboard?

Second Why do you (think have two Earth's on the upper (in the pic) rails of the breadboard?

Third How are you powering the uno?

Mark

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