Discover the latest electronic gadget - MINI DS212 Oscilloscope

Following studies within an electronic engineer cycle are considered a good academic orientation that offers serious job opportunities for young people. If you intend to follow this school curriculum, you will be able to create integrated circuits, arithmetic and logical program units and many other sophisticated devices.

Universities around the world are constantly investing in equipment to train engineers with a good level.

Among the apparatuses that seem indispensable in such a training, one could quote the MINI DS212 Oscilloscope, a new and sophisticated modern oscilloscope available online with reasonable prices. Another famous Digital Storage Oscilloscope model is the Hantek DSO5072P, so you can also go check this out.

MINI DS212 Oscilloscope main features

This equipment is very useful for academics and even for Electricians who do not necessarily have a very good academic level considering the practical aspect of the operation and the simplicity of its use. For example, academics and even amateurs who want to carry out experiments find their goals in this device.

It is very effective if you want to test the impedance of a circuit or you want to estimate the voltage at the terminals of an electronic node. One of its crucial advantages is that it supports USB Flash memory.

The designers of this device insisted on the accuracy of calculations and tests:

1) Automatic measurement is based on several parameters such as frequency, cycle time, duty cycle and other details.

2) The data storage is done in a reliable and efficient way, one can meet several formats such as BMP, DAT, BUF or CSV, moreover, the storage is done in an U disk of capacity 8 GB.

3) If the researcher needs a well-defined signal format, he will find what he wants in the MINI DS212 digital storage oscilloscope because this device is capable of generating several types of signals such as sinusoidal, triangular or saw.

4) It has two measurement modes, optimized either vertically or horizontally. In both modes, we guarantee a minimum error margin.

5) You can operate it according to your choice, we have prepared for you different modes of operation like Synchronous mode: Auto, Normal, Simple, None, Scan

On the other hand, the MINI DS212 has a very sought-after design with a 2.8 "color TFT LCD (320 x 240 pixels). It does not stop there but you must know that its dimensions are small but it is powerful. It is therefore lightweight and portable from one place to another. It has a Lithium battery offering approximately 4 hours of battery life.

Everything about the Air-modeling ESC you need to know

Air-modeling is getting popular. In the DIY aircraft model world, experience and common knowledge sharing are quite essential. If you are an RC aircraft enthusiasts or you’re interested in air modeling, you need to understand some basic structures about your RC models like the gyro board and the Lipo battery board, and one of the most important part you need to know is the ESC (Electric tuning of model aircraft). If you want to DIY your RC models, you should know some basic knowledge about the ESC.

Introduction to ESC

Now the aircraft model ESC are generally brushless ESC because the brushless motor under the same power volume is much smaller than the brush one. Phoenix from the United States is the most famous brand in the world. As to the price, China's Hobbywing ESC and other brands is the best cost-effective choice.

How to choose the right ESC?

Choosing the right ESC needs to be based on your application and the power requirements of the motor. First of all, we must look at the ESC power, then to check the compatibility of ESC and motor. ESC is not compatible with all motors. In the actual situation, many brands of ESC don’t have enough power and enough current. Maybe you need 60A ESC, but it actually can only reach 55A in fact, so before you purchase, be sure to ask the supplier. If you use ESC below the motor power, it may cause the power tube to burn out. So the power problem is an important issue in choosing ESC.

Air-modeling ESC generally has the following characteristics:

1. Specifications

1.1 Output current: Continuous current 50A, instantaneous current 60A, sustainable for 10 seconds.

1.2 Input power: 5-12 Ni-MH / Ni-Cd battery or 2-4 lithium batteries

1.3 Weight: 58 grams

1.4 BEC output: 5.5V / 3A

1.5 Size: 38 * 52 * 15mm (W * D * H)

2. Features 

2.1 Unlimited speed support: all the industrial production of brushless motor maximum speed can be unlimited supported

2.2 Cyclical Menu settings, easy to operate

2.3 Super smooth and precise throttle linear

2.4 Safe power function: When the power is turned on, the motor will not start immediately whichever position the throttle lever of the remote control is to prevent the motor from rotating suddenly.

2.5 remote control signal loss protection

2.6 over-temperature protection: 110 ℃ automatically reduce the power half of the output, when the temperature below 110 ℃ the power output recovery

2.7 with powerful rudder ability, beyond the current ESC in the market

2.8 Suitable for all types of brushless motors

Compatible program card

The RC Car Program Card For Brushless ESC is used to modify the brushless ESC program and to update the internal Firmware of brushless ESC. It’s the same for all RC model toys. For example, the Hobbywing LED Program Card for different series Brushless Hobbywing ESC is used to program the brushless ESC and has a friendly user interface and easy to use.

Must have tools of DIY robots (part 2)

As we have said earlier in part 1, there are something that DIY entry beginners should configure as they are necessary to use. And in part 2, we will share more with you so that you can have a better idea about what you need.

Seventh: the power supply

The stable power supply is also necessary when debugging. In addition to meet the needs of a variety of voltage, the most critical is, usually, during the DIY process, it will inevitably lead to short circuit, and the stable power supply has overcurrent protection. In addition, the stable power supply is equipped with an ammeter, which can find the abnormal current. If you need to analog circuits, it is best to choose that can provide positive and negative tracking of the two power supply. The 19V DC Power Supply will provide stable power.

Eighth: carving knife

Because the PCB is easy to make mistakes, the design may also have loopholes, so it will need to be modified by secant. At this time, carving knife will make it very convenient.

Ninth: wire strippers

Although with scissors or utility knife, you can also strip the cable, it needs skills. If there is a stripping plier, it will be so much more effective and is not easy to break the copper cable (especially multi-strand soft). I will also recommend the Cable Drag Chain for CNC Router Machine which is very high-quality and durable.

Tenth: hammer

This should be a must. It is recommended to buy 1 pound half one, too little is useless.

Eleventh: vise

This is also an indispensable tool. It’s recommended to have a Clip Pliers set with different Pliers. And to use the vise more comfortable, a vise table bench can make it so much easier.

Twelfth: hacksaw

Whether to saw PCB or do some chassis and so on, we need a saw. Recommend choosing the standard one. That small, portable one is not convenient, one is because they have not enough strength, the second is because it’s hard to adaptive with the blade.

Thirteenth: file

When the size has a slight deviation, need to be amended to use. It is recommended to buy a multi-size set.

Fourteenth: glue gun

The glue gun is a DIY must, and can be used to fix some things on somewhere. It is best to pick the tip one because the electronic DIY thing is usually not big. Nowadays, it’s affordable to most people to have a high-quality and cheap hot glue gun themselves.

Fifteenth: ruler

Although normal, also has a great effect. It is recommended to configure a corner and a tape measure.

Must have tools of DIY robots (part 1)

I am a DIY enthusiast, and I am particularly obsessed with DIY robots and RC models and so on. In order to let the DIY group of new lovers can be more easily and quickly to get started, I would like to share with you guys my daily use of the configuration tools. One of the most important things you must have is a DC Mini Metal Gear Box Motor which is ideal for making robots. Other things are as follow:

First: electric iron

An electric soldering iron can meet most of the welding needs. 30W or so is enough. Recommended tip head one, so you can adapt to more cases. After the soldering iron is bought, the following improvements are recommended: Replace the two core wires with three core wires. Switch to three-pin plug, which can avoid the soldering iron-induced electrical damage to MOS devices. In addition, the welding quality and solder wire are closely related, it is recommended to configure two kinds of solder wire:

A) 0.6mm flux-containing solder wire, C-2 with higher tin content, for welding lead-in devices.

B) 0.3mm flux-containing solder wire for welding SMD devices.

Note: when welding, you should wear a welding helmet and a welding mask. Don’t ignore them for your personal safety! To remind yourself, what about purchasing a special set of cool welding helmets and a cool welding mask.

Second: tweezers

It is recommended to choose a pointed, slightly thicker tweezers. At present, the device is getting smaller and smaller, and SMD has become a trend. Tweezers will be your essential tool for welding.

Third: diagonal pliers

Although SMD will become mainstream, but will also be used in-line devices. At this point, the diagonal pliers can close the PCB to cut the pin.

Fourth: set tools

The most basic word screwdriver and the cross screwdriver should be equipped. Especially the cross screwdriver, you must configure a variety of specifications, otherwise, it is difficult to deal with different sizes of screws. The sharp cone and is also useful! What’s more, a wrench! There are so many cheap wrenches for you to choose.

Fifth: art knife

This is a lot of use. With this, an electric knife is basically not necessary.

Sixth: multimeter

Electricity is invisible, so we can only rely on a multimeter to judge if the current is on or off. It is recommended to choose the one supporting the automatic shutdown, or the power might be exhausted as it’s easy to forget to shut down. If the budget is well-off, select the larger range and supporting capacitance measurement, so you can save a capacitor table.

You might ask me if something like the portable heat gun or the drill is necessary...hah, keep following our blog and we will talk about that the next time.

You can not be called a qualified lazy without these three things

Honestly, just like other teenagers, we modern people are so used to feel tired. Some people call it one of the sub-health manifestations. Sometimes, I really want to cheer up and be energetic, but I just feel so tired that instead of going out, I’ll rather stay in my bed all day, even though I just wake up. It's like a dead loop.

I am too lazy to get out of bed, too lazy to go out, sometimes too lazy to even say too much. That’s why I found this three amazing stuffs for our “lazy” people. If you haven’t owned these three things, you are not even close to joining our “lazy club”, and I’m still the “lazy queen”.

1. Bedside mattress caddy 

This mattress storage hanging organizer can be hung beside your bed. This mattress holder can store many things that you need on the bed like some books, your glasses, your iPad or iPhone, some lotions and so on. For those who do not have bedside cabinets, this hanging caddy can not only neatly store items, but the necessary items also can be easily used, so you can save a lot of trouble. Of course, this hanging organizer can also be hung at other places like beside your desk or your car seat.

2. Recoil retractable key chain

If you have a huge bag like me and you always need to spend like 5 minutes searching for your keys in your bag, try this retractable keychain! you can lock it anywhere like your bag or your jeans. When you arrived home, you don’t even need to find your key, you just pull the chain then you have your key! This retractable key chain can also be a retractable ID holder for commercial use which is very high-quality.

3. WiFi wireless doorbell intercom 

With rain-proof cover, unlock function, this wireless doorbell intercom can be connected with your cellphone (both iOS and Android) so that you don’t need to go anywhere to check who is outside. Just “FaceTime” with them using your cellphone! Have to say another great invention! Except for being a smart WiFi doorbell intercom, it can also be used as a monitor security camera with IR night vision.

Other things like the remote control switch are also very convenient, you just need to explore more.

How to enhance your music player's super bass?

“Boy, you got my heartbeat runnin' away

Beating like a drum and it's coming your way

Can't you hear that boom, badoom, boom, boom, badoom, boom, bass?

You got that super bass

Boom, badoom, boom, boom, badoom, boom, bass

Yeah, that's the super bass”

Have you heard about this rhythmic and vital hip-hop song from Nicki Minaj? I bet you do. Do you love to listen to super bass electronics dance music or hip-hop music? If you do, you might be concerned about your music player as some people are used to connecting their cellphone with wireless music receiver but some ultra super bass music might hurt your speaker.

What is bass

Bass is the low part in the audio (below 100HZ, even including the infrasound, although people can not hear, but still effective). Bass is very energy efficient, that is, needs very large power. As the human ear is not sensitive to the bass, so the music player needs the strong bass to create results. Therefore, the ordinary audio products on the market claiming to have DBB features, it is impossible to meet the requirements of the super bass.

Subwoofer(super bass)

The recognition of the bass for the human being ears are very limited. But other senses can feel its existence. In simple terms, it is the shocking feeling! For example, when we watch a movie in a cinema, we can feel the shock of the power and energy that the plane taking off. But if our home theater is not equipped with a subwoofer or the configuration is unreasonable, we can not feel this shock.

How to enhance your music player's super bass?

TruBass technology can produce a more profound, vigorous, flexible bass. TruBass with a smaller volume of multimedia speakers to produce bass music, which is almost comparable to large speakers. It produces a range of virtual sound field that is much larger than the speaker range itself, accordingly, the best range of listening area is also much larger.

From the psychoacoustics, TruBass produces a great boost to the low-frequency effect. TruBass takes advantage of this way of ear listening. All of these factors are used to transform the vibration of the sound into nerve stimulation, eventually forming a sensation or hearing.

So the Bluetooth Wireless Super Bass Portable Speaker is really amazing! It’s specially designed for bass music lovers!

Share with you some easy magic tricks that everyone can play

As many festivals are coming, which means there will be a lot of parties, if you want to warm up the atmosphere of the party, a lovely simple magic seems to be a good choice. Today I want to share a few magic that does not need any complex props and very easy to learn. You will become the focus of the party!

1

You need a banana and a needle.

First, disinfect the needle. And then insert the needle into the banana, cleverly divided the banana flesh into three parts, but left no obvious trace on the banana peel. During the show, you can let three children try to split the banana, but the rule is without a knife. At this time, the children will feel confused. Then, you let a child hold the banana, and make two waving machete posture. Finally, you let them open the banana, and they will find that it has been divided into three parts.

2

You only need a pack of ordinary playing cards.

First of all, you privately split the poker cards into two group - red and black colors, called Group A and Group B. Then you invite a child, let him choose a card from the A group and remember it, then put it to place in the B group, and you close your eyes the whole time. Then let the child shuffle the group B card more than a few times, and then handed them over to your hand. Since the color of the card of group B is different from the color of the selected card, you can find the chosen card quite easily! if you want it to be even more dramatic, try the 24k gold cards which looks luxury.

3

You can also use some easy magic props

One of the magic props that I will recommend is the Uncle Fester Light Bulb. It’s not just a light bulb, but a magical light bulb that whenever you want it to light it will light itself. In fact, you just need to hide a magnet, when the magnet gets close to the lamp, it will light, but it looks like an ordinary light bulb. Holding it in the air, saying, "Forget to pay the electricity bill! "It immediately turns off. So it’s a good interactive magic.

If you know how to play the mahjong magic, I will recommend the vintage mahjong set which looks cool and mysterious.

Own these accessories, your Wii game times will be so much more fun!

Although in addition to the original set of handle and host, it is difficult to say what Wii accessories are sure to buy spending extra money. But there are many excellent game manufacturers, in order to enable users to get more realistic gaming experience, introduced a number of unique accessories, which can effectively make the game more fun.

Consumers just need to choose whatever they need and they want. The following are some of the recommended equipment:

1. Classic Controller: play Monster Hunter Series (a must-have for Monster G series) some other games. A very basic and classic handle.

2. Steering wheel: play Mario Kart DS, Need for Speed and other racing games to have a more realistic feeling. Of course, you can also use the classic handle.

3. ZAPPER Rifle: Resident Evil, Ghost Squad, and other shooting games can be equipped.

4. WII FIT: can be used as a yoga board to have the special experience, also can be used to exercise the body, but the price is not cheap.

5. Dancing mat: the price is very cheap, it can be said to be the most cost-effective accessories. Relatives and friends can play all kinds of music games on the dance mat, while exercising, it is also very interesting.

6. NGC handle: play with NGC games.

7. Drum or guitar: play Taiko no Tatsujin and other exclusive music games available, so the use rate is not high, and it’s not very sensitive, so it’s not recommended to purchase unless you are really obsessed with these exclusive games.

8. Wireless routing: for WII networking, other devices supporting WIFI can also be used, such as mobile phones, laptops, PSP, NDS, iPod and so on.

9. Rechargeable battery: 2000MAH battery for more convenient use.

10. Wireless Remote Controller: This Wii Remote Controller is a wireless, battery operated controller that works by sending a signal to a small infra-red strip which you place at your TV set. This combines the motion-sensing technology and feedback technology. With motion-sensing technology, this Remote Controller has the ability to sense acceleration along three axes through the use of an accelerometer. Audio and rumble feedbacks allow you to feel like in real games acoustically and tactually.

How to use the Xbox 360 Dual Controller Charger

To charge the battery pack using a charging cable, follow these steps:

1. Press the AA battery pack to remove the battery from the controller.

2. Insert the rechargeable battery pack into the battery compartment of the controller and press down to hold it.

CAUTION: To prevent you from pinching your fingers while loading the battery pack, press the flat side of the battery pack.

3. Connect the charging cable to the charging port on the front of the controller.

IMPORTANT: Be sure to load the rechargeable battery pack or AA battery pack before connecting the charging cable. Otherwise, the controller may be damaged.

4. Connect the charging cable to the controller port.

5. Turn on the Xbox 360 host.

Note: If you do not turn on the Xbox 360 host, the battery pack will not be charged.

6. Now you can choose to keep the Xbox 360 host power on or turn off the power to the host. No matter how you choose, the light of the charging cable will be red light, indicating that the battery is charging. When the indicator turns green or turns off, the battery pack is fully charged.

Note: To turn off the Xbox 360 host and continue charging the battery, you must turn off the host by setting the screen.

Play while charging

You can use the controller while playing games on the Xbox 360 host while charging the controller at the same times. When the controller is connected to the charging cable, it will continue to use the wireless signal so that you can still play the game. Do not use the charging cable if the wireless controller does not load a rechargeable battery pack or AA battery pack.

Clean the battery pack

If you must clean the battery connector, clean it only with a dry cloth. Water or chemicals may cause damage to the joint.

As you can see, it’s quite easy to use the Xbox controller charger. I also want to share with you guys lots of interesting facts and useful information about the Xbox One such as how to maintain the Xbox One controller. One thing I will recommend is the Xbox One protective case which is made of silicone. It’s durable and comfortable to use. You just need to spend a few bucks, your Xbox One controller will be protected better.

AI is increasingly powerful: AlphaGo Zero no longer needs human knowledge

How powerful is AlphaGo Zero?

l AlphaGo Lee, who had finished with 4: 1 victory over Li Shih-hong, was already the top level of the human chess community, but with AlphaGo Zero, the score was 100: 0.

l A few months ago, AlphaGo Master, who defeated Kejie at 3: 0 in Wuzhen becoming the world champion, also finished by AlphaGo Zero - winning rate up to 90%.

l There is no doubt that AlphaGo Zero is the strongest chess player in the world. Even more frightening is that AlphaGo Zero’ s growth entirely without human intervention.

Why is AlphaGo Zero so powerful?

October 18, 2017, DeepMind published a new paper in the "Nature" magazine, officially introducing to the world the latest version of AlphaGo - AlphaGo Zero, and called it the Final Version of AlphaGo.

AlphaGo Zero, using purely intensive learning (without the need for human samples or guidance, without any domain knowledge other than the basic rules, and purely intensive learning can be used to achieve beyond human level.) to self-chess, after each game, the neural networks and powerful search algorithm will combine, and the system performance will rise slightly. After constantly adjusting the chess path, AlphaGo Zero eventually be able to predict the opponent's action and Win.

AlphaGo Zero represents the significance of AI progress

AlphaGo Zero proves that, even in the most challenging areas, purely enhanced learning is also feasible. In addition, purely intensive learning methods only need to spend very little training time, but compared to the use of human data, to achieve a better asymptotic performance. In many cases, human data, especially expert data, are often too expensive or simply not available. AlphaGo Zero is completely independent of human data, and if similar technologies can be applied to other issues, these breakthroughs can have a very positive impact on society.

Therefore, the success of this system is also a big step towards the long-term goal of artificial intelligence research - to create an algorithm that achieves transcending human competence in the absence of human input. In the future, this result will be more cited in the AI field. In fact, high-tech robots are not far away from our daily life. In the modern society where the life speed is accelerating, AI products are also playing an important role in the housework area. Our rice cookers can be connected to the mobile phone APP to set the cook time in advance. In the hot summer, we can turn on the air conditioner through our smartphone in advance so you can enjoy the cool breeze the moment you arrived home. As to the floor cleaning, we have - the incredible Xiaomi Robot Vacuum Cleaner.

The Xiaomi Robot Vacuum Cleaner has the upgraded 2-in-1 sweep and mop cleaning technology. You can customize a specific cleaning area by connecting with the phone APP. Using the powerful self-learning skills like AlphaGo Zero, this highly intelligent robot can sweep while laser scanning, recording the size of the home, and then automatically plan the best cleaning route. More intelligent features like Three-dimensional Vacuum Cleaning System, 2000Pa Super-Suction, Obstacle climbing, Large Capacity Battery, Anti-drop sensors, Convenient use and clean design, leaves no single dirt in any corner.

Exclusive Banggood Present

From October 23 to October 29, Xiaomi products such as this Xiaomi Robot Vacuum Cleaner will be promoted at an incredibly low price. If you are interested in the brand Xiaomi, the world's 4th largest smartphone maker who designs all excellent high-quality electronics, it will be the best time in the year that you shouldn’t miss!

Note: you can use the coupon code 2FXMZ to save extra $2 for Xiaomi Smart Home

2017 BAOFENG Walkie Talkie Ranking

Over the years, despite the growing performance of smartphones continue to develop, they can not completely replace the walkie-talkie. These are due to the unique characteristics of the walkie-talkie. The walkie-talkie is not limited by network signals, has low communication costs, one-to-one and one-to-many conversations, and simple operation. These features are very important in the case of emergency scheduling and collective collaboration. So, whether you are due to work needs, or because of outdoor sports interest, in your daily life, you may be inseparable from the walkie-talkie.

If you have a study of the brand of the walkie-talkie, you must know Baofeng walkie-talkie. The brand focuses on the production of high-quality walkie-talkies with a variety of different properties. Because this brand has a lot of different models of the walkie-talkie, you may not know how to choose. Let's take a look at the most popular 2017 BAOFENG Walkie Talkie models consumers and explain their differences for you.

Ranking as below:

1. BAOFENG UV-6

2. BAOFENG UV-82

3. BAOFENG UV-5R

4. BAOFENG BF-888S

5. BAOFENG UV-6 Plus

Except for the lasted UV-6/UV-6 Plus and the super affordable BF-888S, I want to talk about the UV-5R and the UV-82.

UV-5R: widely well-received

Speaking to Dual Band Handheld Radio, you might think about the expensive brand Yaesu. Compared with the price of Yaesu, BAOFENG UV 5R has the relatively much lower price, so you might doubt that is it there any quality problems? However, this UV 5R radio walkie-talkie has almost 5-star reviews and is the top-selling champion on websites like the Amazon and Banggood. Some commented that “Superb low-cost dual band HT with great performance and extras”, “No Better Way To Spend Thirty Bucks”, “Don't judge the product on price- it may surprise you”. It’s so surprising, but we all have to admit that Baofeng beats other companies again by this high-quality durable UV 5R radio walkie-talkie with the high-cost performance.

UV-82: more advanced

The latest radio to come from Baofeng! This radio has upped the bar on ham radio technology! Compared to previous Baofeng products (UV-5R and the UV-B Series) this radio comes with a much louder speaker (1 watt!), a more solid design with larger buttons, and a better antenna. This radio can be programmed with or without a PC to also work on private repeater systems. For more professional users, you shouldn’t miss this BAOFENG UV 82.

Is it Arduino too hard for a beginner to start?

What is Arduino

Arduino is a convenient and flexible open-source electronic prototyping platform that includes hardware (various models of Arduino board) and software (Arduino IDE). With Arduino's growing popularity, more and more people are beginning to get in touch with Arduino. Arduino has thus turned from a professional tool to a lot of people's research interests.

Since Arduino designs and manufactures single-board microcontrollers and microcontroller kits for building digital devices and interactive objects that can sense and control objects in the physical world using a variety of microprocessors and controllers, so it’s not that simple for completely physics layman.

However, is it impossible for us to start learning Arduino from zero?

If you are really interested in Arduino open source hardware and are willing to spend time and effort to do research, then even if you are not professional in this area, you can also make the best use of your own creativity to create your own Arduino board.

What are the basic preparations for Arduino entry?

Software

1, to understand the basic grammar of the C language

2, pay more attention to other experienced people’s Arduino code examples

3, to find and collect some basic LIB

4, to understand the analog port, data port access, serial, SPI, I2C and other communications

Hardware

1, commonly used sensors, such as the human body infrared pyrolysis, temperature and humidity sensors, vibration sensors, Hall sensors, relays, door sensors, ultrasonic ranging, infrared rangefinder sensors, smoke sensors, color sensors

2, commonly used devices such as LED, analog-to-digital converters, capacitors, resistors, photoresistors, reed switches, comparators, GSM modules, memory chips (AT24C256, etc.)

3, steering gear, stepper motor, servo motor control, and operation

4, modules such as voice module, USB module, wireless module (GSM, 315M, 433M, infrared, Bluetooth, etc.), WIIMOTE handle, time module (such as DS1302), LCD display (such as nokia_3310, LCD1602, etc.)

Recommended modules

1. Ethernet: for Arduino Ethernet modules, such as the Geekcreit® Ethernet Shield Module W5100, ENC28J60 is the most used.

2. Development Board: The ATmega2560 MEGA2560 Development Board is also very basic and essential.

3. Bluetooth modules: HC-06 Wireless Bluetooth Transceiver Module(HC 06 Bluetooth Module)

4. DIY tool: the DIY Smart Robot car Platform Kit For Arduino