[itgoon]

I've known about ArduPilot for a long time, never even heard of HoverflyOpen. The only reference I found for HoverflyOpen is this: https://www.parallax.com/product/31500

Comparing that to the ArduBee isn't really much of a comparison. The only advantage I see is that HoverflyOpen currently exists, while ArduBee looks like they are still in the preparing-to-Kickstart phase.

If there's more out there for HoverflyOpen, please share it. I'll admit I didn't dig around much.

ArduPilot is a well-known and battle-tested platform.

[spiritplumber]

That's really it: you can grab all the code and schems from there. There was a community but it shut down when the FAA regs about drones >250grams came out.

[luminousbees]

We are trying to shape ArduBee as an excellent platform for 100g-200g micro uav develop and to enable urban swarm experimentations, indoor and outdoor!