Electronic DIY Calculator Production Kit Digital Tube Display with Shell Single-Chip Microcomputer Soldering Practice

Electronic DIY Calculator Production Kit Digital Tube Display with Shell Single-Chip Microcomputer Soldering Practice Description

This DIY kit allows you to assemble a fully functional electronic calculator featuring a clear LED digital tube display. Ideal for learning how digital circuits and simple computing devices work while gaining practical soldering experience.
Built around a single-chip microcontroller, the kit demonstrates basic embedded system design, including key scanning and display driving. It is suitable for beginners to understand MCU principles and for hobbyists to practice programming and hardware debugging.
The package includes PCB board, electronic components, LED tubes, keypad, and an easy-to-assemble protective shell. Once assembled, the shell protects the circuit, improves durability, and gives the finished calculator a clean, professional appearance.
Designed specifically for soldering practice, this kit features through-hole components with clear markings, helping users improve soldering technique, component recognition, and circuit assembly skills. Perfect for students, makers, and electronics enthusiasts.
Suitable for STEM education, electronics courses, and workshop activities. The kit helps users understand basic electronic components, circuit layout, and how calculators process input and display results, making it an excellent teaching and self-learning tool.

1. Composed of a dedicated circuit board, digital tube, microcontroller, buttons, etc.
2. Performs addition, subtraction, multiplication, and division operations, supporting to 6 digits. If the result exceeds 6 digits, only the first 6 digits are displayed if it is a decimal; if it is an integer, it will be represented in scientific notation.
3. Color-coded resistor value conversion, supporting 4-band and 5-band resistors. The maximum calculation range is less than 4KM, and the accurate calculation range is less than 1M. It automatically identifies 4-band or 5-band re