HAKRC F722 Flight Control Integrated 5V 9V Dual BEC Built-in OSD Controller 3-9S for RC Racer Drone FPV Quadcopter DIY Aircraft

Instructions for use (must read):There are many built-in flight control functions, and the components are very dense. When installing, please do not use tools (such as pliers or nose sleeves) to screw the nut, which is easy to scratch the tower hardware and cause unnecessary loss.
The correct way is to tighten the nut with your fingers and the screwdriver can quickly tighten the screw at the bottom (remember not to be too tight, so as not to damage the pcb).
Do not install the propeller when installing and debugging flight control. Try not to fly inside the house to avoid a safety accident.
Before installing the propeller test, check again that the engine is turning and the propeller is in the correct direction.
Safety tip: don't fly near the crowd. The company is not responsible for any loss caused by the aircraft accident.
Do not use non- aluminum or nylon columns to avoid damage to flight control equipment. The official standard is a nylon column made to measure for the fly tower.
Before the power is on, check that the installation between the towers is correct (must be arranged with the pins or cables aligned), check that the positive and negative poles of the welding are correct and check that the motor screws are against the stator motor to avoid short circuit.
Checking the tower's electronic components to weld out can result in a short circuit.
If the short circuit occurs when soldering the installation, the buyer is solely responsible.
F722 flight control specifications:
Processor: STM32F722RGT6
Gyro: MPU6000
B ec: 5 v / 2a; 9 v / 1.5a
Memory: 16 MB
Input voltage: 3-9 s
Firmware: betaflight_3.5.5_HAKRCF722
Uart serial port: 5
Colour:Black
Material:Composite material
Package Contents:
1 * F722 flight control motherboard
4 * shock absorbing ring
1* 8p soft silicone cable
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1