Time to try something a little different! This awesome firmware is called dRonin. The awesome people over at the RCExplorer.se/forums have made a custom version with all the tricopter addon wizardry we call Triflight.
The setup is straightforward and autotune makes PID tuning a lot simpler. I hope you will enjoy how your tricopter will fly with this firmware.
Check out the official dRonin site (remember that we use a custom version): https://dronin.org
RCExplorer.se - Exploring the RC world, one crash at a time.