I am running 2 stepper motors http://arduino.cc/en/Reference/StepperBipolarCircuit 4 pin circuit. I need to run run both of them together. How can I do it easily.
So far I made a small for loop, that steps each motor ones per loop and it loops the amount of steps I need. This works, but I would like to have something better.
Also, is there an easy way to release the motors, I reset the pins to LOW to do so, but is there a better way. And I would prefer to not have enable wired in.
Dumb suggestion (not knowing your configuration) - wire both steppers to the same control pins?
I need to have both steppers separate at some point. so cannot do that.
So you want to control two steppers with one H-bridge?
You could use a solid-state DPDT relay to switch between motors? Probably too slow though.
As for 'releasing' the motors, the datasheet for H-bridge show the ENABLE pins, hard-wired in the circuit to V1 and V2. If you could instead control the ENABLE signal with an Arduino pin instead the outputs switch to high impedance and the output to the motor windings shut off.