I have a Huzzah Feather ESP8266 (pinout) and due to the requirements of my project, I need to supply it with a 9V power adapter with a barrel connector, such as this one. I'm REALLY new to all of this, so I am trying to figure out how to do this and understand reading dev board specs.
It looks like this development board has a regulator that will adjust a power source down to the appropriate voltage... but how do I know what parameters it allows?
If I'm understanding correctly, on the pinout sheet above it looks like I would connect a power supply to the "VBUS" and "GND" (right?) pins. It also says "500mA Max", so does that mean a 1A power supply won't work? Also, why wouldn't it specify a maximum voltage?
If just connecting a barrel connector to those pins will not work, what am I missing that would get me there?