SMD Components Soldering Practice Test Kit 300 Pieces LED Circuit Board FR-4 PCB Material Sequential Flashing DC9V

SMD Components Soldering Practice Test Kit 300 Pieces LED Circuit Board FR-4 PCB Material Sequential Flashing DC9V Popis

Color: As shown in the picture
Material: PCB + Metal

Specifications:
PCB Material: FR-4 PCB Board
PCB Size: 145mm x 100mm
Power Supply: DC9V Input
Target Audience: Beginner-level SMD soldering practitioners
Components Used: Common and standard surface-mount device (SMD) components
Features:
1. 12 Independent Circuits for LED Testing
Each kit includes 12 sets of 8 LEDs controlled by two chips (74HC573 and 74HC164). This enables users to identify soldering quality and functionality through LED flashing and sequential illumination patterns.
2. Step-by-Step Visual Feedback
During operation, the LEDs perform sequential flashing and steady lighting checks. This testing ensures beginners can easily identify errors caused by soldering issues like virtual solder joints.
3. Compact and Beginner-Friendly Design
With a modest size of 145mm x 100mm, this kit is designed to fit comfortably workbenches while maintaining a structure suitable for basic soldering exercises.
4. Comprehensive Circuit Design
The kit features a stable AC6V-DC9V power supply system equipped with diodes and capacitors that simplify the learning process for soldering and circuit assembly skills.
Color: As Shown
Material: PC+Metal

Package Contents:
1*SMD Components Soldering Practice Test Kit