The GoPiGo3 Beginner Starter kit ($199) comes with a RPi3 which has built-in WiFi. Why does the kit come with a WiFi Dongle?
I asked that myself…
The answer is their operating system cinch and DexterOS. They both create a WiFi hotspot and they for some reason decided to use a WiFi dongle to do that.
But why can’t it just use the built in WiFi???
I don’t know.
@graykevinb has it correct: the new operating system DexterOS creates a pairing WiFi hotspot for an easy connection. The wifi dongle works better than the Pi3 wifi for this. So we ship it with the Beginner starter kit.
DexterOS also works with the onboard Pi wifi, so if you want to order it ala carte, you’re welcome to take the dongle out! Be forewarned you may not have as solid of a connection with the Pi3 built in wifi though.