Specification:
Product Name: Microcontroller-Based Counter Kit
Circuit Board Dimensions: 82mm x 57mm
Operating Voltage: DC 5V-6V
Main Chip: STC90C52 Microcontroller
Display: Single-digit LED display with integrated counting functionality

Note: This is a DIY kit, you need to solder and assemble it.

Features:
1. Precise Counting Functionality: Features a microcontroller-based design for reliable and accurate count increments.
2. Four-Button Control System: Includes Reset, Start, Pauses, and Clear buttons, enabling intuitive operation.
3. Easy Assembly: Components and circuit layout are clearly marked, ideal for electronics hobbyists and DIY applications.
4. Collaborative Design: Uses NE555 timer and STC90C52 microcontroller for enhanced performance in counting circuits.
5. Compact Layout: Small PCB footprint for integration into other electronic projects or standalone usage.

Package Include:
3x 100 Direct-insert Resistors
3x 10K Direct-insert Resistors
4x 1K Direct-insert Resistors
2x 30p Ceramic Capacitors
1x 104/0.1uF Ceramic Capacitors
1x 12M Crystal Oscillators
1x 10uF Electrolytic Capacitors
1x 47uF Electrolytic Capacitors
1x 5mm Green Light-emitting Diodes
1x 1N4007 Diode
2x 9014/EBC Transistors
1x STC90C52 MCU Chip
1x DIP40 Chip Holder
1x NE555 Integrated Chip
1x DIP8 Chip Holder
1x Red Two-digit Digital Tubes
4x 6*6*6 Micro Switch Buttons
1x 6P/2.54 Pin Header
1x 82*57 Circuit Board