The Pi3b ran with around half an amp (but could draw more if it is running other devices). Does this Pi really draw about 3 amps or more? Or is that just what it needs for the devices? That could be a big drawback for imaging in the field.
they won’t draw power with nothing plugged into them...that is t how it works, but I use a 12v to 5v 4 amp converter so no worries here, mind you I have monitored my rpi3b+ with all ports used and it’s never drawn more than 1.5 amps, but I have all power Hungary devices plugged into a powered hub, namely my Pegasus UPB..
With my SX USB 2.0 CCD Cameras I have no use for USB 3.0, ATM anyway..
Very, VERY interested in learning if and how well Stellarmate OS and Kstars/Ekos runs with the new PI 4. This is exactly the upgrade I've been waiting for - REALLY hope SM OS plays well with it. Also would be HUGE if we could now run Ekos smoothly on the PI instead of remotely - man would that be great!
Looks like all the US distributors are out of stock on the 4GB version for at least a month. That being said, the RPi3 only had 1GB of RAM and still ran Ekos. The 2GB version should be sufficient for Stellarmate...