Mental Abacus Book 2 vs Arduino Programming Pro

Mental Abacus Book 2 focuses on advanced abacus topics, and it is a complete learning package on multiplication and division. Every concept and technique involved is explained thoroughly with plenty of examples and various diagrams. Book 1 and Book 2, together with the powerful demonstration kit “Abaculator”, comprise a comprehensive guide for abacus self-study. As in Mental Abacus, Mental Abacus Book 2 is divided into two sections, namely Tutorial and Abaculator. ABACUS TUTORIAL Interfaces are organized in a simple and easy way, absolutely the most appropriate learning material for novice to proceed. Advanced concepts, theories and techniques are explained not only by plain words, but also with massive illustrations. Numerous examples with demonstration further strengthen the study effectiveness. ABACULATOR A great tool that demonstrates the steps for BOTH hands abacus mental arithmetic. Just enter any multiplication or division equation, Abaculator will show you every step with detailed description and explanation. You can pause and continue whenever you need, change your desired settings for quotient estimation method or calculation method, or even switch to show set of steps for other number or equation in the middle of the demonstration. And More...VIRTUAL ABACUS Built-in virtual abacus enables you to follow the lessons and practice the Two Hands Fingering Method on the abacus at the same time. You can try to solve the examples on the virtual abacus by yourself and check with the demonstration steps provided on the page as well. FEATURES SUMMARY: - Decimal to Multi-Digit Multiplication - Multiplicative Pithy Formula for Fast Multiplication - Full Analysis and Details on Quotient Estimate Methods - Dealing with all kinds of Division Revisions - Specific multiplication and division settings in Abaculator explains every step in detail - Two hands fingering method fosters right brain functions - Virtual Abacus allows you to practise along everywhere - Assists in achieving the ultimate aim of abacus training, transforming visualized beads move on imaginary abacus and getting rid of the substantial abacus

Learn Arduino programming from scratch with 200+ practical lessons, circuit diagrams, and ready-to-use code examples. For beginners, students, hobbyists, and engineers looking to learn Arduino from scratch or advance their skills — build real projects, understand electronics, and master Arduino. The app includes a wide collection of electronic components, analog and digital sensors, and external modules used with Arduino. Each topic includes: • Clear, detailed explanations of how components work • Step-by-step wiring instructions and circuit guidance • Integration steps with practical usage tips • Ready-to-use Arduino code examples • Interactive quiz questions Available in 14 Languages: • English, French, German, Indonesian, Italian, Japanese, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Turkish, Ukrainian, and Vietnamese — study in your native language! The Pro version includes additional tools for faster learning and easier navigation: • Advanced lessons, circuit diagrams, and code samples • Full-text search across all Arduino lessons and components • Favorites to save and organize important topics The application provides detailed lessons and wiring guides for a wide range of hardware components commonly used with Arduino, including: • GPIO, buttons, LEDs • ADC, PWM • UART, I2C, SPI communication • Distance, motion, and infrared sensors • Temperature, humidity, and pressure sensors • Light, sound, gas, and touch sensors • LCD and OLED displays • Motors, relays, and actuators • Accelerometers and gyroscopes • Real-time clock modules These examples include wiring diagrams, explanations, and ready-to-use Arduino code. The built-in programming course covers essential C++ topics used in Arduino development: • Data types and variables • Operators and expressions • Control structures and loops • Arrays and strings • Functions and scope • Math and random functions • Bitwise operations • Preprocessor directives All lessons, component descriptions, and quizzes are regularly updated and expanded in every new app version. "Arduino" and all other mentioned trade names are trademarks of their respective owners. This app is an independent educational product and is not affiliated with, endorsed by, sponsored by, or associated with Arduino or any other company.