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. 

Hoverbot Nano Review

In the series of small brushless nano multirotors, here is the Hoverbot Nano. It is a 9 cm diagonal model, motor-driven, in X, and equipped with protections of propellers to facilitate the flights inside. The structure is made of carbon of 2 mmm, a weight of 5.6 grams without protections, 11.7 grams with. Hoverbot offers a lifetime warranty on all carbon parts. Nice, even if the costs of shipping from the United States to France temper a little the interest of the approach. This frame is sold for $ 45 at Hoverbot (without postage, without taxes). It comes with carbon parts, screws, rubber bands, a non-slip pad and a JST connector for power supply. If you need to print a video combo support, Hoverbot offers a 3D model on Thingiverse.

The recommended equipment?

It is simply that of the model Nano - First Person View Kit that also markets Hoverbot. For now, it is up to you to manage, since this version is temporarily no longer available. It is based on a Piko BLX 4 ESC RS 6A BLheli_S flight controller for 1S to 2S batteries, HB1103 to 8000KV brushless motors, 5.6 cm propellers, and a 5.8 GHz VM275T video camera combo . This is in the Nano - First Person View Kit version. To take off, you need to add a 2.4 GHz radio receiver, a Lipo 2S battery from 300 to 500 mAh with a red JST connector. 

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 teleporter v5, fatshark raceband, etc. 

Eachine Flyingfrog Q90 Review

This flying frog looks like a toy, but it displays pretty seductive features! The fully enclosed aircraft is based on a F3 flight controller, which drives brushed 8520 engines of 14000KV (slightly less than the "fast" models of Micro Motor Warehouse) for 5.5 cm propellers fed with 2S, by a Lipo 7.4V of 350 mAh in 30C with a plug Molex 2.0. The weight of the Flyingfrog Q90 without battery but with protections of propellers is 41 grams. We can expect a good power / weight ratio! The 2.4 GHz radio receiver is either DSM2, FrSky or Flysky.

And…

On the video side, the camera is a 1000TVL with a FOV of 110 ° associated with a transmitter 5.8 GHz of 40 channels and 200 mW (this is more than allowed by the European regulation). The dimensions are 8.8 x 8.8 x 4 cm for a diagonal of motor motor of 9.8 cm. The device is supplied with removable propellers. Based on technical data, it is a small machine that can prove to be nice to fly indoor, with which one can also hope to venture outdoors. The manufacturer ensures that the device is wind resistant, probably by putting forward its engines and its fairing. This will be checked, of course! Eachine Flyingfrog Q90 is offered from 66 € at Banggood (with the port but without taxes).

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 emax servo, emax red bottom, etc. 

Robots on the remote control, Interactive toys for boys

The world of toys is not standing still. And if even twenty years ago, children dreamed about dolls and realistic typewriters, then malyshni generation gadgets have conquered the robots on the remote control. It should of course be noted that they are addicted to not only children but also adults - everything depends on the proposed functional, yet manufacturers are increasingly oriented to young audiences. What is he - a robot on the radio, and whether it can be something more than just a toy? Could he not only entertain, but also something to teach the child? 

Automation of modern life 

Let's start with the fact that now more and more space in human life belongs to the automated devices. Today, few wipes hand, if there is a washing machine, and whether you'll be unlikely to rely on sunrise or cock cries to wake up in the morning, when it is possible to have an alarm clock. 

All our domestic gadgets - these are the same robots, just another level of complexity. The interactive robot has come already, and medicine (as an assistant in the operations) and in industry (construction machinery carried programmed for a specific task of devices), and in the defense industry (autonomous reconnaissance easily gather the information you need), what to speak of the various robot assistant who so actively promotes Japan - the world leader on the issue of robotics. You can not be afraid of these innovations, because progress is inevitable, and robots - an integral part of it. So, give your technophobe and still think about whether a robot on the remote control will be able to become the boys really terrific gift. 

Guided and self-guided robots 

Let's move on to the classification of robots. Let's start with the fact that they are managed and self-managed, in other words, subject only to the commands or make decisions for yourself. Most often the last type - a robot on the remote with the camera that captures the situation around so that artificial intelligence could make a decision. For example, appeared on the way an obstacle - controlled robot will stop in front of him, waiting for commands from the remote, while the self-governing, analyzing the situation and find a way to work around it. 

Naturally, self-managed robots cost more - because they are difficult in themselves, yet the process of choosing an action plan without any inclusion of human mesmerizing. 

Additionally, if you happen need to purchase some rc toys, you can search via Banggood website, which is one of the wholesale platform to provide affordable prices, such as solar rc car, arduino claw, etc. 

ZTE Blade A2 Plus, A Smartphone With A 5000mAh Large Battery

Are you searching for a smartphone which supports long time use? If your answer is yes, then ZTE Blade A2 Plus is suitable for you. As the entry-level smartphone, this product is configured with a huge capacity 5000mAh battery. Besides, it features metal unibody design, large storage and dual cameras configuration.

In terms of the appearance design, it adopts the 5D arc surface water droplets screen, combined with the metal body to provide you a nice looking phone. It focuses on details, which uses high-end cold tone craftwork and double sided laser diamond plating process.

Moreover, it comes with the MTK MT6750T Octa core processor running at 1.5GHz. It packs in 4GB of RAM and 32GB of ROM( support external Micro SD/TF card up to 128GB). Big storage it has! And it runs Android 6.0 operating system. 

Additionally, it is built in a 5000mAh huge capacity battery, which makes the phone have power all the time. It also supports fast-charging and OTG functions. I think this feature is benefit for those who likes playing the phone in a long time.

Specifications:

Brand: ZTE

Model: Blade A2 Plus

Device Type: Android Smartphone

CPU: Octa-core (4×1.5 GHz ARM Cortex-A53 + 4×1.0 GHz ARM Cortex-A53)

Chipset: MediaTek MT6750T

GPU: ARM Mali-T860 MP2

Camera: 13 Megapixels with LED and AF Rear Camera | 8 Megapixel Front camera

Memory: RAM-3GB/4GB | ROM 32GB External Memory Support up to 32GB (Uses Sim 2 Slot)

Display: Screen size 5.5 inches Full HD (1080×1920 Pixels)

Battery: Non-Removable 4,900 mAh Lithium-Polymer

SIM: Hybrid Dual SIM (Nano + Nano/MicroSD)

Sensors: Accelerometer, Light sensor, Proximity, Compass, Fingerprint

Color: Silver, Gold

Operating System: Android 6.0 Marshmallow with MiFavor UI

Dimensions: 155 x 76.2 x 9.8 mm

Weight: 189 Grams

More Feature: Metal Body Design, LTE 50 Mbps, HSPA plus, LTE CAT6 300 Mbps Download, HSUPA 5.76 Mbps Upload, HSDPA 21 Mbps Download, EV-DO Rev.A (1.8 Mbps Upload, 3.1 Mbps Download), Quick Charge Technology, HD Voice, Multi-language Support.

To sum up, this ZTE Blade A2 Plus 4GB RAM phone is a worth buying product. If you are interested in it, you can purchase it via Banggood website. By the way, this phone has another version ZTE Blade A2 Plus 3GB RAM that you also can take into consideration.

Vantac Q100 Review

The Chinese manufacturer Kingkong is master in the art of copying machines. But for once, it is he who gets copied! Or maybe it's an exchange of good practices? Its model Q100 (see here) is also called Q100 at Vantac. What are the differences ? The Vantac version is based on a camera combo - video transmitter of 700TVL instead of 600TVL for the Kingkong version. The Vantac version is exclusively available with a Frsky receiver, while the Kingkong is available either with a DSM2 receiver, Futaba receiver or without a receiver.

So ?

The choice simply depends on the radio control you have: Vantac for a Frsky, Kingkong for a DSM2 or a Futaba. What about a Flysky? Either you choose a Kingkong version without receiver and you install yours, or you turn to this version on eBay (note that I do not know if the seller is to recommend). The Vantac Q100 is available on Banggood for around 76 € (with port but without taxes), with a red or yellow fairing.

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 FrSky S6R, Frsky X8R, etc. 

Eachine DVR03, mini test

Another mini test! Why mini? Because, you will see, it was not necessary to continue testing further with this DVR03. What is DVR03? It is a camera combo - video transmitter 5.8 GHz with alluring features, which also acts as a recorder. The promise is therefore to have a video feedback in real time and to be able to record the images in HD quality.

Tour of the owner

The DVR03 is an AIO (All In One) combo larger than its competitors. It weighs 7.61 grams on the scale with its Tiny Whoop connector cable, 8.08 grams with the Molex 2.0 cable extension. And 8.35 grams with a microSD memory card. Because yes, despite its Lilliputian size, the weight of a microSD card is not negligible. It measures 3 cm in width, 4 in height counting the antenna, and 3 cm in depth counting the objective and the antenna. It is therefore not compatible with the pedestals for combos intended for the Tiny Whoop. In any case, his weight would not allow him to be placed on board these aircraft. The same applies to brushed machines such as QX90, QX95, QC90, etc. He needs a more powerful device. The lens ensures a wide angle 120 ° FOV via a 520TVL sensor.

The 5.8 GHz transmission part

The camera is coupled to a 5.8 GHz video transmitter compatible with 72 channels! Friendly. The emitter can also choose the transmitter power: 25 mW (compatible with European regulations), 50 mW and 200 mW. As well as the 0 mW, which corresponds to zero emission. This makes it possible to make adjustments without interfering with the other transmitters in operation. This was already the case with the TX03 (see the test here for more complete explanations), a very similar combo since it was the first to offer 72 channels and 4 powers. The antenna is of the polarized type, with 4 lobes (RHCP). The power supply to the camera requires 3.2 to 5.5V. A LED is used to check the settings, it indicates alternately the frequency range, the frequency, and one or more "-" symbols to indicate the transmission power. A single button on the top allows you to manage these settings.

First try

If a memory card is inserted into the DVR03, recording starts automatically when it is turned on! Practical, and a stopwatch in red indicates the duration. But the result on the screen of a 5.8 GHz video receiver, is disappointing. Frames are very clearly missing, we are far from 25 or 30 frames per second. This results in a jerky video, with blurry effects. Can not drive properly under these conditions! At the back of the camera are 3 buttons, marked C1 to C3. Pressing the C2 stops recording. The image is instantaneously more fluid, the usual quality for camera combos - transmitter 5.8 GHz, and which allows to pilot in immersion. Pressing C2 restarts the recording. And the framerate slowed down again. Too bad, because the real-time video feedback function is still the most important of this accessory! Can we drive in a "cushy" way, as for example with an ultra-stabilized machine like the Mambo of Parrot? Yes. But then pépère from home pépère ...

And recorded videos?

They are stored in avi, in MJpeg format, in a resolution of 1280 x 720 pixels at 30 frames per second. Is the image beautiful? No. The compression is strong (the throughput is 16 Mbps), introducing a blur effect. There is a strong fringing effect throughout the image (not just on the edges), that is to say a halo often blue around the dark objects on a light background. There is a strong remanence that introduces a blur of motion. What's more, the image is blurry on the edges. Pfiou, that is not very engaging! Only the colors are pretty nice, with a respect of the red enough unusual to be mentioned. Note that the sound is recorded via a microphone. A long press on the C2 button allows access to menus, which can be in French. Long press C1 button to play the videos on the memory card, they are broadcast via the 5.8 GHz link.

But then ?

It was expected that this combo camera - video transmitter, which was hoped to be able both to transmit a real time image with very little latency to pilot in immersion, and to record the image on board to avoid parasites And the low resolution of videos shot with a ground recorder. But the promise is not kept. If it is used only as an FPV camera, the DVR03 works correctly. But its weight and its congestion are not justified, it is better to prefer a TX03 to him. If used with both FPV video feedback and recording, this video feedback is too mediocre to drive in immersion. Only then remains a third use, that of a 720p camera, without taking advantage of video feedback. The picture is not great, far from.

Additionally, if you happen need to purchase some rc drones, you can search via Banggood website, which is one of the wholesale platform to provide affordable prices, such as rtf fpv racing drone, open source quadcopter, etc.