My major in college was SCM. Unfortunately, I didn't succeed in training, but I still kept thinking about SCM. Last year, I got a stm32 development board, and I was forced to give up for time reasons. When I saw Freescale at Lei Feng, I was a little excited. I was glad that the application was successful, but the delivery was not as good as mbot. Finally, mbot filled my heart because it was too simple! After the assembly is completed in 30 minutes, the video can be shared immediately after running the built-in program, which reduces the cost of installing X. At the beginning, I was drooling to see that the gods used aluminum alloy and plastic as the frame, and 51 and stm 32 development boards as the main control boards to assemble smart cars. With mbot, I can also make my dream smart cars by myself!

Unpacking

▼ The mbot packing box is colorful, suitable for the theme of children. The box is thick and durable, and there is no damage during the express transportation. In addition, a simple and practical mbock tutorial was presented.

▼ The box is divided into two layers, the main accessories are neatly embedded in the foam space, and the screws, cables and other accessories are at the bottom of the box. There is also a paper line patrol runway in the middle. In actual use, you can also use black tape and black pen to make your own line patrol runway.

▼ After unpacking, the accessories are as follows, mainly including the main control board, ultrasonic sensor, line patrol sensor, Bluetooth module, motor, infrared remote control, frame, etc. Originally, I wanted to go over Xbox to compare its cost performance, but later I found it meaningless, because other smart car solutions have a high threshold for entry, and it is difficult for people without programming foundation to play.

| mbot hardware assembly

▼ There are detailed assembly steps in the instructions to experience the assembly process. It took about 30 minutes from the study of the instructions to the completion of the assembly, and only one assembly process was encountered Difficulty: on wheels The screws are not easy to identify , the assembly process is less than 10000 words 。。。

▼ The rough appearance of mbot, the bare and leaky electronic components, and the rare taste of returning to nature, have built-in obstacle avoidance and line patrol programs. After assembly, you can record video for four punishments (de) and enjoy (se), and get full praise. MBOT is divided into Bluetooth version and 2.4G version. The remote control distance of 2.4G version is longer, but Bluetooth is more suitable for home users , got the Bluetooth version 。

▼ bottom Juxtaposed Two motors are the power source of mbot. The front universal wheel is convenient for steering. It is said that the universal wheel is produced by 3D printing! Together with the universal wheel is the line patrol sensor, by which the line patrol mode can identify the ground color and control the trolley movement.

▼ The infrared transmitter/receiver, light sensor and buzzer are integrated in the front of the mcore main control board. Other sensors and motors are connected through the standard cable. Compared with the connection mode of the DuPont line of the single chip computer, it is easier to identify and connect.

▼ Big eyes are cute. The two cute big eyes in front are ultrasonic sensors with the highest face value, which are used to detect obstacles in front.

▼ The mbot can be connected to the computer for charging and burning programs through the USB data cable, and can also be connected to the APP through the Bluetooth module. The computer can write programs to control the movement of the mbot, which is so simple!

▼ The official standard infrared remote control is better than the one sold on a treasure. With 22 buttons and the built-in program of mbot, it can control the manual, obstacle avoidance and line patrol movement of mbot, and experts can achieve more and more dazzling functions.

▼ The mbot main control board is adapted to the voltage of 3.7V-6V DC. The official kit is equipped with four No. 5 battery packs and 3.7V lithium batteries with a standard 2.0 interface. The mcore charges the lithium batteries through the USB interface.

▲ MBOT after assembly Dimensions are 17 * 13 * 9cm, which is about the size of the palm of an adult male prostitute. The official mbot store provides many sensors and other accessories, The mbot body is also compatible with Lego parts, raspberry pie and standard Arduino boards 。

| mblock graphical programming

▼ MBlock is developed based on the MIT open source Scratch2.0 Scratch2.0 adds instructions for electronic modules, Through "building block" graphical programming, the control of smart car components such as sensors, motors and LEDs can be realized, which is easy to use and cultivates the ability of programming and innovation.

▼ Mblock has built-in Arduino mode, unfamiliar Beginners of Arduino code can use mblock as a transition to improve C code capability through practice.

▼ The main control board mcore of mbot is based on Arduino UNO and supports Arduino IDE programming, when you can use it happily Congratulations, young Xia, when Arduino IDE controls the mbot smart car Advanced master succeeded 。

| Simple and practical APP

▼ The Android mobile app has no programming function. After installing the app, the mobile phone becomes an mbot remote control. The app provides three control modes: obstacle avoidance, line patrol, and manual. The manual mode includes three control modes: interface rocker, gravity, and shake shake. In addition, the APP can control the buzzer and light.

▼ The iPad version of the app is called mBlockly. First of all, I would like to praise the interface design of the app! The interface is colorful but not messy. You can start the journey of graphical programming by connecting mbot via Bluetooth. It is better and easier to use than the PC version of mbock. It is suitable for guiding children to get started.

Summary: Both the assembly process and the modular graphical programming of mbot are simple and easy to use, which is very suitable for guiding children into the programming world. The design of the computer version of mbot and APP is very good, and the operation is also very stable! It's worth getting started!

Suggestion: The optional car shell is provided to protect the internal electronic components and reduce the damage to the mbot caused by static electricity and external forces. Replace with LED indicators with lower brightness, and remind children to look at LED indicators less directly.