For RC toys lover: the knowledge you need to know about your controller

The importance of a good controller

Model toys can be divided into static and dynamic. The static model toy is basically scaled down pursuing the similar imitation of the original one. The dynamic model toy is mainly pursuing the movement, supplemented by simulation. RC is actually the abbreviation of “Radio control”, in fact, it can also be understood as "Remote control". So the soul of the remote control model is the remote controller.

The main components of the electronic parts

1.The transmitter, that is, what we call the remote controller. And you can use the RP SMA adapter to connect your transmitter with antenna.

2.The receiver, which is essentially a whole together with the transmitter, receiving signals from the transmitter and then commands the other electronic devices, such as the steering gear.

3.The steering gear, mainly to receive the incoming signal into mechanical action to change direction or adjust the movement.

4.Electronic governor, generally, the motor speed is not constant, so we need to use the electronic governor to adjust its speed.

5.The gyroscope, flight control, this part is also installed above the receiver mostly used for helicopters and aircraft.

In this case, we can draw a conclusion that to purchase or refit a remote controller, you need reliable transmitter and receiver. The Corona receiver is compatible with FHSS transmitter and very simple to pair with the transmitter so that your RC car will be so much easier to drive.Well, since you have got a nice receiver, it’s also important that you keep updating your transmitter. The FlySky data cable USB download line is specific for FS-i6, FS-T6, FS-T4B, FS-CT6B and other transmitters connecting with computers to update the firmware.

Remote signal transmission mode

In general, the remote control signal transmission modes will be divided into three - "infrared", "FM or AM radio" and "2.4G".

1.The shortcomings of infrared remote control are obvious. First, remote control distance is short. Second, influenced strongly by the external factors, if it’s daytime outdoor environment to play, then it’s very difficult to control. Third, the need for strict direction control, that is, remote control transmitter must directly point to the object.

2.FM, AM radio remote control has the advantage of all-around non-direction and the remote control distance is very far. If the remote control plus frequency converter, you can control for few kilometers away, so many FPV or aerial photography players will choose radio control. But the shortcomings also exist. Before the flight, players must ask the other players in the same field about the frequency they use, if they all use the same frequency, it will cause the risk of out of control.

3.But if you use the 2.4G control then you don’t need to worry about this problem, so more and more new RC will choose this way. However, 2.4G is also not perfect completely as its signal will also be affected.

Eachine Aurora 90 preview

Why a simple preview of the Aurora 90? It is a complex multirotor, equipped with brushless motors, which requires time to be tested in depth. Many of you were asking me if the device was worth it. I opted for a preview, sufficient to get a good idea of the qualities and defects of the machine. Note that the device was given to us by the Banggood shop. As usual, tell us if you think the practice has influenced our judgment.

Tour of the owner

The Aurora 90 looks like a Tiny Whoop, with quadruple propellers and duct-like propeller shields. But it is more imposing: as the name suggests, it measures 9 cm diagonally of motor motor, and is inscribed in a square of 11,8 x 11,8 cm. It measures 7.5 cm in height without its battery. For comparison, a Tiny Whoop is 6.5 cm diagonal and 8.3 cm side. The weight is quite high: 74.5 grams without the battery, which adds 31.87 grams, for a total flight order of 106, 37 grams. The engines are 1104 to 7500KV. The propellers are 5.1 cm models, or 2 inches, secured with 2 screws. Our previous experience with a nano brushless, the Eachine's X73S, had not been conclusive. The Aurora 90 inspires a lot more confidence, with a carbon structure 2 mm thick that looks quite solid, protective carbon propellers, and a central pod that holds and protects the combo camera and video transmitter 5.8 GHz . Inside the aircraft, there is a Betaflight 3.1 flashed flight controller, a 2.4 GHz radio receiver and a 4x10A EOS 4 in 1 compatible Oneshot42, Oneshot125, Multishot and DShot600 compatible BLheli_S. At the back is a bar of 4 LEDs. It has everything of a great!

Connection under Betaflight

The version I tested is equipped with a Flysky radio receiver. To pair the Aurora 90 with an FS-i6, the procedure is conventional and fast, via the AFHDS 2A protocol. Good news: this means that this multi-rotor Flysky version is compatible with more high-end radio controls than the FS-i6. To connect it to a desktop computer with Chrome Betaflight Configurator, simply plug in a microUSB cable. But we soon realize that it is not going to be as simple as expected. The microUSB connector is present on the outside of the flight controller, but its access is totally blocked by the propeller shields! What has to be done ? Unscrew at least 2 screws of the front-left protection ... What is not simple: the threads are in the axis of the propellers, and therefore difficult to access even with a long and thin screwdriver.

Connection under Betaflight, continued

The flight controller of the Aurora 90 responds well under Betaflight. No worries to match the channels to the joysticks, to configure two switches to arm the motors and choose the modes. But unless armed with the joystick, it lacks a channel on the FS-i6 to trigger the buzzer. Because yes, there is a buzzer on board, and it is very appreciable. Direction the OSD tab: you can choose what you want to see on the screen during the flight. Battery voltage, artificial horizon, center cross, flight time, flight mode, pilot name, etc. Friendly! Note that the driver name changes on the Configuration tab. Not all values ​​are available. No GPS, of course, nor altitude without adequate sensors. Also not displaying the video channel ...

Ignition…

The battery supplied with the Aurora 90 is a Lipo 2S 7.4V 450 mAh and a discharge rate of 80C, with a red JST plug. One can doubt the reality of 80C, especially with this hold. The battery is fixed under the device, with a small Velcro. Not really practical, she tends to save herself. As soon as the connection is made, the bar lights up, with high brightness. Friendly! It is plugged in with a small connector, and therefore easy to disconnect. First take-off: the Aurora 90 is quite noisy, but it is very nervous, even in Angle (stabilized) mode. Indoors, pushing the gas has every chance to stick the machine to the ceiling! It will be necessary to play on the spleens to calm the beast if you want to practice the precision flights in indoor.

Additionally, if you happen need to purchase some rc drone parts, you can search via Banggood website, which is one of the wholesale platform to provide affordable prices, such as fs gt3b, flysky transmitter and receiver, etc.