Review on 🛩️ USAQ Mini PIX F4 Flight Controller with M8N GPS, Voltage Module, 915mHz Telemetry, Buzzer, and LED by Doris Allen

Labeled as a Pixhawk but uses entirely unique proprietary connectors and does not retain the exact same form factor of the real Pixhawk at mini . The ports are really annoying because you can't connect anything to them unless you buy a specific brand of Radiolink. I had another GPS and telemetry set but I couldn't connect them in any way. As for the form factor, it doesn't even quite match the included switch panel. The holes on the controller are smaller than the holes on the board, and the form factor is a standard mini. So the standard bolts/screws will not fit through the holes. Then continue with the firmware. They also use proprietary firmware and you can't easily update them when new Pixhawk firmware versions come out. They'll have to wait for Radiolink to release their own updated version, which it seems they're doing very slowly. Luckily they updated the firmware to work with standard mission planning software. Initially, he only communicated with their custom version of the mission planning software. However, it is very annoying that every time I launch the mission planner it tells me that my firmware is out of date and there is nothing I can do about it. It's also annoying to miss out on improvements and bug fixes in newer firmware versions when Radiolink decides to bother updating their version. If you bypass all of this, once everything is assembled and on a multicopter, performance will be mediocre. in the best case. It reads altitude at 400 feet in a second and the next 420 feet (when not moving). I'm not sure if these readings are from a barometer or GPS. It does a good job of altitude holding, so I'm assuming it's GPS altitude reading and the altitude hold function uses a barometer. However, this makes it almost impossible to do autonomous missions, because if you tell it to fly 20 relative feet, it can fly 5 or 40, you don't know. up to about 6-10 feet, and so holding the position will fluctuate over a wide range from time to time. The only saving grace I can give this controller is that it seems to stabilize pretty well. Even in wind speeds of 24-32 km/h, it is able to maintain stability while hovering. But still, do yourself a favor and skip this controller. Spend a little more for a real official 3DR Pixhawk Mini or something. I'm really sorry I didn't have it at the moment and it took me so long to build my quad that my comeback period is already over so I'm stuck at this mediocre FC for now.