Just a quick question. So the ground and positive pins on a digital port supply voltage/current directly from the battery/power supply connected to the EZ-B. So I'm wondering (to save on number of ports used), how many regulators can I safely run, in paralelle, off one port (single ground and positive pin)? I'm assuming running off three or four wouldn't be an issue as it would be the same as running them directly off the battery, or am I missing something?
Upgrade to ARC Pro
Harnessing the power of ARC Pro, your robot can be more than just a simple automated machine.
Current is your issue, not the number of voltage regulators. You cannot exceed a total of 5 amps through each digital port. You need to add up how much each device is drawing and keep the load under 5 amps.
Here is the EZBV4 spec sheet